Update: 4th of November, 10:30 p.m. UTC

Tropical Storm Goni (Rolly), located near 14.4N 113.3E, east-southeast of Da Nang, Vietnam is moving slowly across the South China Sea toward Vietnam, near 8 km/h (4 knots).

Maximum sustained winds are 65 km/h (35 knots).

Over the next couple of days, Goni is expected to move west-southwestward and make landfall along the south-central Vietnam coast as a tropical depression later on Friday.

Now a tropical storm Goni (Rolly) is located near 14.7N 119.5E in the West Philippine Sea with maximum winds 101 km/h (55 KT). Storm has been tracking west-northwestward in the last 6 hours.

As Goni further weakens, it is expected to leave the Philippine Area of Responsibility on Tuesday morning

Update: 1st of November, 10:00 a.m. UTC

After landfall over the eastern coast of Catanduanes, Goni continues its movement toward the west-southwest. The second landfall is expected over southern Vietnam near Qui Nohn.

Goni has weakened significantly since the landfall but still is a powerful and life-threatening cyclone. It is expected that the system will continue to weaken primarily due to land interaction and is expected to emerge over the South China Sea with maximum one-minute-sustained winds 165 km/h (90 knots) during the late evening hours on Sunday.

Although Goni will weaken rapidly over the terrain of southern Indochina, heavy rainfall will affect ongoing flooding in central Vietnam.

Update: 31th of October, 11:00 p.m. UTC

Goni has made landfall on Catanduanes island on Sunday at 04:50 local time as equivalent to a Category 5 hurricane with maximum sustainable winds of 314 km/h and even higher gusts.

The storm is now making a second landfall over the Bicol Region, specifically over Albay and Camarines Sur provinces.

Expected threats are destructive typhoon winds, life-threatening storm surges and heavy rainfall, causing landslides and flooding.

Update: 31th of October, 1:00 p.m. UTC

Super typhoon Goni (Rolly), located 14.7N 127.6E, east of Manila, Philippines, has tracked west-southwestward at 24 km/h (13 knots).

The system will continue its current tract then slightly weaken and head westward and make landfall over central Luzon on early Sunday, then track over Manila, and exit into the South China Sea.

The second and final landfall is expected over central Vietnam, south of Da Nang.

Maximum sustained winds are 287 km/h (155 kt) with gusts 352 km/h (190 kt).

Update: 30th of October, 10:00 p.m. UTC

Goni (Rolly) has yet again intensified and the maximum winds are peaking at 287 km/h (155 KT) and gusts 351 km/h (190 KT).

Typhoon maintains its Category 5 and is predicted to track westward and make landfall on early Sunday in central Luzon, northeast of Manila. However Goni should weaken to Cat. 4 before the landfall.

Update: 30th of October, 10:30 a.m. UTC

Goni has undergone a rapid intensification in the last hours. The storm has maximum winds of 277 km/h (150 KT) with even higher gusts, making Goni the Earth’s strongest storm of the year.

Typhoon continues its movement near 16.3N 131.6E over warm waters of the Philippine Sea. Warm environment is very favorable condition for further intensification. Forecasts predicts Goni to maintain a Category 5 strength over the next 36 hours.

Landfall is predicted on early Sunday in central Luzon and could be potentially destructive.

Update: 29th of October, 9:00 a.m. UTC

Goni (local name Rolly) has strengthened into a typhoon. Currently located near 16.8N 135.8E, east of Manila, Philippines, Goni is moving toward the west-northwest at 17 km/h (9 KT) speed.

Maximum sustained winds are near 130 km/h (70 KT), with gusts near 157 km/h (85 KT).

It is expected that Goni will move generally westward by Saturday evening, then west-northwestward by Sunday as it moves towards Quezon – Aurora area before making landfall over the Bicol Region and Eastern Visayas this weekend Sunday morning.

It is forecasted that Goni will intensify into typhoon Category 3 while moving over the Philippine Sea. As it moves towards eastern sections of Central and Southern Luzon, it may bring heavy rains over these areas starting this Friday.

https://www.windy.com/-Wind-accumulation-gustAccu?gustAccu,14.998,114.554,6,internal

Update 5th August 6:30 a. m. UTC

Currently located at 46.1N 72.2W, Isaias weakened into a Post-Tropical Cyclone. It is now moving toward the north-northeast near 56 km/h (30 knots) with an expected decrease within the next hours.

Maximum sustained winds have decreased to 65 km/h (35 knots). It is forecasted that the wind will drop below tropical-storm-force within the next few hours and dissipate over southeastern Canada.

The threat of tornadoes will continue over portions of Maine for a few more hours.

Update 4th August 8:30 a.m. UTC

Isaias made landfall in the Carolinas as a hurricane and weakened into a Tropical Storm. Currently located near 35.9N 77.7.W, Isaias continues its movement toward the NNE with a present movement of 43 km/h (23 knots).

Maximum sustained winds are reported to be near 110 km/h (59 knots) with gusts to 82 km/h (44 knots).

Isaias will bring heavy rainfall, storm surge, and a threat of tornadoes.

Update 3rd August 9:00 p.m. UTC

Isaias is currently predicted to be hurricane or near the hurricane strength, when it reaches northeastern South Carolina and southern North Carolina on Monday evening.

Maximum sustainable winds are 110 km/h (59 KT) and location at 32.0N 79.4W.

Arrival to the coastline posses a threat of dangerous storm surge and residents should follow advices from emergency officials.

Hurricane should bring tropical storm force winds and gusts to the mid-Atlantic coast on Tuesday. Heavy rainfall along the East Coast will cause flash and urban flooding, especially in the eastern Carolinas.

Update 3rd August 10:00 a.m. UTC

Isaias is forecasted to regain the hurricane strength before it reaches the coast of eastern Carolinas. The exact location is at 29.7N 79.9W with maximum sustainable winds 113 km/h (60 KT). Isaias is moving to the north at 15 km/h (8 KT) and there is a danger of life-threatening storm surge along the immediate coastline of northeastern South Carolina and southern North Carolina.

Heavy rainfall may result in flash and urban flooding, some of which may be significant.

Tropical storm conditions are expected to spread from Florida to portions of southern New England through Tuesday afternoon.

Update 2nd August 8:00 p.m. UTC

Isaias is located approximately 135 km southeast of Cape Canaveral Florida and 65 km east-southeast of Vero Beach Florida with maximum sustainable winds 100 km/h (56 KT).

Tropical storm warning is in effect from Jupiter Inlet, Florida, to Surf City, North Carolina. Storm watch is active for areas from North of Surf City to Duck North Carolina.

Tropical storm conditions will persist along the east coast of Florida through early Monday. Isaias will reach Georgia, South Carolina and North Carolina Monday and early Tuesday.

Update 2nd August 1:00 p.m. UTC

Isaias continued to weaken and has not regain a hurricane strength. However it will likely keep its intensity of a strong tropical storm.

Storm is positioned just off the coast of South Florida right now and should be tracking near Florida's eastern coast through Sunday.

The final landfall is predicted on Monday night or early Tuesday in South Carolina or southeast North Carolina.

Maximum winds weakened to 101 km/h (55 KT) with movement speed 14 km/h (8 KT).

Update 2nd August 1:00 a.m. UTC

Isaias has weakened into a tropical storm as it headed towards the Florida coast with maximum sustainable winds 111 km/h (60 KT) and moving speed 11 km/h (6 KT).

It is expected to intensify into a hurricane again overnight and the center of the storm should hit Florida coast Saturday evening or early Sunday.

Update 1st August 3:00 p.m. UTC

The center of hurricane Isaias is currently moving over the northern Andros Island and should reach Grand Bahama Island in the Northwestern Bahamas later today.

Exact location is at 24.7N 77.9W with maximum sustainable winds 130 km/h (69 KT). Hurricane is moving to the northwest at 19 km/h (16 KT).

Hurricane conditions and storm surge will continue in the northwest Bahamas today and during Sunday, threat is heavy rains and flash flooding.

East coast of Florida should prepare for dangerous storm surge, especially in areas from Jupiter Inlet to Ponte Vedra Beach.

Update 31st July 9:00 p.m. UTC

Isaias is located at 22.2N 75.2W with maximum sustainable winds 120 km/h (65 KT). The threats are life-threatening flash flooding and mudslides in the affected areas.

Majority of Bahamas is under a hurricane warning. Hurricane watches have been issued for parts of Florida's Atlantic coast - Hallendale Beach to south of Boca Raton Florida and Volusia-Brevard County Line.

Hurricane conditions are expected to occur today and on Saturday in portions of the Bahamas.

Update 31st July 7 a. m. UTC

Isaias has become the second hurricane of the 2020 season. Located near latitude 20.6 North, longitude 72.7 West, Isaias is moving toward the northwest near 30 km/h (16 knots). Its movement toward the northwest with a decrease in forward speed is expected for the next couple of days. Then it is expected to move toward the north-northwest.

Maximum sustained winds are near 130 km/h (70 knots) with higher gusts. It is expected that Isaias will strengthen and remain a hurricane for the next couple of days.

The center of Isaias will move near or over the Southeastern Bahamas and move near or over the Northwestern Bahamas and near South Florida on Saturday.

Hurricane will produce heavy rains and potentially life-threatening flash flooding and mudslides, possible storm surge in affected areas.

Update 30th July 8.30 a. m. UTC

Tropical Storm Isaias becomes the ninth named cyclone of the 2020 Atlantic season. Located 16.7N 67.2W, Isaias moves near 30 km/h (16 knots) toward the northwest. The expected motion is toward west-northwest to the northwest with some decrease in forward speed in the next couple of days.
Maximum sustained winds are near 85 km/h (46 knots) with higher gusts.

Isaias will move over Hispaniola later today and near the Southeastern Bahamas on Friday.

Heavy rains that can trigger potentially life-threatening flash flooding and mudslides are expected from the Leeward Islands to Puerto Rico and Hispaniola.

https://www.windy.com/upload/5f23cd153102b40019bd3e0e?gustAccu,26.189,-78.571,5,internal

Update: 26th of November, 02:30 p.m. UTC

Nivar has further weakened into a deep tropical depression after making landfall near Puducherry. The storm is currently centered west-southwest of Tirupati.

Maximum winds are 93 km/h (50 kt).

Heavy rainfall is causing flooding. A flood alert has been issued in Vellore and flood warning to people residing in low-lying areas.

Update: 26th of November, 01:00 a.m. UTC

Cyclone Nivar has made landfall north of Puducherry and Mamallapuram in Tamil Nadu at 3:05 a.m. local time.

Nivar has weakened and moving north-northwest wards near 12.0N 80.1E with maximum sustainable winds of 129 km/h (70 kt). The storm should further weaken into cyclonic storm in the next 6 hours.

Heavy showers and high winds still continue in Puducherry and Chennai and will likely extend till at least Thursday afternoon.

Update: 25th of November, 10:00 a.m. UTC

Nivar was located near 11.2N 81.8E, southwest of Kolkata, India continues to strengthen. The system is moving near 16.6 km/h (9 knots), tracking toward the southeastern coast of India.

Maximum sustained winds are near 111 km/h (60 knots).

The system has favorable conditions over the Bay of Bengal that will lead to additional strengthening before making landfall south of Chennai, later today.

It is forecasted that Nivar will reach hurricane-equivalent strength later and will reach a peak intensity of 140 km/h (75 knots). After landfall, Nivar is expected to rapidly weaken.

Heavy rainfall and strong winds continue to lash the coasts of Andhra Pradesh and Tamil Nadu.

Update: 24th of November, 11:00 a.m. UTC

Tropical cyclone Nivar was located near 9.5N 83.3E, 283 km northeast of Kalmunai, Sri Lanka. Nivar is generally moving toward the northwest, with a slight turn to left this morning, along the southwestern periphery of a deep-layer ridge to the northeast.

Maximum sustained winds are around 75 km/h (40 knots) with a forward motion at 6 km/h (3 knots).

It is forecasted that the system will reach an intensity of 139 km/h (75 knots) and then make landfall on Wednesday along the eastern coast of India, south of Chennai. The landfall will weaken the system which will dissipate as it moves inland by Friday morning.

https://www.windy.com/-Wind-accumulation-gustAccu?gustAccu,9.882,71.719,5,internal

Update: 27th of July 12:30 p.m. UTC

While Douglas remained a strong Category 1 hurricane, all the Hawaiian islands were saved from the direct hurricane force impacts. The hurricane warning for Kauai has been cancelled.

The system is now moving quickly away from Kauai and then farther out to sea at 25 km/h (13 KT) and maximum sustainable winds 62 km/h (33 KT).

Update: 27th of July, 08:00 a.m. UTC

Located near 22.2N 158.0W, Hurricane Douglas continues its movement toward the west-northwest near 26 km/h (14 knots). This motion is expected to continue for the next couple of days. It's forecasted that Douglas will pass near Oahu and Kauai within the next hours.

Maximum sustained winds are near 140 km/h (76 knots) with higher gusts. Weakening is expected, however, Douglas will have a hurricane strength when passing near Oahu and Kauai.

Heavy rainfall associated with Douglas is expected to affect portions of the main Hawaiian Islands on Monday as well as damaging winds, and dangerously high surf.

Update: 26th of July, 10:30 p.m. UTC

Douglas remains a Category 1 hurricane moving west-northwest at 21.2N 155.7W, which places the center of the system east of Maui County.

The maximum sustainable winds are now 138 km/h (75 KT).

Hurricane watches are in effect for Oahu and Kauai County, tropical storm warnings are in effect for Hawaii County and Maui County.

Update: 26th of July, 02:30 p.m. UTC

The center of the Hurricane Douglas is located at 20.5N 153.6W and currently is moving toward the west-northwest near 26 km/h (14 knots). This motion is expected for the next couple of days. The forecast is that Douglas will pass very close to the main Hawaiian Islands later today.

Maximum sustained winds are 150 km/h (81 knots) with higher gusts. Douglas should be slowly weakening within the next 48 hours, but when passing near or over the islands, it will be with hurricane intensity. Hurricane-force winds extend outward up to 35 km from the center.

The close passage of Douglas brings damaging winds, flooding rainfall, and dangerously high surf, especially along east facing shores.

Update: 26th of July, 08:00 a.m. UTC

Hurricane Douglas is currently at 20.1N 152.0W with maximum sustainable winds 148 km/h (80 KT).

Douglas is expected to move near or over portions of the Hawaiian Islands Sunday through Monday. Strong winds, dangerous surf and heavy rainfall could affect portions of the state.

Due to the Douglas nature of approach, it is essential to watch its movement closely as any slight change in its track can result into significant differences.

Hurricane watches have been issued for Oahu, Big Island of Hawaii, Maui County, Lanai, Molokai and Kahoolawe.

Update: 26th of July, 01:00 a.m. UTC

Hurricane Douglas is currently at 19.5N 150.1W with maximum sustainable winds 148 km/h (80 KT).

After it strengthened into a Category 4 hurricane, Douglas is now slowly weakening, moving quickly west-northwest. However reaching land as a hurricane is still a possibility, faster weakening would cause Douglas to strike the islands only as a tropical storm.

Hurricane watches have been issued for Oahu, Big Island of Hawaii, Maui County, Lanai, Molokai and Kahoolawe.

Due to the Douglas nature of approach, it is essential to watch its movement closely as any slight change in its track can result into significant differences.

Update: 25th of July, 02:30 p.m. UTC

Hurricane Douglas, located at 18.7N 147.7W, continues its journey west-northwest near 29 km/h (16 knots). This motion is expected to continue through Saturday with a slight decrease in forward speed and a turn to the west. Maximum sustained winds decreased to 177 km/h (95 knots).

While weakening is forecasted to continue through the weekend it still will be near hurricane strength when it is near the Hawaiian Island.
It is expected that Douglas will reach the Hawaiian Islands Saturday night through Sunday night, passing close or over them. Especially east facing shores should remain prepared for heavy rainfall, landslides and large swells.

Update: 25th of July, 06:30 a.m. UTC

Hurricane Douglas, located at 18.2N 145.9W, continues its journey west-northwest near 31 km/h (16 knots). This motion is expected to continue through Saturday with a slight decrease in forward speed and a turn to the west. Maximum sustained winds decreased to 185 km/h (100 knots). Its force winds extend outward up to 165 km from the center.

While weakening is forecasted to continue through the weekend it still will be near hurricane strength when it is near the Hawaiian Island.
It is expected that Douglas will reach the Hawaiian Islands Saturday night through Sunday night, passing close or over them.

Heavy rainfall, which could result in life-threatening flash flooding and landslides is expected.
Hurricane conditions are possible on the Big Island late Saturday night and Sunday, tropical storm conditions by Saturday evening. These conditions are also over Maui County and Oahu.
Large swells, that could cause life-threatening surf and rip current conditions for a couple of days are expected.

Update: 24th of July, 08:30 a.m. UTC

Hurricane Douglas continues its movement toward the west-northwest near 30 km/h (16 knots), currently located at 15.9N 138.8. Maximum sustained winds have increased to 215 km/h (116 knots).

The motion towards the Hawaiian Islands is expected to continue for the next few days with a gradual decrease in forward speed and a slight turn toward the west.

The forecast indicates that Douglas will be near Hawaiian Island on Sunday possibly bringing strong winds, dangerous surf, and heavy rainfall beginning on Saturday night or Sunday.

Update: 23rd of July, 10:30 a.m. UTC

Currently located at 13.1N 134.0W, Douglas is moving towards the west-northwest near 28 km/h (15 knots). Maximum sustained winds have increased to 195 km/h (105 knots). It is expected to move near or over portions of the Hawaiian Islands this weekend.

Hurricane Douglas is strengthening to become a major hurricane on Friday. This could impact Hawaii, whether it will make direct landfall or not, with heavy rainfall and winds.

Update: 21st of July, 10:30 a.m. UTC

Located at 13.0N 122.8W, Tropical Storm Douglas has become the fourth named cyclone of the 2020 Pacific hurricane season. The maximum sustained winds are 95 km/h (51 knots) and the present movement is 22 km/h (11 knots) towards west-southwest.

Douglas continues to strengthen and it is expected to reach hurricane strength on Wednesday and peak intensity on early Friday morning.

There are no coastal watches or warnings in effect.

https://www.windy.com/-Satellite-satellite?satellite,20.500,-162.389,5,internal

Update 18th September 2.00 p.m. UTC

Valid: Fri 18 Sep 2020 06:00 to Sat 19 Sep 2020 06:00 UTC
Issued: Thu 17 Sep 2020 22:48
Forecaster: PISTOTNIK

A level 3 is issued for a confined area in W Greece for severe convective wind gusts.

A level 1 and level 2 are issued for larger areas of Greece for severe convective wind gusts and excessive convective precipitation.

A level 1 and level 2 are issued for parts of Morocco, Portugal, Spain, S France for excessive convective precipitation, severe convective wind gusts and large hail. In coastal areas, tornadoes are not ruled out.

SYNOPSIS

A blocking anticyclone stretches from the North Atlantic Ocean to Romania. It is flanked to the SW by a cut-off low near Portugal, to the N by a strong zonal flow over Scandinavia, to the NE by another cut-off low in W Russia and to the SE by a suptropical cyclone over the Ionian Sea. Overall, the configuration somewhat resembles an "omega" pattern.
While a surge of polar air advances to the Black Sea in the wake of the eastern cut-off low, very warm air creates still summer-like conditions to the southwest of the axis of highest pressure / geopotential.

DISCUSSION

... Greece and surrounding sea waters ...

The subtropical storm 2020M01 over the Ionian Sea has possibly reached hurricane strength by Thursday evening while it maintains a slow eastward track towards the central west coast of Greece. The Thursday 12 UTC model runs havy largely converged to a track passing between the islands of Zakynthos and Kefalonia shortly before Friday 06 UTC (the beginning of this forecast period). WRF is the only remaining forecast model that still shows a southerly track over the open sea staying slightly southwest of Zakynthos.
Widespread hurricane-force wind gusts (>32 m/s) and extremely intense rainfall are very likely within a few tens of kilometers around the cyclone's center, and this risk extends for at least some hours into the current forecast period. It is not certain whether the innermost rain bands will also be accompanied by thunderstorms - there were only occasional flare-ups of electric activity on Thursday -, but with a few hundred J/kg CAPE in place the chances are high enough to meet our level 3 criteria in a confined area around the expected track of the cyclone's center. In inland areas, the wind risk diminishes betimes, but extraordinary rainfall accumulations, probably exceeding 200 mm in some regions with either prolonged upslope flow or beneath almost stationary and backbuilding rain bands, can easily cause catastrophic and life-threatening flash floods, mudslides and debris flows. Apart from the immediate vicinity of the cyclone center, another hot spot for abundant precipitation with embedded convection is expected to emerge on the northeastern side of the Greek mainland, where very moist and slightly unstable air from the Aegean Sea is persistenly advected against the mountains at the northern periphery of the circulation.
The further fate of the subtropical storm after Fri 12 UTC - either a quick filling over the Gulf of Patras, "disturbed" by the surrounding land mass, or a loop back southward into open sea waters with a slower filling or even partial recovery - will govern how quickly or slowly the wind risk decreases from Friday afternoon onwards, and how large the affected regions will be. The flooding risk is expected to continue into Saturday. For more details and updated information on this subtropical storm, please refer to our experimental 12-hourly Subtropical Cyclone Track and Intensity Forecasts and to the official warnings from the Hellenic National Meteorological Service (HNMS).

... central to S Italy and surrounding sea waters ...

Where not overworked by the subtropical storm, the very warm airmass in the central Mediterranean region features fairly steep lapse rates on top of particularly rich low-level moisture (2m dewpoints often between 20 and 24C). The Thursday 12 UTC soundings from Pratica di Mare, Brindisi and Trapani indicated CAPE between 1500 and 3000 J/kg, rising from north to south.
This CAPE reservoir will largely remain in place on Friday (only gently pushed south by northerly surface winds), but compensating subsidence from the subtropic storm creates a rather strong cap and should mostly suppress convective initiation. At best, only a few short-lived and struggling storms are imaginable over mountains that are high enough to penetrate the cap.

... Iberian Peninsula, France ...

Ahead of the western cut-off low, a fairly strong southerly flow advects steep lapse rates from NW Africa and the Spanish highlands on top of rich coastal moisture. The resulting CAPE will probably reach 1000-2000 J/kg along the Spanish east coast, while some hundred or locally up to 1000 J/kg may also develop further inland, depending on how much moisture can be advected inland and how effective the counteracting mixing processes will be. Increasing mid-level flow drives 0-6 km shear to 15-25 m/s.
The most likely focus for storm initiation are a diffuse cold front and a superimposed mid-level vorticity maximum that cross the eastern half of Spain from SW to NE. Considering a considerable cap, first storms are expected to form either over the mountains or to root down from Altocumulus levels around noon near the western edge of the drawn level 2 area. The CAPE-and-shear overlap allows well-organized storms, including upscale growth into one or several MCSs with a main risk of severe wind gusts at their leading edge(s) and excessive rain. Tail-end storms will most likely move along the east coast or stay just offshore, they can turn supercellular and produce large to very large hail plus one or two tornadoes (considering low cloud bases and enhanced 0-1 km shear in the sea breeze regime).
Convection will gradually weaken after sunset while it spreads into France. If storms stay still surface-based, some severe weather events are also still possible in the French Pyrenees forelands.
The most impressive mid-level wind maximum overspreads SE Spain in the afternoon to evening and creates 0-6 km shear even up to 30 m/s with strongly veering wind profiles. Convection forming in this environment could produce a few extreme hail and wind events. However, the onset of synoptic subsidence makes convective initiation increasingly unlikely by then. Nonetheless, monitoring of this area until the evening is recommended.

Behind the cold front, lapse rates are weaker, but moisture from the Atlantic is advected far inland and daytime heating creates a few hundred J/kg CAPE. Under still enhanced vertical wind shear, scattered and rather low-topped, daytime-driven convection is expected. Ths strongest storms may organize into multi- and perhaps a few supercells and produce heavy rain, isolated severe wind gusts and marginally large hail. Again, a tornado is not ruled out in coastal areas, where cloud bases are lowest.

Update 17th September 10.30 a.m. UTC

A rare Cyclone Ianos is currently moving eastward, toward the Greek western coastal area and should be close to it by Friday morning.
Strengthening is expected within the next 18–24 hours.

Maximum sustained winds are near 90 km/h (48.5 knots) with higher gusts.

Ianos will cause heavy rainfall, up to 400 mm in some areas, which can result in flash floods. Damaging winds are expected across the islands of Zakynthos and Kefalonia and the coastal regions near the Gulf of Patras and the western Peloponnese.
There is a risk of tornadoes developing.

Update 16th September 1.30 p.m. UTC

Valid: Wed 16 Sep 2020 09:00 to Wed 16 Sep 2020 21:00 UTC
Issued: Wed 16 Sep 2020 09:05
Forecaster: ESTOFEX

A Mediterranean convectively-driven cyclone has formed across the Central Mediterranean Sea. At 06 UTC, the Dvorak method for estimating storm intensity yields a T-number between 2.5 and 3. This suggests an approximate central pressure of around 1002 mb and sustained wind speeds of around 20 m/s.

A forecast track and intensity evolution based on a consensus of numerical weather prediction models including GFS, ECMWF and ICON is presented in the graphic.

The models are initially in fairly good agreement and predict a rather quick intensification during the next 36 hours until above hurricane speed, aided by high sea surface temperatures near 27C and a lack of relatively dry air at mid-levels.

The models start to diverge late on Thursday and on Friday when ICON steers the cyclone towards Northwestern Greece, while ECMWF predicts landfall on the Peloponnesos, and GFS keeps the cyclone just offshore before it turns to a southeasterly track.

Regardless of the exact scenario, very high accumulations of rain, locally between 200 and 400 mm are expected across the Peloponnesos and possibly parts of Central Greece and Attica late on Thursday, Friday and Saturday.

https://www.windy.com/-Wind-accumulation-gustAccu?gustAccu,35.165,14.601,6,internal

Update: 19th of December, 10.00 a.m. UTC

Cyclone Yasa, currently located near 21.7S 178.0W, is moving toward the southwest at 15km/h (8 knots).
The system is not directly impacting the island nation of Tonga but it is close enough to bring gale-force winds to the Tongatapu island group.

Maximum sustained winds are 85 km/h (45 knots).

Yasa is expected to steadily weaken throughout the weekend and degenerate into a post-tropical cyclone by the beginning of the next week.

Update: 18th of December, 10.00 a.m. UTC

Yasa, located near 18.6S 178.6W, has rapidly weakened. Moving near 11 km/h (6 knots) southwestward to southward.

Maximum sustained winds are near 139 km/h (75 knots).

It is forecasted that Yasa will steadily weaken.

Update: 17th of December, 9.30 a.m. UTC

Located near 16.30S 178.48E, Yasa has made landfall, earlier than it was expected, on Bua, Vanua Levu, Fiji as Category 4 hurricane-equivalent. The system is moving southeast at 18 km/h (9.7 knots).

The cyclone is forecasted to be located about 25 km west-northwest of Koro or about 130 km north-east of Suva today and about 80 km east of Moala or 230 km east of Suva tomorrow morning.

Fiji's government ordered a nationwide curfew on Thursday. A potentially devastating cyclone is expected to unleash powerful winds and flooding.

Update: 16th of December, 9.30 a.m. UTC

Yasa has significantly intensified to a Category 5 hurricane-equivalent strength. Located near 14.6S 174.1E, the system moves near 11km/h (6 knots).

Maximum sustained winds are 260 km/h (140 knots).

Yasa is expected to weaken before it approaches the main islands of Fiji on Thursday evening. It is forecasted to reach the northern island of Venua Levu on early Friday morning with maximum sustained winds near 220 km/h (120 knots).

Additional weakening is then expected as the cyclone emerges to the south of the islands on Saturday morning.

Update: 15th of December, 10.00 a.m. UTC

Located at 14.9S 173.0E, Yasa has strengthened to a Category 3 hurricane-equivalent. Yasa is slowly tracking eastward at 6 knots and is expected to continue this general motion.

Maximum sustained winds have increased to 105 knots.

Yasa is expected to be near Category 3 hurricane-equivalent as it passes between the main Fijian islands of Viti Levu and Vanua Levu.

Update: 14th of December, 1.00 p.m. UTC

Cyclone Yasa, currently located at 15.7S 172.3 E, is moving toward the west-northwest near 6 km/h (3 knots).

The system is expected to gain strength and reach hurricane-equivalent strength by Tuesday morning and begin to move toward the southeast.
Currently, it is forecasted for Yasa to near Category 3 hurricane-equivalent strength as it passes very narrowly to the southwest of the Fijian island of Viti Levu on Friday night.

The system should not make a direct impact on the island but tropical-storm-force winds and heavy rainfall are possible across portions of the island, affecting the cities of Nadi and Suva.

https://www.windy.com/-Wind-accumulation-gustAccu?gustAccu,-18.448,174.880,6,internal

Update 21th August 1:00 p.m. UTC

Tropical Storm Genevieve was located near 24.3N 114.3W. Currently moving toward the west-northwest near 17 km/h (9 knots) and this motion is expected to continue during the next few days, away from the Baja California peninsula.

Maximum sustained winds are near 85 km/h (46 knots) with higher gusts. Tropical-storm-force winds extend outward up to 130 km/h. Genevieve will continue its weakening and become a tropical depression by tonight.

Large swells generated by Genevieve will continue to affect the coast of the southern and central Baja California peninsula through Friday.

Update 20th August 2:30 p.m. UTC

Located at 23.0N 111.0W Hurricane Genevieve is moving toward the northwest near 13 km/h (7 knots). This motion is expected to continue through Saturday. The center of the hurricane is forecasted to pass just to the southwest and west of the southern portion of the Baja California peninsula today and then move away.

Maximum sustained winds decreased to 130 km/h (70 knots). Hurricane-force winds extend outward up to 45 km.

Further weakening is expected today and throughout the weekend. However, Genevieve will remain a hurricane through today while it passes to the southwest and west of the southern Baja California peninsula.

Hurricane conditions are in effect for the warning area. Tropical storm conditions are occurring over southern Baja California.

Heavy rainfall may lead to life-threatening flash flooding and mudslides. Large swells generated by Genevieve will affect portions of the west-central coast Mexico and the coast of the southern Baja California peninsula.

https://www.windy.com/-Hurricane-tracker/hurricanes?gustAccu,22.999,-115.389,6,internal

Update 19th August 1:30 p.m. UTC

Hurricane Genevieve, located at 20.6N 109.4W, is moving towards the north-northwest with forward speed 15 km/h (8 knots). A turn toward the northwest is expected and this motion will continue through Friday.

Maximum sustained winds are near 185 km/h (100 knots) with higher gusts. Hurricane-force winds extend outward up to 55 km from the center. Genevieve is a category 3 hurricane on the Saffir-Simpson Hurricane Wind Scale. Weakening is expected on Thursday and Friday.

The center of the hurricane is forecasted to move near but just southwest of the southern portion of the Baja California peninsula tonight and on Thursday, then move away on Friday.

Portions of southern Mexico are affected by large swells generated by Genevieve. These swells will spread northward to the Baja California peninsula through Thursday.

Hurricane Watch has been issued for the Baja California peninsula.

Update 18th August 10 a.m. UTC

Located at 17.4N 107.1W, Genevieve is moving near 28 km/h (15 knots) toward the northwest, and this motion parallel to but well offshore the coast of southwestern Mexico is forecasted to continue for the next day or so.

Forward speed should decrease early Thursday. The center of the hurricane is forecasted to move to the southwest of the southern portion of the Baja California peninsula on Wednesday and Thursday.

Maximum sustained winds have increased to ** 185 km/h** ( knots) with higher gusts. Hurricane-force winds extend outward up to 45 km. Hurricane Genevieve has strengthened into hurricane category 3. Additional rapid strengthening is forecasted for the next 12 to 24 hours.

Large swells are affecting portions of the coast of southern Mexico and will spread along the coast of Mexico to the Baja California peninsula by Wednesday. Tropical Storm Warning is now in effect for this area.

Update 17th August 3.00 p.m. UTC

Currently located at 14.3N 103.0W, Genevieve has reached hurricane strength. Hurricane is moving toward the west-northwest near 30 km/h (16 knots), and this motion is expected to continue through tonight. A turn to the northwest and a decrease in forward speed is expected until Tuesday.

Maximum sustained winds are 120 km/h (65 knots) with higher gusts. Hurricane-force winds extend outward up to 35 km from the center.

Genevieve is forecasted to move parallel to but offshore the coast of southwestern Mexico in the following days.

Large swells will begin affecting portions of the southern coast of Mexico today and will spread northward.

https://www.windy.com/-Satellite-satellite?satellite,22.634,-113.302,6,internal

Update: 10th of June, 7:00 A.M. UTC

Post-Tropical Cyclone Cristobal has made its way northward, across Arkansas, Missouri, Iowa, and now located in Wisconsin, 43.5N 90.4W. Maximum sustainable winds are 55 km/h (30 knots) with movement 50 km/h (27 knots).

The expected motion is toward Lake Superior and then to Ontario, Canada.

Flash Flood Watch is now in effect for parts of the Midwest and western Great lakes due to rainfall. Winds gusting over 72 km/h (39 knots) on Wednesday over Chicagoland and areas neighboring with western Great Lakes.

Update: 9th of June, 7:00 A.M. UTC

Tropical depression Cristobal is moving across Central Arkansas, located at 34.8N 92.4W.

With maximum sustained wind speed 45 km/h (24 knots), it's moving toward the north-northwest near 28 km/h (15 knots). It is expected to accelerate over the next 48 hours, transitioning Cristobal into an extratropical cyclone.

Gusty winds are expected on Tuesday night and Wednesday over parts of the Midwest and western Great Lakes. Heavy rainfall will spread from Arkansas to the western Great Lakes through Wednesday morning.

Update: 8th of June, 3:00 P.M. UTC

Tropical depression Cristobal with a position at 32.5N 91.8W continues to push heavy rains with gusty winds on central Gulf to Lower Mississippi Waley. Maximum sustainable winds are 55 km/h (30 KT), movement is 24 km/h (13 KT).

It is expected to bring flooding rain to areas, where heavier rains occur, strong winds with possible isolated tornadoes as it moves from South to the Midwest till Tuesday.

Update: 8th of June, 7:00 A.M. UTC

Cristobal reached the coasts on Sunday evening and hit the southern Louisiana with maximum sustainable winds 80 km/h (43 KT) and heavy rains 12 inches (30 cm).

The storm also caused spawning a tornado in Florida. The landfall was between the mouth of the Mississippi river and island resort of Grand Isle.

Storm is now moving further inland, the threats of heavy rainfall and surge flooding still remains active for Monday as well. Remnants are expected to move northward into the upper Midwest with heavy rain and gusty winds.

Winds have weakened slightly to 72 km/h (39 KT) over the past several hours and this should continue as it moves farther inland.

Update: 7th of June, 3:00 P.M. UTC

Storm Cristobal with maximum sustainable winds 83 km/h (45 KT) will arrive to Gulf Coast today, storm has been travelling at speed of 18 km/h (10 KT).

Warnings for tropical storm and storm surge have been issued already, the threat is heavy rainfall, surge flooding, gusty winds and tornadoes. Tornado watch is issued for the southern Mississippi and southern Alabama.

Storm surges warnings are active for areas from Mississippi River east to Ocean Springs, Mississippi.

Mentioned conditions are expected to preserve till Monday as the storm lingers along the northern Gulf Coast.

Update: 4th of June, 1:00 P.M. UTC

Tropical storm Cristobal is currently located at 17.8N 91.2W, maximum sustained winds decreased to 65 km/h (35 knots). It continues to move slowly inland and is forecasted to re-emerge over the southern Gulf of Mexico on Friday and move northward over the central and northern Gulf of Mexico.

As it will re-encounter a warm ocean surface, it will restrengthen and accelerate northward over the weekend and reach the Gulf Coast of the United States by Sunday evening.

Cristobal made its landfall over 24 hours ago. It has brought damaging and deadly flooding and is expected to produce additional extreme rainfall amounts over southern Mexico and part of the Yucatan Peninsula and extending along the Pacific coast.

Update: 3rd of June, 10:00 A.M UTC

Tropical storm Cristobal which has formed in the southwestern Gulf of Mexico, 19.0N 92.1W, is moving with a pace of 2 knots with maximum sustained wind speed 92,7 km/h (50 knots) and gusts 111,2 km/h (60 knots).

The storm stays in the vicinity of the southwestern Gulf of Mexico for the next few days. It will weaken to a tropical depression on Thursday and intensify to a tropical storm near 19.6N 91.1W on Friday and is expected to move slowly to the U. S. Gulf Coast later this weekend.

Cristobal is a part of a larger Central American Gyre circulation and is expected to continue to bring heavy rainfall to parts of southern Mexico, Guatemala, Honduras, and El Salvador which could bring life-threatening flooding and mudslides.

https://www.windy.com/-Satellite-satellite?satellite,48.807,-91.055,5,internal

Update 23rd September 7:30 a. m.

Located near 43.4N 63.5W, Teddy has become a post-tropical cyclone. The system is moving toward the north-northeast near 30 km/h (16 knots), this general motion is expected to continue for the next day.

The center will move over eastern Nova Scotia later today, and then near or over Newfoundland by tonight, and be east of Labrador on Thursday.

**Maximum sustained winds have decreased to near 120 hm/h (65 knots) with higher gusts. Additional weakening is likely today, however, Teddy will remain a strong post-tropical cyclone when it moves near and over Nova Scotia.

Large swells produced by Teddy are expected to affect portions of Bermuda, the Leeward Islands, the Greater Antilles, the Bahamas, the east coast of the United States, and Atlantic Canada.

Update 22nd of September, 9:30 a.m.

Hurricane Teddy regained its strength and is again a strong Category 2 hurricane currently nearing Nova Scotia, which should start to feel the hurricane conditions in a few hours.

Maximum sustainable winds are now 155 km/h (100 mph).

Teddy is expected to become a post-tropical storm when it approaches the region, bringing heavy rain and strong winds.

Update 21st of September, 9:30 a.m.

Teddy will move east of Bermuda today, affecting the island with tropical-storm-force winds that may lasts till the Monday evening.

Maximum sustainable winds are 155 km/h (100 mph). During the late Tuesday through Thursday, Teddy will affect Atlantic Canada with threat of strong winds and storm surge.

Tropical storm watch is in effect for Nova Scotia and Atlantic Canada.

Update 20th of September, 10.00 a.m.

Hurricane Teddy, located near 28.0N 62.0W is moving toward the northwest near 19 km/h (5 knots). This general motion is expected to continue this morning local time and then a turn toward the north is expected tonight and will last for the next couple of days.
Teddy will approach Bermuda on Sunday night, the center will pass east of the island Monday morning.

Maximum sustained winds are near 185 km/h (100 knots) with higher gusts. Teddy is a category 3 hurricane. Gradual weakening is forecasted for the next day or two but remains a powerful pot-tropical cyclone as it moves near or over portions of Atlantic Canada early next weak. Hurricane-force winds extend outward up to 130 km from the center.

The Leeward Islands, the Greater Antilles, the Bahamas, Bermuda, the east coast of the United States, and Atlantic Canada will be affected by large swells that could cause life-threatening surf and rip current conditions.

Update: 19th of September, 2:00 p.m.

Teddy is positioned about 605 miles southeast of Bermuda and it is expected to move east of Bermuda late Sunday or Monday. The storm is currently packing winds of 205 km/h (125 mph).

Hurricane should become a powerful post-tropical cyclone as it nears parts of Atlantic Canada next week.

Th threats are large swells, that may affect portions of Leeward Islands, Greater Antilles, the Bahamas, Bermuda, east coast of United States and Atlantic Canada.

Located at 21.6N 55.4W, Hurricane Teddy is moving toward the northwest near 19 km/h (10 knots) and this motion is expected for the next couple of days, followed by a turn to the north by early next week.

Maximum sustained winds are near 215 km/h (116 knots) with higher gusts. Right now Teddy is a hurricane category 4. A decrease in strength is expected during the next day. Hurricane-force winds extend outward up to 95 km from the center.

Teddy is expected to approach Bermuda this weekend, being closet to it on Sunday or Monday. The exact details of Teddy's track and intensity are not yet known.

The Leeward Islands, the Greater Antilles, the Bahamas, Bermuda, and the southeastern United States will be affected by large swell which can cause life-threatening surf and rip current conditions.

https://www.windy.com/-Pressure-pressure?pressure,41.607,-75.762,5,internal

As some of you may know, we are working on another project and that is Windy Maps – worldwide offline hiking map, route planner, and sports tracker.

To be able to bring the full experience to as many people as possible, we ask you for your help with translating Windy Maps to other languages.

Text is being Translated via Crowdin, the same platform we are using to translate Windy.com. Crowdin is a user-friendly and easy to navigate through translation tool.

The project is divided into three – Mapy iOS [PROD], Mapy Android [PROD], and Mapy Backend [PROD]. You can participate in one project or all three of them.
To get access to the projects, send an email to mobilni@mapy.cz and mention which project you would like to help translate:

Windy Maps iOS – Mapy iOS [PROD]
Windy Maps Android – Mapy Android [PROD]
Windy Maps Backend – Mapy Backend [PROD]

At the moment we have European languages available and the preferred ones to be translated first are Croatian and Danish.

Manual how to navigate through Crowdin can be found here: https://support.crowdin.com/crowdin-intro

Thank you, we appreciate your help!

Hello @gord-tessier, thank you for considering adding your webcam!

You can do so with this manual – https://community.windy.com/topic/10423/how-to-add-your-webcam-to-windy?_=1606673023648.

Hello @m-c-a, in general, it is hard to forecast the exact path or intensity of cyclones.
You can read for on this here – https://community.windy.com/topic/3709/cyclone-debbie/2.¨

Hello @vivoni, thank you for considering subscribing to Windy Premium!

We don't have a solution for a company account that more people can access to. Account for each member of the team has to be created and subscribed to Premium separately.

I would recommend subscribing through our website, not the application. The payment is made through the platform FastSpring that will automatically create an invoice for you after you finish the payment.

Hello @nooah, here is an explanation of why we display it like this:

Hello @windyduc48, the Australian radar is offline due to another technical issue on our provider's side.
Being subscribed doesn't affect the ability to view the weather radar.

We are sorry for the inconvenience. Once the data is available to us, we will display it.

@hydraulicjump @hydraulicjump, please, contact us at support(at)@windy.com and I will reset your password.

I have some additional question that will help us solve the issue:
– were you previously able to log into Windy on your mobile phone
– in case you were previously able to log in, did the issue occur after you subscribed to Premium
– when you created an account with us, did you do it in the application or on our website
– when was the first time you have registered this issue

@aidzer, I am happy to hear it works for you!

Hello @vytautastr, thank you for supporting us by subscribing to Windy Premium!

To access your Premium features, follow the steps in this manual: https://community.windy.com/topic/11832/what-to-do-if-you-can-t-access-your-windy-premium-features.
Note that the restoration process has to be followed on the device you originally placed an order on.

If the restoration fails, please, let me know in which step it failed and if there was an error message.

Hello @Hammo01, thank you for your feedback!

We don't store any historical data so we are not able to show historical averages for now.

Hello @frobin, thank you for your suggestion, we will take it into account when discussing new features.