- Wind Speed and Directions are always comes as wrong: please compare with real-time observations; Windy just plots on maps model forecasts provided by weather centers, it doesn't compute any forecast. Moreover, model forecasts computed on grids with 25 km / pixel resolution cannot be too precise over mountain/valley areas, where wind forecast values are particularly hard to predict.
- How we can understand 3 to 4 hrs ago that a specific cloud will come to a specific place?: just watch the forecast for next 3-4 hours (use the time bar).
- What is meant by >240 in this map: which data layer did you selected on that screenshot?
- No one replying: please, next time you post a question on such a community site, wait a bit more than 6 minutes for an answer...
Best posts made by vsinceac
RE: A Complaint & some Questions about Map.
RE: Visibility layer is not accurate
This discussion (as well as many other community discussions, e.g. this one), makes me thinking that adding a collection of 3rd party, pertinent URLs to Windy UI would be really helpful to many users (and to Windy, too).
Of course such a 3rd party web sites are not intended to replace, nor to compete with Windy.com.
A good sample is the link provided in comment just above, which is for a web site specialized in dust forecast, provided by a research laboratory.
Windy.com has not the required resources to (and should not) compete with big research laboratories (e.g. official WMO product providers), but could advantageously provide such a pertinent list to its users; I guess everybody would win...
Such a pertinent URLs list may be pretty long, thus items may be grouped by category (e.g. "Weather Alerts", "LRF Models", "NWP Models Data Providers", "Local Forecasts Europe/NA/Asia/country/Etc)", "Satellite Imagery", etc.).
Its appearance may be also as discrete as needed (e.g. placed in the main Menu, just after Windy Plugins), in order to not change current look and feel of Windy UI.
Of course each URL link could and should have a full description (e.g. as OnMouseOver tooltip).
Btw., such a link to OSM Community web site could save a lot of time to both users and administrators and avoid all these long and boring posts about missing roads or wrong country names on Windy maps...
Moreover, as Windy has many occasional or permanent users and part of them are meteorologists, forecasters, pilots, I guess many of them would be happy to propose and share pertinent URLs which would be really helpful to users with less knowledge in these domains.
Btw., the community discussions already contain a pretty big collection of links to pertinent 3rd party web sites...
WMO observing network contains both ships (voluntary observing ships or part of GTS network) and buoy stations.
Some met offices even use drones, turtles, whales, etc. as support for ocean weather sensors...
Buoys are generally static, ships are generally moving; both of them should have a series of standard weather sensors defined by WMO and provide messages of type SHIP or BUOY (which are extensions to the more generic SYNOP mesages). Ogimet web site (for example) provides part of them here (screenshot below).
WMO/GTS naming rules of all ocean observing stations are defined here.
RE: Add warm and cold weather fronts
Windy only displays real time observations and values computed in weather forecast models, while fronts are not present in the latest.
Fronts are only drawn by expert forecasters in very specific weather forecast messages (e.g. SIGWX), based on the human analysys of different data sources: deterministic and ensemble weather models, real time observations (SYNOP/TEMP/etc.), satellite remote sensing and even climatological data and local knowledge. Such a message is only provided by specialized regional or national weather centers and cannot be computed by algorythms with enough accuracy.
Enter the keyword fronts in the Search control to get more info from community discussions related to this topic.
See also this article, which says: Frontal analysis in modern forecasting is still a critical part of a forecaster’s toolkit, and not just because fronts are often associated with precipitation. Fronts can strongly impact local weather conditions via wind changes, convective forcing, turbulence and more. While many computer-based weather visualization packages can identify frontal zones on the large scale, they usually lack nuance in positioning of the front on the regional and local scales, which poses issues for short-range forecasting of all kinds, especially aviation. Additionally, a thorough examination of surface observations to create a hand-analysis of surface pressure systems and fronts, even if not truly completed “by hand” and instead in a 3D mental model space, allows the forecaster to become intimately familiar with the current weather in a way that examining a computer frontal analysis cannot. Situational awareness is gained, as well as conceptual awareness of synoptic processes, mesoscale processes, storm-scale processes and topographic influences that are interacting to create the “wiggles” one sometimes sees in a front’s position. These wiggles, or surges, can be caused by outflow from an MCS merging with the larger synoptic scale cold front, are sometimes powered by a secondary push of cold air that has mixed down from upper levels, and for other reasons. Although it takes more time up front in the forecast process, the knowledge gained from this analysis process often makes the rest of the forecast process go much faster - many extraneous pressure level charts of basic state variables can be skipped and the forecaster can go directly to regional and local scale variables of interest to address the forecast problems of day.
RE: Results from pointing to a map location
Both bearing and distance implies two points/positions; pointing to a map location is only one point, which displays its coordinates.
Distance is available on "Distance and Planning" feature.
Or well did I missed something?
RE: How to tell what time of day it is?
Servers are usually synchronized with time servers (e.g. https://www.meinbergglobal.com/english/productinfo/time-server.htm).
RE: Between India and Bangladesh, There a little Glith.
This is not a bug and couldn't be fixed; it is the result of merging products from different satellites in order to get a worldwide mosaic.
The "long line" is just the border between different coverage areas of sensors installed on different geostationary satellites.
See more details in this related topic.
RE: Option to set default view.
Can’t I just set a preferred view and have it saved?
Yep, I think such a new feature, i.e. kind of option "keep currently enabled data overlays on next user sessions" (and why not current map coverage, too?), would be welcome for many use cases. At least for users who often use same data layers and/or map coverage...
RE: Have you seen Windy on your local TV Channel? Let us know!
Yet another weather web site ("Friendly Forecast", they say), full of ads, where almost all weather maps are picked from windy.com: https://www.friendlyforecast.com/AU/New-South-Wales/Kempsey/Moparrabah/Marine/.
Should they maybe pay a fee to Windy.com? :o)))
RE: El cambio climático y Windy
Providing Long Range Forecast (LRF) for weather should remain out of the scope of honest, public weather sites like Windy, as it would require huge scientific and computational effort.
There are many so-called "Almanacs" that boast of providing weather forecasts over months or even years: none of them are trustworthy.
A good sample for such an Almanac is here (ouch! they even use Windy widgets :o))); as one can see, it is rather kinda horoscope...
RE: Can isobars switch be a setting?
Even more useful would be to get isolines rendering option to all pertinent data layers (not only pressure), and also to be also able to configure isolines interval value (like for color shading palettes), for each parameter.
RE: Sugestion about more than 1 wind altitude level for pilots/sim pilots
Just select "Wind".
Color shading rendering of wind speed forecast data overlay, as well as particles animation and values provided on a given position follow well currently selected level:
RE: New feature for Distance & planning: being able to add waypoint in the middle of the existing line, and link waypoint to a date
You can add as many intermediate points as you want by just clicking directly on the route on map canvas; they are automatically inserted in the route plan on the bottom side.
You can also save a route via Route Detail control (on the left side of the route plan panel); it has options Share, GPX, KML, Reverse Route.
RE: What source of weather data Windy use?
As said in my previous post above, if forecasts and satellite image layers are displayed together on map, there would be a bug: they cannot be contemporary (excepted at full hours, maybe).
Satellite images are provided every 10 or 15 minutes; Windy should obtain that worldwide mosaic by merging images from differrent satellites, taken at small time difference (a couple of minutes or so, but surely not hours).
When combining satellite and atmospheric pressure layers together on map, then playing the animation over the whole available period on timebar (i.e. last 2, 6 or 12 hours), one can see that the pressure layer remains static over the whole period, while satellite images layer change at each time step...
Thus the pressure isobars layer doesn't follow current value on timebar as expected, which is wrong from my pov.
Having a static pressure isobars layer combined with animated satellite images would be useful for some specific deep analysis, but in such a case the validity time of the static layer should be clearly displayed on UI (I was not able to find it).