On Feb. 14, the MODIS instrument that flies aboard NASA’s Aqua satellite provided a visible image of re-formed Tropical Cyclone Francisco heading for landfall in east-central Madagascar.

On Feb. 14, the Moderate Resolution Imaging Spectroradiometer or MODIS instrument that flies aboard NASA’s Aqua satellite provided a visible image that showed the storm had re-developed a rounded shape with bands of thunderstorms spiraling into the low-level center. A more rounded shape of a tropical cyclone indicates it is becoming a more organized storm.

Satellite imagery shows a compact system with strong thunderstorms persisting over the low-level circulation. In addition, satellite microwave imagery indicates deep convective banding of thunderstorms over the western semicircle wrapping into the north and east quadrants of a defined low-level circulation center.

On Feb. 14 at 4 a.m. EST (0900 UTC), the Joint Typhoon Warning Center (JTWC) noted that Francisco’s maximum sustained winds powered back up to 40 knots (46 mph/74 kph). Francisco re-formed near latitude 19.0 degrees south and longitude 49.3 east, approximately 114 nautical miles east of Antananarivo, Madagascar. Francisco has tracked southwestward.

Meteo Madagascar issued a Red Vigilance Advisory for heavy rain over central and eastern Madagascar that includes Toamasina, Brickaville, Mahanoro, and the Vatomandry Districts.

The JTWC forecast said the system is expected to make landfall later today over the southeast coast of Atsinanana Region, close to Vatomandry City. That is far to the south of the coastal city of Toamasina. Francisco is expected to weaken steadily as it tracks inland and dissipate sometime on Feb. 15 over land.

NASA’s Aqua satellite is one in a fleet of NASA satellites that provide data for hurricane research.

Tropical cyclones/hurricanes are the most powerful weather events on Earth. NASA’s expertise in space and scientific exploration contributes to essential services provided to the American people by other federal agencies, such as hurricane weather forecasting.

For updated forecasts from Meteo Madagascar, visit www.meteomadagascar.mg

Rob Gutro
NASA’s Goddard Space Flight Center

https://www.windy.com/-Wind-accumulation-gustAccu?gustAccu,-21.596,37.222,5,internal

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On January 27 at 4:05 a.m. EST (0905 UTC), the MODIS instrument aboard NASA’s Aqua satellite provided a visible image of the remnant clouds of former Tropical Cyclone Esami in the Southern Indian Ocean.

Tropical Cyclone Esami formed on January 24 at 4 p.m. EST (2100 UTC) about 764 miles east-southeast of Port Louis, Mauritius. Esami’s maximum sustained winds peaked the next day on Jan. 25 at 45 knots (52 mph/83 kph).

On January 26 at 4 p.m. EST (2100 UTC), the Joint Typhoon Warning Center issued their final warning on Tropical Cyclone Esami. At that time, Esami had weakened to a depression with maximum sustained winds near 30 knots (34.5 mph/55.5 kph). It was located near latitude 29.8 degrees south and longitude 77.9 degrees west, about 1,260 miles east-southeast of Port Louis, Mauritius. The depression was moving to the south-southeast and was dissipating.

When NASA’s Aqua satellite passed over the Southern Indian Ocean on Jan. 27 at 4:05 a.m. EST (0905 UTC), the Moderate Resolution Imaging Spectroradiometer or MODIS instrument provided a visible image that revealed the remnants of Esami were dissipating.

Typhoons and hurricanes are the most powerful weather events on Earth. NASA’s expertise in space and scientific exploration contributes to essential services provided to the American people by other federal agencies, such as hurricane weather forecasting.

Rob Gutro
NASA’s Goddard Space Flight Center

Related content

• What’s the difference between a hurricane, typhoon, cyclone and tornado
• What is the difference between sustained winds and wind gusts

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