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From: Dan Richter (1:317/3)
To: All
Date: Thu, 08.04.21 13:00
MODIS Pic of the Day 08 April 2021
April 8, 2021 - Tropical Cyclone Seroja


Tropical Cyclone Seroja

On April 4, 2021, Tropical Cyclone Seroja formed over the Savu Sea in
eastern Indonesia, bringing heavy rain, wind, and storm surge to
Timor-Leste and southern Indonesia. Although the storm did not carry
severe winds at the time, heavy rain triggered landslides and flash
flooding which has caused significant damage and death in the region.
The United Nations Office for Coordination of Humanitarian Affairs
(OCHA) report on ReliefWeb on April 7 that at least 113 people have
died and dozens more are missing due to the storm. Twenty-seven deaths
were reported in Timor-Leste, where over 10,000 people have been
adversely affected by the storm. The presidential palace, in Dili, was
characterized in this report as “a mud pit”. Eighty-six people were
killed in Indonesia and 71 remain missing and over 2,600 are affected
by flash flooding and landslides, with substantial damage to roads,
bridges, and households.

At 11:00 p.m. EST on April 7 (0300 UTC April Cool, the Joint Typhoon
Warning Center (JTWC) stated that Tropical Cyclone Seroja was located
442 miles (711 km) north of Learmonth, Australia and was tracking
west-southwestward. Maximum sustained winds registered at 63 mph (101.4
km/h) and the storm appeared to be consolidating with deepening
convection noted.

The JTWC expects Tropical Cyclone Seroja to reach peak strength of 127
mph (204 km/h) on April 11. That would place it as a Category 3 storm
on the Saffir-Simpson Hurricane Wind Scale. It is predicted to meet
strong windshear and cooler sea surface temperatures shortly after that
time, forcing a turn towards Australia. The unfavorable conditions
should weaken Seroja before it makes landfall in southwestern Australia
by April 12. After landfall, Seroja is expected to rapidly weaken.

The Moderate Resolution Imaging Spectroradiometer (MODIS) on board
NASA’s Terra satellite acquired a true-color image of Tropical Cyclone
Seroja on April 7 as it was spinning northwest of Australia. At that
time the storm was beginning to consolidate and strengthen after
causing severe damage in Indonesia and Timor-Leste.

Image Facts
Satellite: Terra
Date Acquired: 4/7/2021
Resolutions: 1km (2.3 MB), 500m (6.4 MB), 250m (4.5 MB)
Bands Used: 1,4,3
Image Credit: MODIS Land Rapid Response Team, NASA GSFC

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