Hurricane Season 2010: Tropical Storm 1S (Southwestern Indian Ocean)

Tropical Storm 1S Hanging Onto Tropical Storm Status

The TRMM satellite passed over Tropical Depression 1S in the southwestern Indian Ocean at 1050 UTC (6:50 a.m. EDT) on Oct. 26 and measured light to moderate rainfall within the system. The yellow and green areas indicate moderate rainfall between .78 to 1.57 inches per hour.

(Image Credit: NASA/SSAI, Hal Pierce) Tropical Storm 1S is maintaining tropical storm strength as it continues on its track in a south-southwesterly direction through the Southern Indian Ocean.

On Oct. 27 at 0900 UTC (5 a.m. EDT), Tropical Storm 1S had maximum sustained winds near 39 mph, the threshold for tropical storm strength. It was far away from land areas, some 825 nautical miles southeast of the island of Diego Garcia, near 12.5 South and 85.1 East. It was encountering a stronger vertical wind shear, so it has been unable to strengthen and is going to start running into cooler waters will which further reduce its chance to intensify.

Text Credit: Rob Gutro

NASA Goddard Space Flight Center, Greenbelt, MD