Satnews Daily
September 30th, 2009

Here's Looking @ Earth: Depressing Depressions


There are now four tropical cyclones stirring in the Western Pacific: Ketsana, 18W, 19W and now Tropical Depression 20W. The 20th tropical cyclone of the Western Pacific Ocean formed in the overnight hours of September 28 to 29.

Tropical depression 20W (NASA Aqua)

On Tuesday, September 29th, at 11:00 a.m. EDT, Tropical Depression 20W(TD20W) had maximum sustained winds near 34 mph and was located 820 miles east-southeast of the island of Saipan. That's near 10.5 north and 158.9 east. TD20W was moving west-northwest near 13 mph, and was generating waves 9 feet high. On its current track, TD20W threatens to bring heavy rains and gusty winds to the Federal States of Micronesia. It is expected to intensify into a tropical storm on its track over the next several days. NASA's Aqua satellite flew over Tropical Depression 20W shortly after it was "born" on September 28 at 10:17 p.m. EDT (September 29, at 2:17 UTC) and the AIRS instrument captured a visible image of it coming together. (Text credit: Rob Gutro, NASA/Goddard Space Flight Center)