From: NASA HQ
Posted: Wednesday, July 29, 2015
On July 29, 2015, at 05:00 UTC (1 a.m. EDT), NASA's Terra satellite captured this image of Tropical Cyclone 02B in the northern Bay of Bengal. Credits: NASA Goddard's MODIS Rapid Response Team
An area of low pressure has been lingering in the Bay of Bengal for days before it finally developed into a tropical storm. As Tropical Storm 02B formed, NASA's Terra satellite passed overhead and captured an image of the storm that showed it extended over Bangladesh, northeastern India and mostly over the northern Bay of Bengal.
On July 29 at 05:00 UTC (1 a.m. EDT), NASA's Terra satellite passed over Tropical Cyclone 02B in the northern Bay of Bengal. The Moderate Resolution Imaging Spectroradiometer or MODIS instrument captured a visible-light image of the storm that filled up the northern Bay of Bengal. The center of the storm's circulation was apparent in the image, located over the extreme northern Bay of Bengal, and just south of Chittagong, Bangladesh. The MODIS image revealed that the northern quadrant of the storm was mostly devoid of clouds, and the bulk of clouds and showers stretched from the eastern quadrant, south and to the western quadrant.
At 0900 UTC (5 a.m. EDT) on July 29, 2015, Tropical Storm 02B had maximum sustained winds near 35 knots (40 mph/62 kph). It was centered near 21.2 North latitude and 91.4 East longitude, about 70 nautical miles south-southwest of Chittagong, Bangladesh. It was moving to the northeast at 3 knots (3.4 mph/5.5 kph).
The Regional Specialised Meteorological Centre in New Delhi, India noted that the northern part of the system is interacting with dry air which accounts for the lack of clouds in that quadrant as seen in the MODIS imagery.
The Joint Typhoon Warning Center forecast calls for 02B to move north before making landfall and dissipating.
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