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Mission Statement

SAB Areal Tropical Rainfall Potential

The Satellite Analysis Branch (SAB) of NOAA's National Environmental Satellite, Data, and Information Service produces an experimental graphical representation of the forecast Tropical Rainfall Potential (TRaP) for any tropical system in the Western Hemisphere and many in the Eastern Hemisphere. This is an objective analysis done by taking the latest microwave Rain Rate data from the Defense Meteorological Satellite Program's Special Sensor Microwave Imager (SSM/I), the NOAA-15 Advanced Microwave Sounder Unit (AMSU), or the NASA Tropical Rainfall Measuring Mission (TRMM) and performing an extrapolation of the rain rate values based on the latest forecast track and speed. Official forecast bulletins issued by the NOAA National Hurricane Center and Central Pacific Hurricane Center for the Western Hemisphere and the Joint Typhoon Warning Center (JTWC) for the Eastern Hemisphere are used in performing the extrapolations. This can be done for Tropical Depressions, Storms, and Hurricanes/Typhoones/Cyclones. Read about limitations of the Microwave TRaP technique.

Click on a Basin to view the latest TRaPs for that Basin:

Atlantic East Pacific Central Pacific South East PAcific South East Pacific South West Pacific SouthEast Indian South West Indian North Indian North West Pacific NT

LAST MODIFIED: November 20, 2004 at 16:35 UTC
Authors: Daniel Blake, Brian Hughes, and Nancy Merckle
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