News Column

NASA's TRMM satellite spots heavy rainfall around Tropical Storm Arthur's center

July 16, 2014

By a News Reporter-Staff News Editor at Defense & Aerospace Week -- Tropical Storm Arthur appears to be ramping up, and NASA'sTropical Rainfall Measuring Mission or TRMM satellite spotted heavy rainfall occurring around the storm's center on July 1 when it was centered over the Bahamas.

Those heavy rains are expected to affect the southern U.S. coastline over the next several days as the National Hurricane Center expects Arthur to strengthen into a hurricane. On July 2, the NHC issued a Hurricane Watch for Bogue Inlet to Oregon Inlet, North Carolina and Pamlico Sound. In addition, a Tropical Storm Watch is in effect for the east coast of Florida from Sebastian Inlet to Flagler Beach, South Santee River South Carolina to south of Bogue Inlet, North Carolina, north of Oregon Inlet, North Carolina to the North Carolina/Virginia Border, and the Eastern Albemarle Sound.

The TRMM satellite had a good daylight look at tropical storm Arthur on July 1, 2014 at 1620 UTC (12:20 p.m. EDT) less than two hours after it was upgraded from a tropical depression. At NASA's Goddard Space Flight Center in Greenbelt, Maryland rainfall from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) data were overlaid on a GOES-East satellite infrared/visible image taken at 1626 UTC (12:26 p.m. EDT). The TMI instrument showed very heavy rainfall around Arthur's center. The heaviest rainfall was occurring at a rate of about 2 inches per hour. Powerful thunderstorms in that area reached heights above 15.5 km (about 9.6 miles).

Shortly after TRMM flew over Arthur and gathered rainfall and cloud height data, NASA's Terra satellite captured a visible image of the storm over the Bahamas. The image, created by the NASA Goddard MODIS Rapid Response Team, used visible data from the Moderate Resolution Imaging Spectroradiometer instrument that flies aboard Terra. The image showed a concentration of powerful storms around the center and northwestern quadrant of the storm. Arthur's western quadrant continued to affect the east coast of Florida.

Keywords for this news article include: Aerospace, NASA/Goddard Space Flight Center, Government Agencies Offices and Entities.

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Source: Defense & Aerospace Week

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