NASA Captures Isaias Twice Along East Coast

After forming into a tropical storm in the eastern Caribbean, Isaias crossed over Hispaniola and back into the western Atlantic heading northwest toward the Bahamas. During this time, Isaias strengthened into a Category 1 hurricane before then passing through the southern and central Bahamas. As it crossed Andros Island in the central Bahamas, Isaias also came under the effects of southwesterly wind shear, which together with the land interaction caused Isais to weaken back to a strong tropical storm.

After regaining hurricane intensity over the Gulf Stream, Hurricane Isaias made landfall on the south coast of North Carolina on Monday, Aug. 3, at 11:10 p.m. EDT near Ocean Isle Beach. This animation, using NASA’s IMERG rainfall product, shows Isaias as it makes its way northward from the Bahamas to the coast of North Carolina. With IMERG, precipitation estimates from the GPM core satellite are used to calibrate precipitation estimates from microwave and infrared sensors on other satellites to produce half-hourly precipitation maps at 0.1-degree horizontal resolution. After making landfall, Isaias continued tracking northward over eastern North Carolina in response to a large upper-level trough located over the eastern half of the U.S.

Video credit: NASA's Goddard Space Flight Center
Ryan Fitzgibbons (USRA): Lead Producer
Alex Kekesi (GST): Lead Visualizer
Stephen Lang (NASA/GSFC): Lead Writer
George Huffman (NASA/GSFC): Lead Scientist
Scott Braun (NASA/GSFC): Lead Scientist

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