NASA-NOAA's Suomi NPP satellite provided a look at Maria's temperatures to find the strongest sides of the storm, while NOAA's GOES satellite revealed the extent of the storm in a visible image as it moved toward the Bahamas.
On Sept. 22 at 3:18 a.m. EDT (0718 UTC) the VIIRS instrument aboard NASA-NOAA's Suomi NPP satellite provided a thermal image of Hurricane Maria north of Hispaniola and nearing the Bahamas.
The image showed highest coldest clouds around the eyewall and in bands of thunderstorms to the northeast and south and southeast of the center, stretching over Hispaniola and Puerto Rico.
At 5:04 a.m. AST/EDT the National Weather Service (NWS) in San Juan, Puerto Rico reported those bands of thunderstorms were still dropping heavy rain.
NWS noted "Some locations that are or will experience flooding include San Juan, Ponce, Arecibo, Yauco, Fajardo, Guayama, Coamo, Jayuya, Adjuntas, Santa Isabel, Canovanas, Sabana Seca, San Sebastian, Naranjito, Humacao, Mayaguez, San German, Lajas, Hatillo and Penuelas."
Flood warnings are in effect until 5:45 p.m. EDT today, Friday, September 22, 2017.