GPM analyzes rainfall in Bahamas from potential Tropical Cyclone 9

GPM analyzes rainfall in Bahamas from potential Tropical Cyclone 9
The GPM core satellite passed over developing Potential Tropical Cyclone 9 on Sept. 13 at 2:26 a.m. EDT (0726 UTC). GPM found the heaviest rainfall (pink) northwest of the center where it was falling at a rate of over 40 mm (about 1.6 inch) per hour. Lighter rainfall rates (yellow and blue) were measured throughout the rest of the storm. Credit: NASA/JAXA/NRL

As the Bahamas continue to recover from Category 5 hurricane Dorian, a new developing tropical cyclone is bringing additional rainfall to an already soaked area.

The Global Precipitation Measurement mission or GPM core satellite provided a look at those rainfall rates occurring in Potential Tropical Cyclone Nine, located over the Bahamas.

Potential Tropical Cyclone 9 developed around 5 p.m. EDT on Thursday, Sept. 12. At 11 a.m. EDT on Sept. 13, the depression triggered watches and warnings from NOAA's National Hurricane Center. A Tropical Storm Warning is in effect for the northwestern Bahamas excluding Andros Island and a Tropical Storm Watch is in effect from Jupiter Inlet to the Flagler-Volusia County line, Fla.

Watches and warnings are already in effect. A Tropical Storm Warning is in effect for the northwestern Bahamas excluding Andros Island and a Tropical Storm Watch is in effect from Jupiter Inlet to Flagler-Volusia County line, Fla.

The GPM or Global Precipitation Measurement mission's core satellite passed over Tropical Depression 9 on Sept. 13 at 2:26 a.m. EDT (0726 UTC). GPM found the heaviest rainfall northwest of the center where it was falling at a rate of over 40 mm (about 1.6 inch) per hour. GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency, JAXA.

NOAA's National Hurricane Center noted at 2 p.m. EDT (1800 UTC), the disturbance was centered near latitude 25.4 degrees north and longitude 74.2 degrees west. The system is expected to resume a slow motion toward the northwest and north-northwest later in the day. Maximum sustained winds are near 30 mph (45 kph) with higher gusts. The disturbance is forecast to become a or a tropical later today or Saturday.

The potential tropical cyclone is expected to produce total rainfall accumulations through Sunday in the Bahamas of up to 2 to 4 inches, with isolated maximum amounts 6 inches. The U.S. Southeast Coast from central Florida into South Carolina can expect from 2 to 4 inches.

On the forecast track, the system is anticipated to move across the central and northwestern Bahamas today, and along or near the east coast of Florida Saturday and Saturday night.


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More information: For updated forecasts, visit: http://www.nhc.noaa.gov
Citation: GPM analyzes rainfall in Bahamas from potential Tropical Cyclone 9 (2019, September 13) retrieved 17 May 2022 from https://phys.org/news/2019-09-gpm-rainfall-bahamas-potential-tropical.html
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