GPM satellite obtains excellent views of Beryl's remnants

July 10, 2018 by Rob Gutro / Hal Pierce, NASA's Goddard Space Flight Center
The GPM core satellite passed above the remnants of Beryl again on July 9, 2018 at 8:41 a.m. EDT (1241 UTC) as bands of rain were moving over Puerto Rico. Very heavy rain was occurring in a small area along Puerto Rico's southeastern coast. Intense storms there were measured by GPM's radar dropping rain at a rate of over 81 mm (3.2 inches) per hour. Credit: NASA/JAXA, Hal Pierce

As the remnants of former tropical cyclone Beryl moved through the northern Leeward Islands and Puerto Rico, the Global Precipitation Measurement mission or GPM core satellite gathered important rainfall data on the storm.

NASA's GPM core observatory satellite recently had two excellent views of Hurricane Beryl's remnants. GPM flew above on July 8, 2018 at 7:26 p.m. EDT (2326 UTC) when Beryl's remnants were passing through the Windward Islands.

Harold Pierce of NASA's Goddard Space Flight Center in Greenbelt, Maryland, used GPM data to create images and animations of the rainfall and cloud heights in the storm. Pierce said, "Beryl's remnants still contained areas of strong convective storms as it passed near the island of Dominica. GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments showed that strong convective storms northeast of Dominica were dropping rain at a rate of greater than 75 mm (2.95 inches) per hour. "

Dominica is still recovering from Hurricane Maria which devastated the island last year. Most of the homes on Dominica were damaged or destroyed.

The GPM core satellite again passed above the remnants of Beryl again on July 9, 2018 at 8:41 a.m. EDT (1241 UTC) as bands of rain were moving over Puerto Rico. That satellite pass showed that overall rainfall intensity was much lower but very heavy rain was occurring in a small area along Puerto

NASA's GPM core observatory satellite recently had two excellent views of Hurricane Beryl's remnants. GPM flew above on July 8, 2018 at 7:26 p.m. EDT (2326 UTC) when Beryl's remnants were passing through the Windward Islands. GPM strong convective storms northeast of Dominica were dropping rain at a rate of greater than 75 mm (2.95 inches) per hour. Credit: NASA/JAXA, Hal Pierce

Rico's southeastern coast. Intense storms there were measured by GPM's radar dropping rain at a rate of over 81 mm (3.2 inches) per hour.

At NASA Goddard, Pierce used the GPM satellite's radar (DPR Ku Band) data to create a 3-D structure of precipitation within Beryl's remnants. A few of the most powerful convective storms in the Windward Islands were found by DPR to reach heights of about 16 km (9.9 miles).

GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency, JAXA.

Beryl's Remnants Now Over Hispaniola

At 8 a.m. EDT on July 10, the National Hurricane Center (NHC) noted that Beryl's remnants were affecting Hispaniola, the island that contains Haiti and the Dominican Republic. At that time, remnants of Beryl were producing gusty winds and areas of heavy rain over portions of central and eastern Hispaniola, and the adjacent Atlantic and Caribbean waters.

NASA's GPM core observatory satellite recently had two excellent views of Hurricane Beryl's remnants. GPM flew above on July 8, 2018 at 7:26 p.m. EDT (2326 UTC) when Beryl's remnants were passing through the Windward Islands. GPM strong convective storms northeast of Dominica were dropping rain at a rate of greater than 75 mm (2.95 inches) per hour. Credit: NASA/JAXA, Hal Pierce

The NHC forecast calls for the system to move west-northwestward across the rest of Hispaniola today and over the southeastern Bahamas this evening. NHC forecasters said "Little development is expected during the next day or so due to land interaction and unfavorable upper-level winds. The disturbance is forecast to turn northward over the western Atlantic on Wednesday where upper-level winds could become a little more conducive for the regeneration of a tropical cyclone later this week. Regardless of development, locally heavy rains and gusty winds are likely over portions of Hispaniola and the Bahamas as the remnants of Beryl move through those areas."

Beryl's remnants have a low chance to regenerate over the next two days, but over the next five days, that chance increases.

Rip Currents, Waves, Winds Affecting Puerto Rico

On Tuesday, July 10, 2018, the National Weather Service in San Juan, Puerto Rico issued a Hazardous Weather Outlook for Puerto Rico and the adjacent Atlantic Coastal Waters. Sustained winds, choppy seas and rip currents are possible.

Across the regional waters and across coastal areas of northern and southern Puerto Rico, including Vieques and Culebra, the NWS expects sustained winds in excess of 20 mph.

Hazardous seas up to 8 feet expected across the offshore Atlantic and Caribbean waters as well as across the Mona Passage. Choppy seas up to 6 feet expected across the nearshore waters. There is a high risk of across the northwest beaches of Puerto Rico, and a moderate risk exists across the rest of the local beaches, except the west coast.

Explore further: NASA satellite tracking remnants of ex-Tropical Cyclone Beryl

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