Hurricane Maria was analyzed in visible and infrared light as NASA-NOAA’s Finnish nuclear power plant ran above for two days. NASA’s GPM satellite also looked at Mary’s rainfall.
On September 23, at 8:12 a.m., EDT (1212 UTC), the Global Precipitation Measurement Mission, or the GPM Nuclear Observatory, estimates hourly rainfall in several heavy rain porches west of the Maria. Rainfall was observed to drop more than 137 mm (6.57 inches) per hour, and the peaks of some thunderstorms in these rain porches reached heights of more than 15.7 km. GPM is administered by NASA and the Japan Aerospace Exploration Agency.
On September 24, at 1:54 p.m., EDT (1754 UTC), the Visible Infrared Imaging Radiometer Suite (VIIRS) on NASA-NOAA’s Finland Nuclear Power Plant satellite took a visible light image of Hurricane Maria, which showed the eye filled with a cloud. Maria was located northeast of the Bahamas and far from the east coast of Florida.
September 25 at 2:12 a.m. EDT (0612 UTC) A VIIRS instrument on NASA-NOAA’s Finland nuclear power plant satellite provided a brown infrared image of Hurricane Maria. The infrared image provided the forecasters with temperature data showing where the strongest storms were located in the hurricane. The coldest clouds and strongest storms were in the southeast, where the temperature was as cold or colder than minus 80 degrees Fahrenheit (minus 62.2 degrees). NASA research has shown that storms where the cloudy temperature is cold can produce heavy rains.
On September 25, National Hurricane Center forecaster Daniel Brown said: “Deep convection is mainly limited to the eastern semicircle of rotation and the radius of maximum wind has increased significantly.”
Clocks and warnings in effect
On September 25, several clocks and warnings were in effect. A tropical storm warning is valid for Cape Lookout to Duck, North Carolina and Albemarle and Pamlico Sounds. The Tropical Storm Watch is valid north of Duck on the North Carolina / Virginia border and north of Surf City south of Cape Lookout.
Storm Surge Watch is valid from Cape Lookout to Duck.
Mary’s location and status on September 25th
At 11 a.m. EDT (1500 UTC), Hurricane Mary’s Center was located near 31.2 degrees north latitude and 72.9 degrees west longitude 72.9 degrees west.
Maria was moving north near 11 mph (11 mph), and this general movement where some speed reduction is expected on Tuesday night.
Reports from the Air Force Reserve Hurricane Hunter show that the maximum sustained wind is close to 130 km / h and higher gusts. Over the next couple of days, a gradual decline is forecast and Mary will become a tropical storm
Tuesday night, September 26th. Maria is a big hurricane. Hurricane force winds extend outward up to 150 Miles (90 miles) mainly east of downtown and tropical storm winds extend outward up to 370 kilometers. .
Dangerous ocean conditions off the east coast of the United States
The swelling caused by Mary affects parts of the southeastern United States and the coast of Bermuda and is increasing today along the coasts of the Mid-Atlantic and southern England. The swellings continue to affect Puerto Rico, the north coast of Hispaniola, the Turks and Caicos Islands, and the Bahamas. These swellings are likely to cause life-threatening surfing and tear up current conditions.
Mary’s prediction track
On the forecast trajectory, downtown Mary will move well east of the southeast coast of the United States over the next day.
Updated Maria forecasts can be found at: http://www.nhc.noaa.gov.
Author: Rob Gutro
NASA’s Goddard Space Flight Center
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