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GPM Sees Carlos Moving Past Reunion Island

GPM Sees Carlos Moving Past Reunion Island
The GPM core observatory satellite flew above tropical cyclone Carlos on February 7, 2017 at 1056 UTC. Carlos was moving past Reunion Island with maximum sustained winds estimated at 45 kts (51.8 mph). GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) data show that rain bands west of Carlos' center were producing heavy rainfall. GPM's DPR swath is shown in a lighter shade. DPR measured a few downpours in the bands west of the Carlos' center of circulation dropping rain at a rate of over 120 mm (4.7 inches) per hour. GPM's radar (DPR Ku Band) found that a few storm tops

Tropical Storm Carlos Forms

Tropical Storm Carlos Forms
Tropical storm Carlos formed in the Southwest Indian Ocean north of the French Islands of Reunion and Mauritius on February 4, 2017 (UTC). This ended an unusual drought of tropical cyclone formation in that part of the Indian Ocean that began in July 2016. NASA's GPM core observatory satellite flew above tropical storm Carlos on February 5, 2017 at 1056 UTC when Carlos had maximum sustained winds of about 45 kts (51.8 mph). GPM collected data that showed the intensity and structure of precipitation within Carlos. GPM's Dual-Frequency Precipitation Radar (DPR) measured rain falling at a rate of

GPM Sees Possible Tropical Cyclone Developing Near Australia

GPM Sees Possible Tropical Cyclone Developing
So far this year no tropical cyclones have developed in the Southwest Indian Ocean. The Joint Typhoon Warning Center (JTWC) recently warned that a low moving westward over northwestern Australia may soon become a tropical cyclone. Warm Indian Ocean waters and low vertical wind shear are providing a good environment for tropical cyclone development. The GPM satellite flew over northwestern Australia on January 25, 2017 at 2351 UTC. GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) measured precipitation within strong convection in the Indian Ocean northwest of the lows

Mudslides & Flooding Produced By Extreme Rainfall Over Southern California

Mudslides & Flooding Produced By Extreme Rainfall Over Southern California
It is sunny in southern California today but recent unusually heavy rainfall led to rock slides, mudslides and flooding in that part of the country. Rainfall of almost 4 inches (101.6 mm) in one day was reported in Long Beach, California. Some highways in the area were flooded due to intense downpours. Rainfall since the fall of 2016 has improved drought conditions over northern California but Southern California has been slower to improve because of the exceptional rainfall deficit in that area. NASA's Integrated Multi-satellitE Retrievals for GPM (IMERG) were used to estimate the total

Atmospheric River Slams California

Atmospheric River Slams California
Monday, January 23, 2017
After more than four years of drought, Californians may wonder where the current rain is coming from. Using satellites, NASA scientists have a unique view of the sources of precipitation, and how it reaches the western United States. Rain is often carried by narrow tendrils of moisture called atmospheric rivers that occur all over the world, shown here in white. The atmospheric rivers that affect the western United States are known as the Pineapple Express because they transport water vapor from as far south as Hawaii to California. When the moisture reaches land, it is forced up over the...
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