Hurricanes

The GPM core observatory recently had a couple good looks at tropical storm Walaka as it was intensifying into a powerful hurricane. GPM passed directly over tropical storm Walaka when it was located south of the Hawaiian islands on September 30, 2018 at 8:38 AM HST (1838 UTC). Data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments showed that Walaka was well organized and very close to hurricane intensity. GPM's Radar (DPR Ku Band) data revealed intense convective storms in a large feeder band that was wrapping around the tropical storm's

The GMI overflight here shows a clear center of circulation with much of the intense convection on the south side of Hurricane Rosa, a Category 1 storm with winds of 75 knots. It is expected to continue intensifying over the next couple days before it runs into strong shear and cooler waters off the Baja California coast. Forecasts suggest it will make landfall in Northern Baja as a tropical storm, with its primary impacts being heavy rainfall and flash flooding over the Desert Southwest.

Over the weekend #HurricaneFlorence brought torrential rains and record flooding to the Carolinas. This GPM IMERG visualization shows storm-total accumulated rainfall on the left for 9/12/18 - 9/17/18 vs. a sequence of 3-hour accumulations on the right https://t.co/numzHJXzb2 pic.twitter.com/pzAgkVrRXl — NASA Precipitation (@NASARain) September 17, 2018 After making its way across the Atlantic, Florence, a once powerful Category 4 hurricane with maximum sustained winds reported at 140 mph by the National Hurricane Center (NHC), finally made landfall early Friday morning at around 7:15 am EDT

Last Friday Florence was a sheared tropical storm but on Saturday vertical shear lessened and Florence started to get better organized. Today hurricane Florence is rapidly strengthening. The National Hurricane Center (NHC) predicts that Florence will be a major hurricane with maximum sustained winds peaking at 130 kts (~150 mph) on Wednesday when it is over the open Atlantic well southwest of Bermuda. The NHC predicts that Florence's winds will decrease slightly to 125 kts (144 mph) as the hurricane threatens the southeastern United States on Thursday September 13, 2018. OVERPASS 9/9/18: View

Hurricane FLORENCE became more powerful over the past few days while moving through the central Atlantic Ocean. Wind speeds increased from tropical storm force to hurricane force on Tuesday. FLORENCE's maximum sustained winds were about 85 kts (98 mph) early today making it a category two hurricane on the Saffir-Simpson Hurricane wind scale. Hurricane FLORENCE is being steered toward the northwest by the Atlantic subtropical ridge. Early next week the National Hurricane Center (NHC) predicts that hurricane FLORENCE will have moved to a location southeast of Bermuda. The GPM core observatory

View Fullscreen in STORM Event Viewer Battling increased vertical shear, Hurricane Lane struggles northward, down from its Category 5 peak but still featuring winds of over 110 knots. The storm has already begun impacting the Hawaiian Islands, bringing over a foot of rain to Hilo via its outer bands. Lane is expected to continue northward, approaching the island chain, before slowly veering westward as it continues to lose strength. This weakening will not diminish its likely primary impacts, which will be intense coastal erosion and damage and torrential rainfall, upwards of 30 inches in some

View Fullscreen in STORM Event Viewer Direct strikes on Hawaii by tropical cyclones are relatively rare, but Hurricane Lane is poised to buck that trend if the models are to be believed. At the time of this overflight, Lane had maximum sustained winds of 130 knots and featured a symmetrical eye in the GMI data with intense precipitation rates on both east and west sides of the tight circulation. Its impacts are likely to start with flooding, especially on the island of Hawaii. High surf and strong winds will also have an impact, although the locations of maximum intensity will be determined by

The GPM core observatory satellite flew over hurricane LANE on August 21, 2018 at 7:48 PM PST (August 22, 2018 at 0548 UTC). At that time LANE was located about 316 nautical miles (585.2 km) from Hilo, Hawaii. Hurricane LANE is one of the strongest tropical cyclones to move into the Hawaiian Islands. At the time of this GPM pass LANE was a category five on the Saffir-Simpson hurricane wind scale with winds of about 140 kts (161 mph). This analysis shows precipitation derived from data collected by the GPM satellite's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR)

Hurricane LANE had moved westward into the central Pacific Ocean far southeast of the Hawaiian islands when the GPM core observatory satellite passed above on August 19, 2018 at 1643 UTC. LANE had intensified and had maximum sustained winds reaching about 105 kts (~ 121 mph) at that time. This made it a category three on the Saffir-Simpson hurricane wind scale. The GPM satellite's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments provided highly accurate information about precipitation within the hurricane. GPM's GMI revealed rainfall coverage and GPM's radar (DPR

View fullscreen in STORM Event Viewer Heavy rainfall and towering cloud heights were the findings when Hurricane Lane was scanned by the Global Precipitation Measurement mission or GPM core observatory satellite on Aug. 17. Lane strengthened to a Category 2 hurricane on the Saffir-Simpson Hurricane Wind Scale. GPM passed above Lane in the Eastern Pacific Ocean on Aug. 17, 2018, at 1:26 a.m. EDT (0526 UTC). Lane was intensifying and data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments revealed the location of its forming eye wall. Very heavy