Severe Weather

Many regions in the world experience severe weather such as thunderstorms, hail, tornadoes, and blizzards every year. Severe weather usually comes with heavy precipitation and causes unexpected hydrometeorological hazards, such as floods or landslides, which can affect thousands of people, posing a threat on life and property. T

GPM DPR overflight of Hurricane Henri 22 Aug 2021
In the North Atlantic, the tropical system known as Henri reached hurricane status on Saturday, August 21, 2021. At the time, it was approaching a landfall in New England. Between Friday and Sunday, Henri was observed three times by the Dual-frequency Precipitation Radar (DPR) on the core satellite of NASA's Global Precipitation Measurement (GPM) mission. The GPM satellite's first two flyovers of Henri occurred just 10 hours apart and revealed a remarkably unchanging structure that was being impacted by wind shear. A third overflight occurred a day later, when wind shear had abated and Henri
IMERG precipitation over China for July 17 to 28, 2021
During July 17 to 28, 2021, several storm systems brought heavy rain to parts of China and surrounding countries, while a nine-month-long drought persists in an adjacent part of China. NASA's multi-satellite precipitation algorithm has been monitoring this rainfall in near real-time, and the estimates are distributed to weather-forecasting agencies and disaster-monitoring organizations. This algorithm is called IMERG, the Integrated Multi-satellitE Retrievals for GPM. GPM is the NASA / JAXA Global Precipitation Measurement mission, which launched its Core Observatory satellite in 2014. Two
Arizona GPM DPR Convective Storm 3D View 2021 July 15
There is a monsoon that occurs in the southwestern U.S. each summer, and it brought heavy rain to the deserts of Arizona this week. This monsoon is less well known than India's Summer Monsoon, but both monsoons have similar causes [1, 2, 3]. In western Mexico and the southern edge of the southwest U.S., most of the year's rain typically falls in just three months: June, July, and August. The region is shown in light blue in the below climate map, which shows where summer rainfall predominates (Figure 1). This seasonal pattern is known as the North American Monsoon. The map was generated using
IMERG Sees Winter Storms Impact the Southern U.S.
In mid-February 2021, large areas of the Continental United States experienced extreme cold temperatures as a result of a strong Arctic high pressure system. The cold temperatures were accompanied by several pulses of precipitation over the Southeast US through the mid-Atlantic, as well as the Pacific Northwest. The combination of cold temperatures and precipitation resulted in widespread power outages to millions of people in Texas, Kentucky, West Virginia, and Oregon, among other states.