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As Hurricane Melissa passed over Jamaica on Oct. 28, 2025, NASA’s IMERG algorithm provided near real-time estimates of rainfall using data from an international constellation of satellites united by the GPM Core Observatory. The below animation of IMERG precipitation rates and accumulations shows data from Oct. 23 through Oct. 29, revealing that central Jamaica received an estimated 18–24 inches of rain, much of it falling on the 28th. These satellite-based estimates were broadly consistent with the National Hurricane Center’s forecast, which anticipated 20–30 inches of rain due to the storm’s

After forming into a hurricane in the central Atlantic on the morning of Friday August 15 th, Hurricane Erin underwent a period of extremely rapid intensification as it was passing northeast of the Leeward Islands, becoming a powerful Category 5 storm and the most rapidly deepening hurricane in the Atlantic before the month of September. Last year in early October in the then Gulf of Mexico, Hurricane Milton became the fastest Atlantic storm to intensify from a tropical depression to a Category 5 storm. Erin originated from an African easterly wave that emerged off the coast of Africa on the 9

RAIN Global Viewer Regional Animations of IMERG in Near-realtime - Global Edition Visualize and animated near-realtime NASA IMERG satellite precipitation estimates. NOTE: This app is intended to be viewed on a large computer monitor. Click Here to view Fullscreen

NASA's Worldview website now allows you to explore global estimates of rainfall and snowfall from 1998 to the present at 30-minute intervals. Researchers and application developers have been using this dataset since 2014 (Portier 2024; Portier et al. 2023), but now it is also available as images in Worldview.

Over the fourth of July weekend, the Texas Hill Country was devastated by a powerful flash flood event. River levels rose rapidly, on the order of 20 feet or more in 1 to 2 hours or less, all along the upper part of the Guadalupe River. The main flood event started overnight and continued throughout the morning of July 4, resulting in widespread destruction, hundreds of water rescues, many deaths, and numerous people still reported as missing. The Hill Country can be susceptible to flash floods as water tends to run off rather than being absorbed by the soil and plants. The culprit for this