5-minute CONUS Sector GOES-19 (GOES-East) Visible images with an overlay of GLM Flash Extent Density (above) showed the signature of a high-altitude bolide that was moving from southwestern Lake Erie toward far northern Ohio during the 5-minute period ending at 1301 UTC on 17 March 2026. This bolide created a sonic boom that was... Read More
1-minute Mesoscale Domain Sector GOES-19 (GOES-East) Visible and Infrared images with time-matched plots of SPC Storm Reports (above) showed thunderstorms that produced several tornadoes and numerous reports of hail — most notably, as large as 6.10″ in diameter near Kankakee, Illinois at 2328 UTC. If verified, that would be the largest hailstone on record for... Read More
5-minute CONUS Sector GOES-19 (GOES-East) Visible and Infrared images (above) showed a supercell thunderstorm that developed in northern Indiana and tracked northeast across far southern Lower Michigan on 06 March 2026. This thunderstorm formed in the vicinity of a warm front (surface analyses) that was moving northward across the region — surface plots indicated... Read More
5-minute CONUS Sector GOES-19 (GOES-East) Mid-level Water Vapor (6.9 µm) images (above) showed the evolution of a large and intense Nor’easter that produced as much as 37.9 inches of snowfall in Rhode Island (a preliminary State record) and wind gusts as high as 84 mph in New York (WPC Storm Summary) during the 22 February... Read More
