5-minute CONUS Sector GOES-18 (GOES-West) Infrared images viewed using RealEarth (above) displayed deep convection (with intermittent GLM-indicated lightning activity) that moved across the Hawaiian island of O’ahu on 20 March 2026 — producing heavy rainfall and flash flooding.The first Flash Flood Warning for O’ahu on that day was issued at 0857 UTC,... 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
While Chicago O’Hare recently retook the crown of the country’s busiest airport in terms of number of flights, Atlanta’s Hartsfield-Jackson International Airport (ATL) continues to have the largest number of passengers. A great number of those ATL passengers were significantly inconvenienced on the evening of 6 March 2026 as a... 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
