48 hours of 5-minute CONUS Sector GOES-19 (GOES-East) Water Vapor images that included hourly plots of surface weather type (above) showed the development of a winter storm that produced up to 19.5″ of snowfall and wind gusts as high as 64 mph in eastern North Carolina (storm summary) — and even... Read More
5-minute CONUS Sector GOES-19 (GOES-East) Visible images (above) showed the development of at least 2 mesolow circulations in southern Lake Superior (off the coast of Upper Michigan) on 29 January 2026. The combination of Fixed Buoy and METAR surface reports implied that there was convergence over the portion of the lake... Read More
Due to a lack of radar coverage over American Samoa, WSO Pago Pago requested a 1-minute Mesoscale Domain Sector over the islands to monitor convective development and the potential for flash flooding. GOES-18 (GOES-West) Clean Infrared Window (10.3 µm) images (above) showed rain showers and thunderstorms that developed in the general vicinity of the American Samoa... Read More
1-minute Mesoscale Domain Sector GOES-18 (GOES-West) Infrared and Visible images (above) included plots of GLM Flash Points — which showed an area of convection that produced thundersnow with 1/4 mile visibility at Grant, New Mexico (KGNT), and prompted the issuance of a Special Weather Statement with mention of a snow squall affecting areas that... Read More
