5-minute CONUS Sector GOES-19 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

5-minute CONUS Sector GOES-19 (GOES-East) Water Vapor images (above) included hourly plots of surface weather type (R=rain, S=snow, ZR=freezing rain, L=drizzle, F=fog) during the 4-day period (23 January – 26 January 2026) that a major winter storm impacted much of the southern and eastern US. According to the WPC storm summary, some notable storm statistics included: 23″... Read More

As a strong arctic cold front moved southward across the Gulf of Mexico toward southern Mexico on 25-26 January 2026, the cold front fractured as it moved inland across Mexico’s Isthmus of Tehuantepec — the cold air was then channeled southward through Chivela Pass and emerged as a Tehuano (or... Read More

A major winter storm was brewing over most of the eastern continental United States over the weekend of 24-25 January 2026. At one point during the weekend, 185 million people were under some kind of National Weather Service-issued winter weather alert, with warnings for winter storms, ice storms, extreme cold,... Read More