5-minute CONUS Sector GOES-19 (GOES-East) Water Vapor images (above) included plots of surface pressure contours and surface fronts — which showed the evolution of a strong Nor’easter (Mean Sea Level Pressure anomaly) that produced high winds and/or heavy rainfall from Maryland to Maine (WPC Storm Summary) from 25 September – 27 September 2026. There were a few METAR sites... Read More
As an anomalously-deep low pressure system was moving eastward from the Chukchi Sea to the Beaufort Sea off the northern coast of Alaska (surface analyses), strong southwesterly to westerly surface winds caused inland flooding that led to some road closures in the Utqiagvik (formerly Barrow) area on 12-13 September 2026. 10-minute... Read More
JMA Himawari-9 Ash RGB images created using Geo2Grid (above) showed a major eruption of Anak Krakatau in Indonesia, which began around 1620 UTC on 04 September 2026. A middle-tropospheric volcanic ash cloud (depicted by shades of red to magenta) remained closer to the volcano — while an upper-tropospheric SO2 cloud (shades of... Read More
10-minute Full Disk scan GOES-18 (GOES-West) GeoColor RGB images with an overlay of Next Generation Fire System (NGFS) Fire Detection polygons (above) showed the thermal signature associated with the Mukluk Fire near Tok, Alaska — which began around 1940 UTC on 17 August 2026. With winds at Tok gusting to 20-30 mph, the fire spread... Read More
