With the help of a relatively low sun angle, 1-minute Mesoscale Domain Sector GOES-17 (GOES-West) “Red” Visible (0.64 µm) images (above) revealed long shadows cast by peaks of the Alaska Range — especially that of Denali, located in the lower center of the satellite scene — upon the tops of stratus clouds to... Read More

Himawari-8 “Target” infrared imagery at 10.41 µm (above) and 7.35 µm (below) (courtesy JMA, the Japanese Meteorological Agency) show Typhoon Vamco as it crossed the South China Sea on 13 November, approaching Vietnam. Strong convection develops frequently in the region surrounding the not-quite-circular eye (click here for an mp4 animation), and dry air is far... Read More

GOES-16 (GOES-East) “Red” Visible (0.64 µm), Near-Infrared “Snow/Ice” (1.61 µm) and Day Snow-Fog Red-Green-Blue (RGB) images (above) showed a broad swath of fresh snow cover across parts of Nebraska, South Dakota, Iowa, Minnesota, Wisconsin and Upper Michigan on 11 November 2020. The band of heavy snow developed northwest of an intensifying midlatitude cyclone on the... Read More

A toggle between Suomi NPP VIIRS Infrared Window (11.45 µm) and Day/Night Band (0.7 µm) images at 0734 UTC (above) showed Tropical Storm Eta over the Gulf of Mexico (northwest of Cuba) on 10 November 2020. A large convective burst was seen southeast of the storm center, with concentric cloud-top... Read More