Mauna Loa on the Big Island of Hawai’i became active overnight, ending a quiescent phase that started back in 1984 — the longest period of dormancy for this Volcano since the 1800s. The Ash Probability animation above, combining both GOES-17 PACUS and GOES-17 Full Disk imagery (using imagery from this site)... Read More
The Ahyi Seamount is an underwater volcano in the northern Marianas that rises to within 137 m of the Pacific Ocean surface (Click here for more information). VIIRS True-color imagery within the past week shows discoloration in the ocean over the seamount location, suggestive of some sort of eruptive activity. (See this News Article). The image above... Read More
5-minute GOES-16 (GOES-East) “Red” Visible (0.64 µm), Shortwave Infrared (3.9 µm), Fire Power derived product and Fire Temperature RGB images (above) displayed signatures of the wind-driven “Turkey Day” grassland fire in Oglala Lakota County in southwestern South Dakota on 23 November 2022. Peak 3.9 µm infrared brightness temperature (102.53ºC) and Fire Power (1570.84 MW) values were... Read More
1-minute Mesoscale Domain Sector GOES-16 “Clean” Infrared Window (10.3 µm) images (above) include an overlay of GLM Flash Extent Density — which showed rapidly-cooling cloud-top infrared brightness temperatures (and intermittent lightning) over the eastern half of Lake Erie, associated with the initial impulse of lake effect snow (LES) immediately downwind of the lake... Read More
