GOES-16 (GOES-East) SO2 RGB and Ash RGB images (above) showed a remnant volcanic cloud from the 31 October Klyuchevskaya eruption as it moved over southern Saskatchewan, northern North Dakota and far northwestern Minnesota on 06 November 2023. The volcanic cloud exhibited brighter shades of orange-yellow in the SO2 RGB imagery, and darker shades of blue in the... Read More

JMA Himawari-9 Ash RGB images created using Geo2Grid (above) showed the complex transport of Kyluchevskaya volcanic plumes — which were a mixture of ash (shades of pink to red-orange) and SO2 (brighter shades of yellow) — during the 3-day period from 31 October to 02 November 2023. Much of the transport... Read More

GOES-18 (GOES-West) Dust RGB images (above) showed a plume of resuspended volcanic ash (brighter shades of violet) from Mount Aniakchak, which was being lofted by strong SE winds — gusting as high as 45 knots at Port Heiden — and transported NW across Bristol Bay on 26 October 2023. A Volcanic Ash Advisory was issued at... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) “Clean” Infrared Window (10.3 µm) images (above) showed Hurricane Otis as it approached the coast of Mexico, making landfall near Acapulco (Acapulco International Airport, METAR identifier MMAA, is located about 16 miles southeast of the city center) around 0625 UTC on 25 October 2023. During the 11-hour time period shown,... Read More