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) SO2 RGB and Ash RGB images (above) showed the complex transport of a volcanic cloud produced by an explosive eruption of Mount Shishaldin that began around 1350 UTC on 03 October 2023. The bulk of the higher-altitude volcanic cloud was rich in SO2 (shades of yellow in both RGB types), while a smaller mid-level portion that had... Read More

1-minute Mesoscale Domain Sector GOES-18 (GOES-West) Dust RGB images (above) showed a plume of resuspended ash (brighter shades of pink) from the 1912 Novarupta-Katmai eruption in Alaska, which was being transported offshore across the Shelikof Strait toward Kodiak Island on 27 September 2023. Surface volcanic ash within the Valley Of Ten Thousand Smokes.was being lofted by strong northwesterly winds.Volcanic ash (VA)... Read More