GOES-18 True Color imagery during the day on 7 April, above, shows the development of a standing wave downwind of the elevated topography on the Aleutian peninsula between King Salmon and Perryville. (Note also the faint signal of volcanic ash as discussed here) What atmospheric conditions support the development of... Read More
10-minute Full Disk scan GOES-18 (GOES-West) True Color RGB images created using Geo2Grid (above) showed a von Kármán vortex street — created by north-northwesterly winds interacting with the western tip of Nelson Island, Alaska — propagating south across the Bering Sea on 20 March 2025. In addition, through breaks in cloud cover the tidal... Read More
Imagery from the VIIRS Today website, shown below, shows the stark effects of the Lunar Eclipse on Day Night Band imagery. Suomi NPP and NOAA-20 passes over the east coast (shown below; it happened with NOAA-21 too!) lack the reflected moonlight that was available over the central/western United States after the lunar eclipse... Read More
A sequence of Suomi-NPP VIIRS Visible images (above) showed the formation of large ice leads in the eastern Beaufort Sea — as well as the growth of a polynya adjacent to the coast near the Alaska/Yukon border — during the 5-day period from 07-11 March 2025.Suomi-NPP VIIRS Shortwave Infrared images... Read More
