CIMSS research scientist Rich Dworak sent along a sequence of NOAA-20 VIIRS Day/Night Band images (above) that included satellite-derived Atmospheric Motion Vectors — which depicted an anomalously deep polar low just north of Greenland during the 25-26 May 2026 period.Another feature of interest seen in the Day/Night Band imagery was the breakup... Read More

10-minute Full Disk scan GOES-18 (GOES-West) Infrared and Water Vapor images (above) showed the evolution of a mountain wave cloud south of the Brooks Range in northern Alaska on 01 March 2026. The coldest cloud-top infrared brightness temperatures were -61C (darker shades of red).A toggle between GOES-18 Water Vapor and Infrared... Read More

VIIRS Infrared images from Suomi-NPP and NOAA-21 (above) showed widespread ice leads (brighter shades of cyan) in the Beaufort Sea during the 3-day period from 10-12 February 2026 — with a notable increase in ice leads across the eastern Beaufort Sea.Surface wind stress was the primary influence affecting the motion... Read More

VIIRS Infrared images from Suomi-NPP and NOAA-21 (above) showed widespread ice leads in the Chukchi Sea during the 3-day period from 06-08 January 2026. A combination of surface wind stress and ocean currents influenced the motion and evolution of these ice leads.Surface analyses (below) showed a tighter pressure gradient across the... Read More