Lake effect clouds (producing light snow) in North Dakota
GOES-19 (Preliminary/Non-operational) Day Cloud Phase Distinction RGB images (above) — created using Geo2Grid — displayed “lake effect” clouds (shades of white) streaming southeast off the Missouri River and Lake Sakakawea in northwestern North Dakota on 25 November 2024. Snow cover appeared as shades of green, with bare ground appearing as shades of blue. A smaller cloud plume was seen streaming southeast off Devils Lake (in northeastern North Dakota).GOES-16 Near-Infrared “Snow/Ice” images (below) included 15-minute plots of METAR surface reports — which showed brief periods of light snow at Hazen (KHZE) and Bismaeck (KBIS). Note the cold air — having temperatures in the single digits to teens F — that was flowing across the still-unfrozen reservoirs of the Missouri River (in addition to Devils Lake).