The coldest temperature in the United States (including Alaska) was -33 F (-36 C) at Alamosa, Colorado on 03 January 2013. AWIPS images of 375-meter resolution (projected onto a 1-km AWIPS grid) Suomi NPP VIIRS 11.45 µm IR data with METAR surface reports... Read More
The Suomi/NPP Day/Night Band “nightime visible” image early on 2 January captured a rope cloud extending over the central Gulf of Mexico southwestward from the northwest Florida panhandle. Rope Clouds are handy features because they accurately place the location of the cold front at the leading edge of the rope... Read More
AWIPS images of 1-km resolution Suomi NPP VIIRS 0.7 µm Day/Night Band data (above) served as “visible images a night” to reveal the formation of a mesoscale vortex that was moving southward over the northern portion of Lake Superior (northwest of Caribou Island, station identifier CWCI) at 07:01 UTC (2:01... Read More
Strong westerly to northwesterly winds in the wake of a departing winter storm were aiding in the formation of widespread mountain waves along and downwind of the Appalachian Mountains on 27 December 2012. A comparison of AWIPS images of 1-km resolution Suomi NPP... Read More
