To the CIMSS Inbox, From to the Alaska Ice Desk:I noticed what I think are a pair of mesoscale convective vorticies forming on a boundary in the southeastern Beaufort Sea between the Mackenzie River Delta and the ice pack where there's still open water. I don't think there's much impactful... Read More

High Pressure over the Great Lakes on 25 April meant a spectacular true-color view of the 5 Great Lakes (apologies to Lake Champlain) by the VIIRS instruments on NOAA-20. A similar view was recorded at 1755 UTC by Suomi-NPP, shown below.Clear skies also meant a determination of Lake Surface Temperatures, shown below (compare these to Monday,... Read More

The animation above shows true-color imagery from the CSPP Geosphere site (direct link to animation). Of particular interest is the cloud band that forms along the western shore of Lake Michigan, especially near Chicago, and north of Milwaukee. The toggle below of the True Color imagery and Cloud Top Height suggests the cloud tops are... Read More

Imagery from the CSPP Geosphere site, above (link to animation), shows a curiously static low cloud (click here to see mp4 of cloud heights) separating from clouds along the southern shore of Lake Michigan and subsequently moving north. For several hours the cloud persists, until it moves under cirrus streaming in from the west, at which point it dissipates rapidly. The... Read More