An unusually-large derecho event formed over Kansas during the pre-dawn hours on 08 May 2009, and then moved rapidly eastward across Missouri and Illinois during the morning hours. GOES-12 10.7 µm IR window images (above) showed the large areal coverage of cold... Read More

Water vapor imagery from the GOES-11, GOES-12, and GOES-13 satellites (above) showed the spin-up of a well-defined “stratospheric intrusion vortex” over western Kansas on 14 March 2009. The imagery from each of those 3 satellites is displayed in its native projection, which... Read More

GOES-12 visible (daytime) and 3.9 µm shortwave IR (night-time) images (above) showed a distinct swirl of clouds drifting northward across the Gulf of Mexico on 13 November – 14 November 2008. This cloud... Read More

AWIPS images of the GOES-12 6.5 µm “water vapor” channel (above) showed the development of late-season winter storm that produced heavy snowfall and blizzard conditions (with wind gusts to 64 mph or 29 m s-1 at Rapid City SD) across the Black Hills region and surrounding portions of eastern Wyoming,... Read More