The loop above shows the window channel (11 micron) imagery from the night of 15 July over Nebraska. (Also plotted: METARS, lightning, and the UWCI product) An isolated convective storm — identified accurately by the UWCI algorithm — developed over central Nebraska near local midnight. There were no severe reports... Read More
Severe thunderstorms that developed in the vicinity of a stationary frontal boundary over the northern Texas Panhandle region on 12 June 2010 produced unusually large hailstones (some as large as 5.5 to 6.0 inches in diameter) — additional details of this event can be found at the NWS Amarillo TX website. AWIPS images of... Read More
A convective system over Texas spawned a Mesoscale Convective Vortex (MCV) during the day on 2 June, as shown in the 1.5-day loop above (color-enhanced GOES-13 11-micron imagery shown every 12 hours). The convection along the dryline at 0615 UTC on 2 June evolved into the MCV shown at 1815... Read More
On yet another relatively rare SPC “High Risk” Convective Outlook day, a major outbreak of damaging tornadoes occurred across parts of Oklahoma and Kansas on 10 May 2010 (see: SPC storm reports | NWS Norman OK | NWS Witchita KS). McIDAS images of the GOES-13 0.63 µm visible channel data (above) showed the development of numerous long-track supercell thunderstorms across the southern... Read More
