A large pyroCumulonimbus (pyroCb) cloud developed from the Mallard Fire in the Texas Panhandle on 11 May 2018, aided by warm temperatures and strong winds ahead of an approaching dryline (surface analyses).  1-minute Mesoscale Domain Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm), Shortwave Infrared (3.9 µm) and “Clean” Infrared Window (10.3 µm) images (above) showed the large thermal... Read More

1-minute Mesoscale Sector GOES-16 (GOES-East) “Red” Visible (0.64 µm) and “Clean” Infrared Window (10.3 µm) images (above) showed the southward propagation of a pre-cold-frontal trough axis (surface analyses) which appeared to play a role in enhancing ongoing convection — some thunderstorms then produced weak tornadoes, damaging winds and hail over parts of South Florida... Read More

An outbreak of severe weather occurred across parts of the Mid-South, Ohio Valley and mid Mississippi Valley on 03 April 2018. A GOES-16 Mesoscale Sector provided images at 1-minute intervals — “Red” Visible (0.64 µm) images (above) and “Clean” Infrared Window (10.3 µm) images (below) include plots of SPC storm reports.Looking farther to the southwest over parts... Read More

GOES-16 data posted on this page are preliminary, non-operational and are undergoing testingOctober is typically not a month when tornadoes are expected in Wisconsin. (And in fact, the month ranks fourth in the numbers of fewest tornadoes nationwide). Nevertheless, a brief tornado occurred on the east side of Madison WI late in the afternoon on 7 October (NWS Milwaukee/Sullivan). The visible... Read More