GOES-13 visible imagery (above) showed  an undular bore that was propagating southward across the Florida peninsula  on 17 March 2009. This bore feature appeared to play a role in the initiation of a line of convective clouds that developed over central and... Read More

The first tornado-related fatalities of the 2009 severe weather season occurred during a tornado outbreak that affected parts of Texas and Oklahoma (SPC storm reports) on 10 February – Read More

A strong thunderstorm which produced heavy rain and frequent lightning was apparently a factor in triggering a power blackout that affected the Hawaiian island of Oahu for at least 12 hours, beginning on the evening of 26 December 2008 — in fact,... Read More

Hat-tip to blog reader Boris Konon for sending us this in an email:Noted a large area of extremely cold cloud tops on a thunderstorm complex over northern Australia 17-23z 11/22.  So cold it went off our IR color table scale we use here at WSI for MTSAT!MTSAT-1R Infrared (10.8... Read More