On the afternoon of August 6, 2013, the environment around most of the state of Minnesota was poised and ready to produce destructive supercell thunderstorms. Storms first began to fire in the early afternoon, and shortly after the first storms began, a large discrete supercell storm formed near South Dakota/Minnesota border. This storm quickly became severe as it tracked southeast. Though a tornado was never reported, this storm’s rotating nature and destructive capability prompted the National Weather Service to issue several tornado warnings over its life cycle.
The storm held together for over 4 hours, tracked over 200 miles, and was responsible for numerous giant hail reports, including hail up to 3″ reported in Kandiyohi county. The storm approached the Minneapolis/St. Paul area around 7:00 PM CDT, and produced widespread reports of large hail up to 2″ in diameter as well as several reports of damage from high winds.
On the afternoon of March 18, 2013, a long-lived supercell thunderstorm trucked slowly toward Jackson, MS. The storm developed in far southeast Arkansas, dropping hail larger than golfballs through the northeast corner of Louisiana and across the Mississippi River into the northwest side of Jackson. Hailstones up to the size of softballs were reported in Clinton, MS, just northwest of Jackson. The storm strengthened as it got into Jackson, and widespread baseball-sized hailstones were reported all over town. This storm continued its trek southeast before eventually weakening northeast of Laurel, MS. When it was all said and done, many cars, homes, and businesses throughout Jackson were damaged.
In wake of the violent EF-5 tornado that ripped through Moore, Oklahoma, WDT’s Forensic Meteorologists performed a detailed radar analysis of potential path of the storm.
Using Hi-Res Dual-Pol Nexrad radar data, we were able to provide accurate radar derived tornado paths for first reponsders and insurance carrierrs. Within hours of the storm,
WDT had these paths out to the public ensuring those that needed aid recieved it immediately.
WDT also worked with the City of Moore and the National GeoSpatial Intelligence Agency to provide these paths in the planning of six inch resolution aerial imagery the day after the storm.