Parts of Virginia and North Carolina are currently under a severe thunderstorm watch as a major multi-part winter storm system formed as a result of a receeding early season polar front from earlier this month colliding with still warm and wet airmasses coming up from the Gulf is bringing snow to the northeast and bands of severe thunderstorms in the Midsouth, with elevated risk for supercells maturing after dark.
Historically, December has seen a major elevated risk for 'maxed out conditions' occurring on the southeastern dry line between polar air masses from the north and warm Gulf tropical inflow along with high altitude shear that continue to feed supercell systems into maturity well after daylight hours. Two of the most costliest and longest track tornadoes in US history, the Mayfield and Rolling Fork F4/F5s, occurred in December. Residents of the Southeast and Midsouth are advised during this time of year to keep track of weather updates and livestreams of storm chasers in the region who operate mobile Dopplar radars.
Historically, December has seen a major elevated risk for 'maxed out conditions' occurring on the southeastern dry line between polar air masses from the north and warm Gulf tropical inflow along with high altitude shear that continue to feed supercell systems into maturity well after daylight hours. Two of the most costliest and longest track tornadoes in US history, the Mayfield and Rolling Fork F4/F5s, occurred in December. Residents of the Southeast and Midsouth are advised during this time of year to keep track of weather updates and livestreams of storm chasers in the region who operate mobile Dopplar radars.
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