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Severe March 7-8 severe threat

3KM NAM shows the front moving through pretty quick, even before noon tomorrow. This should limit what was already lacking instability. The below is from the HSV AFD this morning showing the same.
“The latest CAMs and the NAM show
some significant uncertainty in the timing of this front, with some
having it move through as early as mid-morning, or as late as the
afternoon and evening hours. This system is working with minimal
instability as it is, and with a morning frontal passage, there might
even be a good chance we only see a few rumbles of thunder, with a
significantly lower severe threat. If the front passes across the
area later in the day, we may develop enough instability ahead of the
front for a few stronger storms that could produce some damaging
wind. Vertical wind profiles would support damaging winds, but with
them being fairly unidirectional, the threat for tornadoes is pretty
low.
1646590319533.png
 
Gonna be interesting to see how today plays out.
17z hrrr has some fairly impressive updraft helicity and shows a few hours of discrete supercell potential across northern AR into western TN/KY late afternoon.C5F869B0-763D-4506-B921-B9630967E7B1.pngEA3E0DBB-65BB-44C8-A1CD-A5BE4E9BBEA4.png
 
Multiple tornado warnings still going across southern MO/northern AR. Looks like some line embedded supercells near the cold front.988E9392-7705-4944-92A0-E70C1ABE9C7B.png
 
Lot of shear overhead in the clouds zipping in two different directions the clouds are racing. Should be good setup for at least some severe for western NC
 
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