Mesoscale Discussion 1391
NWS Storm Prediction Center Norman OK
0143 AM CDT Tue Aug 04 2020
Areas affected...North Carolina/Virginia border into southeast
Concerning...Tornado Watch 414...415...
Valid 040643Z - 040815Z
The severe weather threat for Tornado Watch 414, 415 continues.
SUMMARY...Several tornadoes are possible over the near term along
the North Carolina/Virginia border and into southeastern Virginia.
DISCUSSION...A long-lived, arcing band of supercells remains intact,
now crossing the NC/VA border extending from North Hampton to
Pasquotank counties in NC as of 0640Z.
The environment ahead of these supercells will remain favorable for
tornadoes, with a very moist air mass already in place, and
continued warm advection out of the southeast. The AKQ VWP shows 0-1
SRH over 300 m2/s2, which greatly supports strong rotation.
The advancing tropical cyclone will maintain lift with intense
pressure falls, with additional bands of supercells possibly
...Please see www.spc.noaa.gov for graphic product...
LAT...LON 36637569 36297622 36447660 36647699 36697738 37047766
37247739 37287707 37157634 36977597 36637569