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URGENT - IMMEDIATE BROADCAST REQUESTED
Tornado Watch Number 480
NWS Storm Prediction Center Norman OK
735 PM EDT Tue Aug 31 2021
The NWS Storm Prediction Center has issued a
* Tornado Watch for portions of
Extreme north-central North Carolina
Western and central Virginia
* Effective this Tuesday night and Wednesday morning from 735 PM
until 300 AM EDT.
* Primary threats include...
A couple tornadoes possible
Isolated damaging wind gusts to 70 mph possible
SUMMARY...One supercell formed and quickly became tornadic in the
Blacksburg area in the past hour, and overall tornado potential
should increase through the evening. The threat should spread
northeastward over the watch area, as additional thunderstorms
develop in a favorably unstable air mass and interact with a
warm-frontal zone, where low-level shear is maximized.
The tornado watch area is approximately along and 40 statute miles
either side of a line from 30 miles southwest of Roanoke VA to 40
miles east northeast of Charlottesville VA. For a complete depiction
of the watch see the associated watch outline update (WOUS64 KWNS
REMEMBER...A Tornado Watch means conditions are favorable for
tornadoes and severe thunderstorms in and close to the watch
area. Persons in these areas should be on the lookout for
threatening weather conditions and listen for later statements
and possible warnings.
AVIATION...Tornadoes and a few severe thunderstorms with hail
surface and aloft to 0 inches. Extreme turbulence and surface wind
gusts to 60 knots. A few cumulonimbi with maximum tops to 500. Mean
storm motion vector 23025.