The NWS Storm Prediction Center has issued a
Severe Thunderstorm Watch for portions of
far northeast Georgia
western North Carolina
eastern Tennessee
southwest Virginia
Effective this Tuesday night and Wednesday morning from 945 PM
until 300 am EDT.
Hail to 1 inch in diameter... thunderstorm wind gusts to 70
mph... and dangerous lightning are possible in these areas.
The Severe Thunderstorm Watch area is approximately along and 75
statute miles north and south of a line from 15 miles west
southwest of Knoxville Tennessee to 30 miles east of Bristol
Tennessee. For a complete depiction of the watch see the
associated watch outline update (wous64 kwns wou8).
Remember... a Severe Thunderstorm Watch means conditions are
favorable for 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. Severe thunderstorms can and occasionally
do produce tornadoes.
Other watch information... continue... ww 112... ww 114... ww
115... ww 116... ww 117...
Discussion... se KY sqln with embedded long-lived storms/supercells
should continue ESE into the wrn slopes of the srn Appalachians.
Wind and thermodynamic profiles /especially 40 kt unidirectional wly
flow upstream acorns middle TN/ suggest a continuing threat for high
wind and possible hail until convective system further outruns low
level instability axis and boundary layer continues to cool.
Aviation... a few severe thunderstorms with hail surface and aloft
to 1 inch. Extreme turbulence and surface wind gusts to 60 knots.
A few cumulonimbi with maximum tops to 450. Mean storm motion
vector 29035.
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