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URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 407
NWS Storm Prediction Center Norman OK
1130 PM CDT Sat Jul 31 2021
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
parts of middle and eastern Tennessee
* Effective this Saturday night and Sunday morning from 1130 PM
until 300 AM CDT.
* Primary threats include...
Isolated damaging wind gusts to 65 mph possible
SUMMARY...Thunderstorms -- including a couple of stronger bowing
clusters -- will continue moving southeastward across the Tennessee
Valley area over the next couple of hours. Locally damaging wind
gusts in excess of 58 MPH will be possible with stronger storms.
The severe thunderstorm watch area is approximately along and 50
statute miles either side of a line from 45 miles north northwest of
Muscle Shoals AL to 20 miles northeast of Chattanooga TN. For a
complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU7).
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
AVIATION...A few severe thunderstorms with hail surface and aloft to
1 inch. Extreme turbulence and surface wind gusts to 55 knots. A few
cumulonimbi with maximum tops to 550. Mean storm motion vector