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WWUS20 KWNS 210657

SEL7

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ALZ000-GAZ000-NCZ000-TNZ000-211400-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 297

NWS Storm Prediction Center Norman OK

300 AM EDT Sat Jul 21 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northeastern and extreme eastern Alabama

  Central and northern Georgia

  Extreme southwestern North Carolina

  Middle and eastern Tennessee



* Effective this Saturday morning from 300 AM until 1000 AM EDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph possible

  Isolated large hail events to 1.5 inches in diameter possible

  A tornado or two possible



SUMMARY...Clusters of thunderstorms are expected to follow an

instability gradient generally south-southeastward across the watch

area, while offering occasional damaging wind and isolated large

hail.



The severe thunderstorm watch area is approximately along and 75

statute miles east and west of a line from 35 miles west northwest

of Crossville TN to 65 miles south southeast of Atlanta GA. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU7).



PRECAUTIONARY/PREPAREDNESS ACTIONS...



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...This severe thunderstorm watch replaces

tornado watch number 294...tornado watch number 295. Watch number

294 295 will not be in effect after 300 AM EDT. CONTINUE...WW

296...



AVIATION...A few severe thunderstorms with hail surface and aloft to

1.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A

few cumulonimbi with maximum tops to 550. Mean storm motion vector

34030.



...Edwards

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