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WWUS20 KWNS 180700

SEL9

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URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 519

NWS Storm Prediction Center Norman OK

105 AM CST Sun Dec 18 2016



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern Alabama

  Extreme Northwest Georgia

  Parts of Middle and East Tennessee



* Effective this Sunday morning from 105 AM until 500 AM CST.



* Primary threats include...

  Isolated damaging wind gusts to 70 mph possible



SUMMARY...Band of thunderstorms along a cold front will continue

eastward across northern AL and Middle/East TN for the next few

hours.  The strongest storms will be capable of producing isolated

damaging gusts, before the storms weaken prior to sunrise.



The severe thunderstorm watch area is approximately along and 45

statute miles east and west of a line from 60 miles northeast of

Crossville TN to 85 miles southwest of Huntsville AL. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU9).



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...CONTINUE...WW 518...



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

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

few cumulonimbi with maximum tops to 400. Mean storm motion vector

25050.



...Thompson

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