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WWUS20 KWNS 271852

SEL0

SPC WW 271852

ALZ000-ARZ000-LAZ000-MSZ000-280200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 90

NWS Storm Prediction Center Norman OK

155 PM CDT Mon Mar 27 2017



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northern and central Alabama

  Far southeast Arkansas

  Far northeast Louisiana

  Central Mississippi



* Effective this Monday afternoon and evening from 155 PM until

  900 PM CDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2.5

    inches in diameter possible

  Scattered damaging wind gusts to 70 mph possible

  A tornado or two possible



SUMMARY...Severe thunderstorms will continue to increase from

northeast Louisiana and central Mississippi into western and

northern Alabama. Steep lapse rates and moderate vertical shear will

support the potential for well-organized storms including supercells

capable of large hail, damaging winds and possibly a tornado (mainly

across northern Alabama).



The severe thunderstorm watch area is approximately along and 60

statute miles north and south of a line from 30 miles northeast of

Gadsden AL to 50 miles south southwest of Greenville MS. For a

complete depiction of the watch see the associated watch outline

update (WOUS64 KWNS WOU0).



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 89...



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

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

few cumulonimbi with maximum tops to 500. Mean storm motion vector

24030.



...Guyer

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