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599 

WWUS20 KWNS 091925

SEL8

SPC WW 091925

ARZ000-MSZ000-TNZ000-100200-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 158

NWS Storm Prediction Center Norman OK

225 PM CDT Sun May 9 2021



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Extreme eastern Arkansas

  Northern Mississippi

  Southwestern Tennessee



* Effective this Sunday afternoon and evening from 225 PM until

  900 PM CDT.



* Primary threats include...

  Scattered large hail likely with isolated very large hail events

    to 2 inches in diameter possible

  Scattered damaging wind gusts to 70 mph likely

  A tornado or two possible



SUMMARY...Thunderstorms are expected to increase in coverage and

intensity while spreading generally eastward from Arkansas into

Tennessee and northern Mississippi through the afternoon/evening.

The storm environment will favor supercells and organized clusters

capable of producing large hail and damaging winds.  A tornado or

two will also be possible with the most persistent supercells.



The severe thunderstorm watch area is approximately along and 65

statute miles north and south of a line from 65 miles west southwest

of Memphis TN to 45 miles northeast of Tupelo MS. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU8).



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 157...



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

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

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

28025.



...Thompson

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