

135 

WWUS20 KWNS 201729

SEL0

SPC WW 201729

ARZ000-ILZ000-INZ000-KYZ000-MOZ000-MSZ000-TNZ000-210100-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 110

NWS Storm Prediction Center Norman OK

1230 PM CDT Sun May 20 2018



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  Northeast and East Central Arkansas

  Extreme Southern Illinois

  Extreme Southwest Indiana

  Western Kentucky

  Southeast Missouri

  Northern Mississippi

  Western Tennessee



* Effective this Sunday afternoon and evening from 1230 PM until

  800 PM CDT.



* Primary threats include...

  Scattered damaging wind gusts to 70 mph likely

  Scattered large hail events to 1.5 inches in diameter possible



SUMMARY...Storms are increasing as they move southeastward across

southern Illinois and southeast Missouri into northern Arkansas.

These storms will intensify this afternoon with severe wind gusts

and large hail possible.  Other storms will develop in advance of

the boundary over Tennessee and northern Mississippi with a threat

for local damaging winds and hail.



The severe thunderstorm watch area is approximately along and 80

statute miles east and west of a line from 30 miles east northeast

of Carbondale IL to 35 miles southwest of Oxford 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.



&&



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

27020.



...Weiss

