

403 

WWUS20 KWNS 280314

SEL6

SPC WW 280314

ILZ000-MOZ000-280900-



URGENT - IMMEDIATE BROADCAST REQUESTED

Severe Thunderstorm Watch Number 66

NWS Storm Prediction Center Norman OK

1015 PM CDT Fri Mar 27 2020



The NWS Storm Prediction Center has issued a



* Severe Thunderstorm Watch for portions of

  West-central Illinois

  East-central Missouri



* Effective this Friday night and Saturday morning from 1015 PM

  until 400 AM CDT.



* Primary threats include...

  Scattered large hail and isolated very large hail events to 2.5

    inches in diameter possible

  Isolated damaging wind gusts to 60 mph possible



SUMMARY...Initially elevated supercell across central Missouri

should progress near the I-70 corridor with additional development

possible to the east-northeast into the early morning. Large hail

will be the primary hazard.



The severe thunderstorm watch area is approximately along and 45

statute miles north and south of a line from 15 miles west southwest

of Columbia MO to 30 miles south of Decatur IL. For a complete

depiction of the watch see the associated watch outline update

(WOUS64 KWNS WOU6).



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

2.5 inches. Extreme turbulence and surface wind gusts to 50 knots. A

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

25050.



...Grams

