WW 151 SEVERE TSTM IL MO 201820Z – 210100Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 151
NWS Storm Prediction Center Norman OK
120 PM CDT Thu Apr 20 2023
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Central and southern Illinois
Southwest to eastern Missouri
* Effective this Thursday afternoon and evening from 120 PM until
800 PM CDT.
* Primary threats include...
Scattered large hail and isolated very large hail events to 2
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY...A few supercells and organized clusters should intensify
and spread east across parts of Missouri into central and southern
Illinois through early evening.
The severe thunderstorm watch area is approximately along and 70
statute miles east and west of a line from 15 miles north northwest
of Springfield IL to 25 miles west southwest of West Plains MO. For
a complete depiction of the watch see the associated watch outline
update (WOUS64 KWNS WOU1).
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 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
24035.
...Grams
