WW 222 SEVERE TSTM IL MO 131725Z – 140000Z
URGENT - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 222
NWS Storm Prediction Center Norman OK
1225 PM CDT Sat May 13 2023
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Southern Illinois
Far East-Central Missouri
* Effective this Saturday afternoon and evening from 1225 PM
until 700 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...Line of thunderstorms currently moving across far
east-central MO is expected to continue eastward into the unstable
airmass across southern IL. A threat for damaging gusts and large
hail will accompany the strongest storms within this line.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 50 miles northwest of
Saint Louis MO to 40 miles northeast of Salem IL. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU2).
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
27030.
...Mosier
