WW 408 SEVERE TSTM IL IN MI OH LM 131850Z – 140100Z
URGENT – IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Watch Number 408
NWS Storm Prediction Center Norman OK
150 PM CDT Thu Jun 13 2024
The NWS Storm Prediction Center has issued a
* Severe Thunderstorm Watch for portions of
Northern Illinois
Northern Indiana
Southern and Central Lower Michigan
Far Northwest Ohio
Lake Michigan
* Effective this Thursday afternoon and evening from 150 PM until
800 PM CDT.
* Primary threats include…
Scattered large hail and isolated very large hail events to 2.5
inches in diameter possible
Scattered damaging wind gusts to 70 mph possible
A tornado or two possible
SUMMARY…Thunderstorms are expected to continue increasing in
coverage this afternoon while posing a threat for large hail around
1.5-2.5 inches in diameter. Severe/damaging winds of 60-70 mph may
also occur as convection moves east-southeastward and potentially
grows into one or more small clusters through the afternoon and
early evening.
The severe thunderstorm watch area is approximately along and 60
statute miles north and south of a line from 20 miles west southwest
of Marseilles IL to 10 miles north of Jackson MI. 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.
&&
AVIATION…A few severe thunderstorms with hail surface and aloft to
2.5 inches. Extreme turbulence and surface wind gusts to 60 knots. A
few cumulonimbi with maximum tops to 500. Mean storm motion vector
29030.
…Gleason
