LOCATIONS
Central and Eastern Iowa, Northern Illinois, Extreme Southeast Minnesota, Southern Wisconsin, Lake Michigan
EFFECTIVE
This Tuesday afternoon and evening from 230 PM until 1000 PM CDT.
THREATS
Several tornadoes and a couple intense tornadoes likely, Widespread large hail and scattered very large hail events to 4 inches in diameter likely, Scattered damaging winds likely with isolated significant gusts to 75 mph possible
SITUATION
Supercell thunderstorms will pose a threat for very large
to giant hail this afternoon and evening as they track eastward,
with the largest hailstones potentially reaching up to 3-4 inches in
diameter. The threat for several tornadoes will increase later this
afternoon and evening along a warm front, and any sustained
supercell will be capable of producing a strong tornado. Otherwise,
scattered to numerous severe/damaging winds may eventually occur as
thunderstorms consolidate into one or more bowing clusters, with
peak gusts up to 65-75 mph.
The tornado watch area is approximately along and 75 statute miles
north and south of a line from 60 miles west southwest of Waterloo
IA to 20 miles north northeast of Milwaukee WI. For a complete
depiction of the watch see the associated watch outline update
(WOUS64 KWNS WOU9).
PRECAUTIONS
A Tornado Watch means conditions are favorable for
tornadoes and 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.