Regional Weather Summary
Issued by NWS
AWUS83 KMKX 220929
Wisconsin Weather Summary
National Weather Service Milwaukee/Sullivan WI
430 AM CDT Fri Jul 22 2016
A very unstable air mass led to two rounds of thunderstorms across
the state. The first round moved across northern and central
Wisconsin during the morning and had damaging winds. The second round
moved across central and southern Wisconsin during the evening which
resulted in damaging winds and flash flooding. It was a hot and humid
day with high temperatures in the upper 80s to lower 90s with heat
index values of 100 to 110 across the southern and western parts of
Dense fog developed across northern Wisconsin where skies had
cleared early in the evening. Clouds in the wake of the evening
thunderstorms lingered across southern Wisconsin through the night.
Low temperatures ranged from the lower 60s north to around 70 west
and near the Lake Michigan shoreline.
Expect fairly quiet weather across Wisconsin today and tonight. A
few thunderstorms are possible in southwest Wisconsin late in the
afternoon. It will be another warm day, but less humid across the
north half of the state. Expect high temperatures in the upper 80s
in north central Wisconsin and along the Lake Michigan shoreline,
and the lower 90s elsewhere. Heat indices will be in the upper 90s
to just over 100 across the southwest half of the state. Low
temperatures tonight will range from the lower 60s north to the
lower 70s southwest.
Saturday and Sunday will continue to be very warm. Highs will be in
the upper 80s to around 90 across southern Wisconsin both days, with
slightly cooler temperatures north. Thunderstorm chances increase
across Wisconsin through the day Saturday. Thunderstorms are likely
across most of the state Saturday night. Chances for storms will
taper off from northwest to southeast as a cold front slides through
the region on Sunday.
Cooler and drier conditions will prevail over the Great Lakes area
on Monday and Tuesday next week.