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South to southwest winds have brought a very warm and humid air mass into the region for today. High temperatures are expected to reach the upper 80s to around 90 across most of the area.
The combination of the very warm temperatures and humid air will lead to heat index values in the middle to upper 90s today. A few spots may see heat index values around 100. See our Special Weather Statement about these very warm and humid conditions expected today.
Take it easy if venturing outdoors today, and remember to drink plenty of water.
See the highs and heat index values for today:
Today's Heat Index Values
A cold front will then move southeast across the area late this afternoon into this evening. The front will interact with the very warm, moist and unstable air mass over the area to bring scattered thunderstorms. Moderate to strong wind shear aloft will bring the possibility of severe thunderstorms.
There is a slight risk of severe thunderstorms across most of south central and southeast Wisconsin during this time. Damaging winds and large hail are the main hazards. The best chances for severe weather appear to be from around 4 pm until 10 pm.
In addition, the very moist air mass in place will lead to brief heavy rainfall with any of the storms.
Click here to see the latest Storm Prediction Center Day 1 Outlook.
See the forecast rainfall amounts through Wednesday night:
South Central And Southeast Wisconsin
Here is the latest local and regional radar imagery:
Regional Radar -
Regional Radar -
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