A cold front over eastern Minnesota early this morning will move east across Wisconsin through mid-afternoon. This front will interact with a warm and humid air mass to generate scattered thunderstorms. Enough instability and wind shear will be present to allow some of the thunderstorms to become strong to severe late this morning and early afternoon. The primary severe weather hazards will be large hail and damaging winds, however isolated tornadoes are possible.
Heavy rainfall will accompany any thunderstorms as well. The thunderstorms will end across southeast Wisconsin by late afternoon as west winds pull in drier air from the west. Check out an estimated graphical timeline for today's weather across southern Wisconsin. Here is the hourly weather graph for Milwaukee and Madison.
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