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First Alert Day Monday: Strong To Severe Storms

Keep An Eye To The Sky
Strong to severe storms are possible Monday afternoon and evening.
Strong to severe storms are possible Monday afternoon and evening.(WMTV)
Published: Oct. 10, 2021 at 5:41 PM CDT|Updated: Oct. 10, 2021 at 9:07 PM CDT
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MADISON, Wis. (WMTV) - As we head towards the middle of October, we are typically tracking the seasons first freezing temperatures and snow flurries. But, that’s not the case this year. Our summer-like stretch of weather is leading to summertime storms and that brings the threat of some late seasons severe weather on Monday. Our chances have increased since early Sunday and enough so that we have issued a “First Alert Day” for Monday.

A cold front slowly moves into southern Wisconsin Monday. Out ahead of this, a warm and humid air mass will destabilize the atmosphere. This will lead to some scattered showers and storms through the morning hours. While we could see some heavy rainfall and thunder, this initial round isn’t likely to bring severe weather. As the cold front gets closer, more organized storm activity will develop into the afternoon and evening and linger into early Monday night. This will be our better chance of severe weather across southern Wisconsin.

All types of severe weather are possible on Monday. This includes quick spin-up tornadoes, large hail, and damaging winds. There is also the threat for flooding as storms work with plentiful moisture and could train over the same areas. Rainfall totals of .75-1.00″ will be common with locally higher totals up to 2 inches. While there remains some question in how things will evolve, confidence has grown enough that this will be impactful for parts of the area. The greatest threat of severe weather will be Madison and points south and east through southeastern Wisconsin.

Severe weather chances are increasing for southeastern Wisconsin as we move into Monday afternoon and evening. #StayTuned

Posted by Meteorologist Brian Doogs NBC15 on Sunday, October 10, 2021

Bottom Line:

Thunderstorms are expected Monday afternoon and evening across southern Wisconsin. All hazards will be possible with severe thunderstorms, including large hail, damaging winds, and tornadoes. In addition, any storms that are slow moving or repeatedly affect the same area may produce a quick 1 to 2 inches of rain and concerns for localized street flooding.

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