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Overnight Update: Some early morning storms possible; heavy rain next few days

Updated: 8:51 p.m. September 2, 2018

The severe potential for storms tonight has gone away. Most of the storms that rolled through had heavy downpours and plenty of lightning. A new flood advisory has been issued for the southeast half of the viewing area until 11:15 p.m. for ponding water. 

A few more storms are possible overnight, especially along the Wisconsin/Illinois border.

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Updated: 6:13 p.m. September 2, 2018

Showers and storms are currently moving through southeast Wisconsin. What started as more scattered activity has begun to form a line that has now moved through the Madison area. 

Expect the strong storms and heavy rain to move across the area through about 10 p.m. A few more storms may be possible after that, especially near the Wisconsin/Illinois border. 

A flood advisory has been issued for some of our northern counties until this evening. These areas have already been hit with some heavy rain and ponding water may cover the road.

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Posted: 4:19 p.m. September 2, 2018

If you're looking for a break from all the rain and storms of the past week, Sunday isn't it. Scattered showers and storms started developing around 2 p.m. and will continue most of the afternoon and evening. Most weather models have the scattered activity out west developing into a broken line and moving east. 

All of southeast Wisconsin is under the marginal risk for severe storms Sunday. Heavy rain is the biggest threat along with some strong wind and hail. There is a low risk of tornadoes.

A couple inches of rain may be possible through the rest of Sunday and with more storms off and on for Labor Day. Another chance for heavy rain moves through Wednesday as a slow cold front pushes through. That cold front may stall just east of Wisconsin increasing the chance for rain on Thursday, Friday and Saturday. By the time Friday ends most of southeast Wisconsin could see anywhere from 2-5".

If you have outdoor Labor Day plans, make sure you have a backup plan. The bulk of the morning will be dry but a few isolated showers are possible. A better chance for pop up showers and storms will arrive in the afternoon and evening. So don't completely cancel that cookout, but download the CBS 58 Ready Weather App so you know when dry weather will be arriving.

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