Storms could go severe with damaging winds, large hail Sunday in Minnesota

Keep an eye on the skies Sunday afternoon and evening.
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The National Weather Service has issued a severe thunderstorm watch until 12 a.m. Monday. More details here via the Weather MN blog

7:30 A.M.

Temps will rise to around 90 degrees in the Twin Cities and surrounding areas Sunday afternoon, and the tropical humidity in place will lead to a favorable environment for explosive thunderstorm development late Sunday into the overnight hours. 

The Storm Prediction Center (SPC) out of Oklahoma has placed the northern two-thirds of Minnesota, including the Twin Cities, in a slight risk for severe storms. 

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As the National Weather Service (NWS) in the Twin Cities notes, computer model guidance is all over the place and having a difficult time pinning down what's going to happen. For example, the NAM 3KM model run Sunday morning shows (GIF may not load in all browsers) clusters of storms firing over central Minnesota and then moving east-southeast into Monday morning. 


The 8 a.m. run of the HRRR model shows storms firing in the eastern Dakotas and spreading eastward into Minnesota Sunday afternoon and evening. There's also a chance storms move over the same areas repeatedly, which could lead to high rainfall totals and flooding. 

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At this point, anything is possible and storms that reach severe levels will be capable of producing damaging winds, hail and isolated tornadoes. The bottom line is that the air is juicy and storms will undoubtedly fire up, so be prepared for possible watches and warnings. 

Before the storms the heat will be on as temps rise to around 90 degrees. With high humidity, including tropical dewpoints in the 70s, it's going to be sticky outside. Because of that, the weather service has placed the 7-county metro area in a heat advisory through Monday night. 

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The rest of the week, Tuesday through Friday, features more heat, humidity and storm chances. Check back to the Weather MN blog and bookmark it for easy updates.

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Powerful storms with damaging winds, big hail possible

There's already been reports of golf ball-sized hail in Minnesota.

Powerful storms could bring large hail, damaging winds Sunday

Temps will soar into the 80s, close to 90 in many spots.

Large hail, damaging winds possible Tuesday in Minnesota

The severe risk has been increased from marginal to slight.

Damaging severe storms possible in southern Minnesota

Another round of storms could develop Friday afternoon and evening.

Severe Saturday: Damaging winds, large hail, tornadoes possible

It'll also be very sticky outside with heat indices reaching 90-100 degrees.

Large hail possible with Friday storms, soaking rains to follow

Storms are expected to fire up during the afternoon on Friday.