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Updraft® - Minnesota Weather News
Ron Trenda

Nice and summery today; strong to severe t-storms possible Saturday

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I'd call this a nice summer day!

We'll have sunshine and patchy clouds, with highs from around 80 to the lower 80s over most of Minnesota.  Some 70s are possible right along the north shore of Lake Superior.

You'll notice the humidity creep up a bit later in the day.

Saturday severe weather risk

Highs Saturday will be mostly in the 80s across Minnesota, and it will be steamy. The Twin Cities area should see highs in the upper 80s.

A cold front approaches western Minnesota tomorrow morning, then moves slowly across our state later in the day:

rt624allfronts

The National Oceanic and Atmospheric Administration’s North American Mesoscale Forecast System shows thunderstorms developing rapidly over Minnesota on Saturday, and tracking to the east-southeast:

rt624rad
NOAA/NAM data, via College of DuPage

Scattered thunderstorms could move through northern Minnesota late Friday night into early Saturday morning, but the main event will be in the afternoon and evening.

Some strong to severe thunderstorms will be possible Saturday afternoon and evening. The best chance of severe weather in the Twin Cities will be from about mid afternoon into early Saturday evening.

The Storm Prediction Center (SPC) of the National Weather Service indicates a slight risk of severe weather for most of Minnesota and western Wisconsin Saturday and Saturday night:

rt624svr
Storm Prediction Center/National Weather Service

Here is a small excerpt from the SPC discussion of the severe weather risk:

   SCATTERED SEVERE STORMS CAPABLE OF ISOLATED LARGE HAIL, WIND DAMAGE

AND A FEW TORNADOES ARE EXPECTED ACROSS MUCH OF MINNESOTA AND

WESTERN WISCONSIN ON SATURDAY

Here are the risk categories used by the Storm Prediction Center:

If you are traveling tomorrow or tomorrow evening, it would be good to stay aware of which county you are in.  Severe weather warnings are issued by counties or portions of counties.

Breezy Sunday

A low pressure system north of the Canadian border will give us a less humid, but breezy, Sunday. Far northern Minnesota could see occasional Sunday showers.

Sunday highs over southern Minnesota will be slightly cooler than our Saturday highs. Northern Minnesota highs will be quite a bit cooler on Sunday:

rt626h2

Programming note

You can hear live weather updates at 7:35 a.m. and 4:35 p.m. each Saturday and Sunday on Minnesota Public Radio.