Turning warmer and more humid the next few days (cooler near Lake Superior) A few showers tonight-Thursday night; Isolated strong to severe t-storms possible Friday

Temperatures will be warming up the next few days, with highs in the 80s in northeast Minnesota and northwest Wisconsin from Thursday through Sunday, with even a few 90s possible especially across southern portions of the northland from east-central Minnesota into southern portions of northwest Wisconsin. Note: A cooler lake breeze will continue near Lake Superior Thursday and Friday (highs in the 60s & 70s) but it does look like will get rid of this lake wind this weekend, so temps even near the lake should climb well into the 80s.

High temperature forecast valid from Thursday, July 22 to Sunday, July 25, 2021.

One thing that’s been lacking this summer are high dew points (muggy air), but this will be changing Thursday through Saturday morning as southerly low level winds pull a muggier air mass northward into the Northland, this will cause dew points to climb into the 60s and even the lower 70s over the next few days.

Isolated to scattered rain showers will continue to move across the Northland through Friday morning, but like we’ve seen this week, these showers won’t be widespread, so much of the area probably won’t be getting a whole lot of rain through Friday morning.

Thunderstorm chances are pretty low in our area through Thursday since there really isn’t much instability for thunderstorm development.

Note: Only 0.29″ of rain so far this month at Duluth, Minnesota. The driest July on record was in 1875 (146 years ago) with 0.47″ of rain. Will see where July 2021 will end up, but I think there’s a decent chance it’ll be a top 10 driest July on record. Time will tell.

18z NAM 3km model simulated radar forecast valid through 7 AM Friday.

Rainfall totals ranging from only a trace to upwards of an inch are possible across northeast Minnesota and northwest Wisconsin through Saturday morning, yes that is a large range in totals, but that’s just how the pattern is right now.

There is a risk for isolated strong to severe thunderstorms over much of the Northland Friday into Friday night (dark green area) Hail up to 1 inch in diameter (quarter size) and wind gusts to 60 mph are the main threats if severe weather develops.

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Air quality has improved a bit across the Northland today compared to yesterday, but we’re still seeing moderate to unhealthy conditions today in the yellow and orange areas on the map below.

An Air Quality Alert (orange) remains in effect for much of Minnesota thru 6 AM Thursday, July 22, 2021.

High altitude smoke will continue to cover a large portion of the U.S. through Friday, with the thickest smoke in yellow, orange and red colors on the loop below.

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The heat remains off to our west today where 90s are widespread across the Northern Rockies and Northern Plains, while temperatures in the 60s and 70s were found in northeast Minnesota and northwest Wisconsin.

Temperatures are running some 10 to 15 degrees cooler than average this afternoon in parts of the Northland (green colors), but eventually will start to see more and more above average temperatures sneak into the Northland.

Tim

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