Rain ends late tonight; Breezy and Cool Monday with isolated showers/sprinkles; Warming up midweek

A widespread light to moderate rain impacted northeast Minnesota and northwest Wisconsin today with rainfall totals thru 5 PM Sunday ranging from less than a quarter inch at International Falls to nearly an inch in the Duluth and Moose Lake areas. No thunderstorm activity in our area with today’s system due to a cool/stable air mass over the area.

12-Hour Rainfall Estimates thru 6 PM Sunday, June 20, 2021.

…Rainfall Totals from around the Northland from Sunday, June 20, 2021…

Note: Totals listed below are thru 5 PM Sunday, June 20, 2021.

Source: https://mesowest.utah.edu/

  • Moose Lake, MN: 0.97″
  • Hayward, WI: 0.86″
  • Longville, MN: 0.85″
  • Duluth Airport: 0.85″
  • Siren, WI: 0.81″
  • Two Harbors, MN: 0.79″
  • Superior Airport: 0.79″
  • Minong, WI: 0.75″
  • Hill City, MN: 0.74″
  • Cloquet, MN: 0.74″
  • Saginaw, MN: 0.69″
  • Barnes, WI: 0.67″
  • Walker, MN: 0.63″
  • Aitkin, MN: 0.61″
  • Solon Springs, WI: 0.57″
  • Washburn, WI: 0.52″
  • Brainerd, MN: 0.49″
  • Clam Lake, WI: 0.46″
  • Ashland, WI: 0.45″
  • Skibo, MN: 0.41″
  • Glidden, WI: 0.37″
  • Chisholm-Hibbing Airport: 0.36″
  • Bigfork, MN: 0.33″
  • Isabella, MN: 0.29″
  • McGregor, MN: 0.27″
  • Orr, MN: 0.21″
  • Ely, MN: 0.19″
  • Grand Rapids, MN: 0.17″
  • Grand Marais, MN: 0.16″
  • International Falls, MN: 0.14″
  • Littlefork, MN: 0.12″

For the Duluth area, today’s rainfall total of 0.85″ (thru 5 PM Sunday) is our greatest rainfall total we’ve seen in Duluth in about a month, or on May 23rd when 0.82″ of rain fell. And today’s precip total of 0.85″ (so far) is the greatest calendar day precip total in Duluth since March 10th when 0.97″ of precipitation fell.

Rain continues to fall late this Sunday afternoon across northeast and east-central Minnesota and northwest Wisconsin. This rain will diminish from NW-SE tonight.

MRMS radar loop ending 6:20 PM Sunday, June 20, 2021.

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Here’s the 18z HRRR model simulated radar forecast valid from 7 PM Sunday to 7 PM Monday.

Note: Rain is forecast to diminish in Duluth and Superior around 10 PM to Midnight tonight, then we could see a few popup type showers across the Northland on Monday.

It’s going to get windy late tonight into Monday morning as north to northwest winds increase to 15 to 30 mph with gusts to 50 mph possible over the tip of the Minnesota Arrowhead where a Wind Advisory (brown) is in effect from Midnight tonight to 6 AM Monday.

Meanwhile there are Gale Warnings (red) in effect for portions of western Lake Superior for Monday.

A pretty strong low pressure system considering the time of the year impacting the upper Midwest today with a cool widespread rain to the north, while severe weather is possible (magenta outlined area) in the warmer and more unstable air mass farther south.

Goes-16 water vapor loop from Sunday, June 20, 2021.

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A cooler weather pattern will remain in place across the Northland through Tuesday as will be in a NW flow aloft due to an upper level low pressure system which will be located well to our NE.

Daytime highs on Monday will only reach the 50s to lower 60s in northeast Minnesota and northwest Wisconsin, with temps on Tuesday trending a little warmer as will see highs in the 60s to around 70.

Warmer weather returns midweek, this is when we could have highs getting back into the mid 70s to mid 80s in the Northland.

Here’s a look at the 10-day Temperature Forecast for Duluth, Minnesota.

Coolest days this week look to be Monday and Tuesday, after that temps warm up, with a few opportunities for 80 degree temps sprinkled in. We’ve had 11 days so far this month with a high temp of at least 80 in Duluth, the record for June is 17 days set in 1910. It doesn’t look like will be breaking that record from June 1910, but we could get close!

Normal highs in Duluth from June 21st to June 30th range from 74 to 76 degrees, with normal lows ranging from 52 to 54 degrees.

Tim

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