Warm to Very Warm Temperatures through next week (much cooler near Lake Superior Wednesday and Friday) A few chances for showers/t-storms thru Friday, but overall a dry pattern continues

…Local Storm Reports from around the Northland from Tuesday morning, June 8, 2021…

Source: https://www.weather.gov/dlh/

  • 3:28 AM: Thunderstorm Wind Damage. 3 miles ESE of Iron Junction, MN (St. Louis County) Approximately 3 trees snapped and blown over due to strong winds. Trees appear to be between 6 and 12 inches in diameter.
  • 2:46 AM: Thunderstorm Wind Damage. 5 miles WSW of Orr, MN (St. Louis County) The top of a white pine tree fell over due to strong winds, with one of the branches falling onto and causing damage to a cabin. Heavy rain also caused washouts and erosion with estimated rainfall amounts of 1.5 to 2 inches.
  • 1:41 AM: Thunderstorm Wind Damage. 4 miles E of East Gull Lake, MN (Crow Wing County) Several reports of pontoon boats and lifts flipped over due to strong winds associated with an outflow boundary that originated from thunderstorms.
  • 5:40 AM: Marine Thunderstorm Wind 45 mph. 1 mile SSE of Silver Bay, MN (Lake County)
  • 7:17 AM: Marine Thunderstorm Wind Gust 49 mph. 1 mile south of Grand Marais, MN

Thunderstorms brought heavy rain to parts of northern Minnesota early Tuesday morning with rainfall amounts ranging from around a half inch to upwards of 2 inches, but there was a sharp cutoff north and south of where the heaviest rain fell.

…Rainfall Reports from around the Northland from Monday night/Tuesday morning, June 7-8, 2021…

Note: Parts of southeast North Dakota picked up close to a half-foot of rain from Monday evening through Tuesday morning due to slow moving/nearly stationary thunderstorms over in that area.

Source: https://mesowest.utah.edu/; https://www.weather.gov/dlh/

  • Bigfork, MN: 1.80″
  • Orr, MN: 1.76″
  • 2 E Celina, MN: 1.13″
  • 2 S Tower, MN: 1.05″
  • Cook, MN: 0.80″
  • Walker, MN: 0.72″
  • Embarrass, MN: 0.58″
  • 10 W Gunflint Lake, MN: 0.55″
  • Grand Marais, MN: 0.45″
  • Ely, MN: 0.42″
  • Littlefork, MN: 0.36″
  • Longville, MN: 0.30″
  • 25 E Ely, MN: 0.30″
  • Isabella, MN: 0.29″
  • Skibo, MN: 0.28″
  • Grand Rapids, MN: 0.27″
  • International Falls, MN: 0.25″
  • Chisholm-Hibbing Airport: 0.23″
  • Eveleth-Virginia, MN: 0.03″
  • Pine River, MN: 0.02″

An impressive satellite loop showing the two clusters of strong to severe thunderstorms which impacted parts of eastern North Dakota and northern Minnesota Monday evening-Tuesday morning. Note: Those red and darker red colors on the animation below represent cloud top temperatures of -60 to -75 C.

Thunderstorms started to impact far western portions of the Northland around Midnight last night, then we saw those storms form into a line while moving quickly toward the east once they got into St. Louis County Minnesota around 3 AM today. Frequent lightning, heavy rainfall and gusty winds were the main hazards from those storms early today.

Radar loop below runs from 6:28 PM Monday, June 7, 2021 to 11:51 AM Tuesday, June 8, 2021.

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This has to be one of the coolest radar loops I’ve seen in a while – Thunderstorms have been ongoing all day today over a small portion of south-central North Dakota, but watch how these storms have been moving, they’ve been back building to the west-southwest throughout the day, how neat is that?

Note: Radar loop runs from 6:02 AM Tuesday to 5:04 PM Tuesday, June 8, 2021

And here’s a satellite loop showing the back-building convection in North Dakota today, Tuesday, June 8, 2021.

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…Record Warm Low Temperatures have been set the last few days…

June 5th, 2021 – New record warm low of 66 degrees at Brainerd, Minnesota. The previous record warm low temperature for June 5th was 65 degrees set in 1939.

June 6th, 2021 – New record warm low of 74 degrees at Brainerd, Minnesota. The previous record warm low temperature for June 6th was 70 degrees set in 1925.

June 7th, 2021 – New record warm low of 67 degrees at Duluth, Minnesota. The previous record warm low temperature for June 7th was 65 degrees set 139 years ago in 1882.

Note: Both Brainerd and Hibbing missed their record highs by just 1 degree today, June 8th, 2021.

Widespread 90s once again this afternoon over a large portion of Minnesota, while widespread 80s and a few lower 90s were found in northeast Minnesota and northwest Wisconsin. Cooler 60s and 70s closer to Lake Superior this afternoon, but expect more of a lake influence Wednesday and again on Friday with highs within about 10-15 miles of Lake Superior generally in the 50s, while farther inland temps stay very warm through Friday with highs in the 80s to lower 90s.

Note: Gusty easterly winds will occur near Lake Superior Wednesday and especially on Friday. Wind gusts to 20 mph Wednesday, and possibly as high as 30 mph on Friday.

Dew points aren’t terribly high across the Northland, but they are high enough to make it feel a little muggy, and expect that trend to continue through Friday, with dew points ranging from around 57 to 66 degrees in northeast Minnesota and northwest Wisconsin, and then much lower dew points move in this weekend.

Three troughs and a ridge! Not a whole lot of change to this pattern the next few days, but next week will see the ridge shift a little farther west, but overall a warm pattern looks to continue across the Northland well into next week.

A few showers and thunderstorms will develop at times over parts of the Northland through Thursday morning as a frontal boundary remains over the area, this front combined with a lake breeze front will provide a little lift in the atmosphere, and when coupled with an unstable air mass this could trigger some isolated convection at times, but no widespread significant rain or severe weather is expected in northeast Minnesota or northwest Wisconsin through Thursday, however, if you do get underneath a thunderstorm you likely will get a burst of heavy rainfall.

Here’s the 18z NAM 3km model simulated radar forecast thru 7 AM Thursday.

Tim

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