Warm and humid weather on the way with isolated showers/t-storms; another record low at Hibbing, Minn this morning (July 31)

August begins on Thursday. The first NFL preseason game on NBC Thursday night, fall is right around the corner!

Here are the averages for August in Duluth

  • Temperature: 64.3 degrees
  • Precipitation: 3.70 inches
  • Normal high on the 1st: 76 F
  • Normal high on the 31st: 71 F
  • Normal low on the 1st: 56 F
  • Normal low on the 31st: 52 F

Records for August

  • Warmest 70.2 degrees set in 1930
  • Coldest 57.5 degrees set in 1912
  • Wettest 10.31 inches set in 1972
  • Driest 0.29 inches set in 1930

Average number of days with a high temperature of at least 80 degrees in August is 7 days. Record for most number of 80 degree days was in August 1969 with 21 days recording a high temperature of at least 80 degrees.

Astronomical Data

  • Sunrise on the 1st: 5:48 AM CDT
  • Sunrise on the 31st: 6:26 AM CDT
  • Sunset on the 1st: 8:41 PM CDT
  • Sunset on the 31st: 7:49 PM CDT

July 17, 2019 Tornado Outbreak Information

Tornado – Voyageurs National Park

Locator Lake to Marion Bay (Rainy Lake)

St. Louis County, MN

Date: July 17, 2019

Time: 7:49 PM – 8:06 PM CDT

EF Rating: EF-1

Estimated Peak Winds: 100 mph

Path Length: 3.5 miles

Path Width: 600 yards

Injuries/Deaths: None

Tornado(es) – Wirt/Effie

Itasca and Koochiching County, MN

Date: July 17, 2019

Time: 7:00 PM – 8:00 PM CDT

Tornado – Orr/Gheen to Buyck

St. Louis County, MN

Date: July 17, 2019

Time: 8:05 PM – 8:45 PM CDT

Note: Additional information on the July 17, 2019 tornado outbreak can be found at this link https://www.weather.gov/dlh/2019-07-17-Northeast-Minnesota-Tornadoes

***Record Low Temperature at Hibbing, Minnesota today, July 31, 2019***

New record: 39 degrees set on July 31, 2019; previous record was 40 degrees set in 1971. Note: This is the second day in a row with a record low temperature at Hibbing.

It’s been an interesting summer! Hibbing has set a record low temperature 5 times since June 1. Record lows were broken on June 2, June 12, June 13, July 30 and July 31.

Isolated to widely scattered showers and thunderstorms are possible at times on Thursday mainly across northern Minnesota.

18z NAM-WRF model radar forecast valid from 7 AM Thursday to 7 AM Friday.

Source: https://weathermodels.com

Low temperature forecast for Thursday morning, August 1.

Source: https://graphical.weather.gov

High temperature forecast for Thursday, August 1.

Rainfall totals in the Northland will vary greatly through Friday with some locations getting very little rain, while other locations pick up an inch or so of rain, on average we’re looking at around a tenth to quarter inch of rain with locally higher amounts. With the type of pattern that is setting up, all day rains are not expected, but isolated to scattered downpours will occur in some parts of the area with dry hours in between the showers.

Source: https://weathermodels.com

…Weather Summary…

Turning more humid the next few days as we kick off the month of August.

Dew points will be climbing into the 60s Thursday, and should remain in the 60s through the weekend.

Pattern change is well underway today as winds shift to the south as high pressure moves off to the east.

Upper level winds remain out of the northwest across the area today between an upper level low near Hudson Bay and an upper level ridge over the central and southern Rockies, under that ridge, 850mb temperatures are as warm as +30C this afternoon across the northern Rockies, while to the northeast of that ridge 850mb temperatures are in the +12 to +14C range here in the Northland.

The weather through Saturday will feature partly to mostly cloudy skies, mild and humid conditions with isolated to widely scattered showers and thunderstorms. Forecast models are showing enough instability for thunderstorm development with CAPE to around 1000 J/kg, but severe weather is not expected due to weak winds aloft, weak 0-6 KM wind shear along with less than ideal mid level lapse rates. Storms that develop should be of the pulse variety and outflow dominant with heavy downpours and occasional lightning being the primary threats with gusty winds also possible when storms collapse.

Lows tonight will be in the 50s, but 40s are possible in the typical cool spots and also in parts of northwest Wisconsin. Highs Thursday will be in the 80s. South winds tonight 5 to 15 mph with southwest winds Thursday at 10 to 20 mph.

Spirit Valley Days kicks off Thursday with the parade in West Duluth from 6 PM to 7:30 PM. Weather looks good for the parade on Thursday with temperatures in the low to mid 80s. Winds southwest 10 to 20 mph. Any showers and thunderstorms should remain north of Duluth through Thursday evening.

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