/Issued 7:37 PM CDT, Monday, June 22, 2015/
Radar rainfall estimates from June 22, 2015. A nice swath of heavy rain along the Highway 2 corridor from Floodwood to Duluth and Superior with other pockets of heavy rainfall scattered throughout the Northland.
A massive complex of thunderstorms rolled east/southeast out of the Northern Plains and through the Upper Midwest late last night through this morning. Here’s what the enhanced infrared satellite loop looked like from 11:37 PM last night through 11:37 AM today. Source, unisysweather.com
Upper Midwest radar loop from 2:15 PM through 4:15 PM CDT today. Source, WSI. Note the couple lines of thunderstorms that developed and moved east/southeast through Northern Minnesota and Northwest Wisconsin this afternoon.
June 21, 2015 storm reports. Source, Storm Prediction Center
Blue dots=Damaging wind reports
Green dots=Large hail reports
Red dots=Tornado reports
Local Storm Reports for June 22, 2015
Source: National Weather Service Duluth, Minnesota
*7:13 AM CDT: 0.88″ HAIL. 5 NW of Duluth, MN (St. Louis County)
*7:24 AM CDT: 0.88″ HAIL. 2 NNE of Duluth, MN (St. Louis County) Dime and nickel sized hail fell between 7:22 and 7:24 AM.
*7:02 AM CDT: 0.88″ HAIL. 3 NE of Munger, MN (St. Louis County)
*7:10 AM CDT: 0.50″ HAIL. 1 N of Hermantown, MN (St. Louis County)
*7:10 AM CDT: 0.25″ HAIL. 1 N of Adolph, MN (St. Louis County)
*7:25 AM CDT: 0.50″ HAIL. 3 NE of Duluth, MN (St. Louis County) Estimated winds of 30 to 40 mph.
*7:16 AM CDT: 0.50″ HAIL. 4 WNW of Duluth, MN (St. Louis County)
*7:29 AM CDT: 0.25″ HAIL. 3 WNW of Duluth, MN (St. Louis County)
*7:31 AM CDT: 0.25″ HAIL. 4 NE of Duluth, MN (St. Louis County)
*7:26 AM CDT: 0.25″ HAIL. 3 NNE of Duluth, MN (St. Louis County) Largest hail stones measured 0.33″
*8:00 AM CDT: HEAVY RAIN. 1.05″. 5 NW of Duluth, MN (St. Louis County) Rainfall total between 7 and 8 AM.
*9:18 AM CDT: HEAVY RAIN. 1.28″. 7 W of Duluth, MN (St. Louis County)
*10:00 AM CDT: HEAVY RAIN. 1.03″. 2 E of Butternut, WI (Ashland County) Rainfall total between 7:30 and 10 AM.
*10:16 AM CDT: NON-THUNDERSTORM WIND GUST. 45 mph. 8 S of Hayward, WI (Sawyer County)
*10:30 AM CDT: NON-THUNDERSTORM WIND GUST. 48 mph. 1 ESE of Hayward, WI (Sawyer County)
*10:37 AM CDT: NON-THUNDERSTORM WIND GUST. 45 mph. 2 E of Butternut, WI (Ashland County)
*6:30 AM CDT: THUNDERSTORM WIND GUST. 53 mph. 1 ESE of Duluth, MN (St. Louis County)
*8:45 AM CDT: HEAVY RAIN. 1.61″. 4 NNE of Duluth, MN (St. Louis County) 2 hour rainfall total.
*3:38 PM CDT: 0.25″ HAIL. 7 W of Duluth, MN (St. Louis County)
Rainfall report for June 22, 2015 – totals from the past 24 hours ending at 7 PM this evening
Source: National Weather Service Duluth, Minnesota
Duluth, MN (Airport) 1.54″
International Falls, MN: 0.17″
Grand Marais, MN: 0.51″
Hibbing, MN: 0.19″
Hayward, WI: 0.47″
Temperature and precipitation report for Duluth, Minnesota – Airport location
June 14-20, 2015
High temperatures:
6/14: 78F/8 degrees above normal
6/15: 74F/3 degrees above normal
6/16: 64F/7 degrees below normal
6/17: 68F/3 degrees below normal
6/18: 69F/3 degrees below normal
6/19: 70F/2 degrees below normal
6/20: 74F/2 degrees above normal
Low temperatures:
6/14: 45F/5 degrees below normal
6/15: 53F/4 degrees above normal
6/16: 45F/5 degrees below normal
6/17: 52F/2 degrees above normal
6/18: 46F/4 degrees below normal
6/19: 42F/8 degrees below normal
6/20: 52F/1 degree above normal
Total precipitation: 0.57″
Normal: 1.02″
Departure: -0.45″ below normal
Last week’s temperature departure map. Source, Midwest Regional Climate Center
Last week’s precipitation departure map. Source, Midwest Regional Climate Center
Weather Summary for Northeast Minnesota and Northwest Wisconsin
Date: June 22, 2015
A strong area of low pressure averaging 1002mb has moved out over Central Lake Superior late this afternoon. A potent upper level trough/low passed through the Northland this afternoon with 12-hour 500mb height falls of up to 60 meters. This is a very impressive system with a mid level jet up to 80 knots while upper level winds are peaking at around 90 knots!
A large thunderstorm complex tracked east/southeast through the Upper Midwest this morning — This system produced torrential rain and dangerous lightning with widespread wind and hail damage reported in Southern Minnesota. There was also several reports of sub-severe hail in the Twin Ports vicinity around 7 AM today along with spotty wind damage reports.
By this afternoon skies cleared a bit with partly sunny-mostly cloudy conditions. Instability increased and with a pocket of cold air aloft approaching with the H5 low/trough, the stage was set for more scattered showers and thunderstorms from mid to late afternoon in parts of the Northland. A few of these storms were strong and a few severe thunderstorm warnings were issued in Northwest Wisconsin by the National Weather Service.
High temperatures today were generally in the 60s and 70s. Winds were all over the place eventually turning to the west or northwest at 10 to 20 mph with higher gusts.
Forecast Discussion for Northeast Minnesota and Northwest Wisconsin
Short Term Forecast – Confidence: High.
Tonight (June 22)
Low pressure deepens to around 992mb Tonight as it moves through Lake Superior and into Eastern Canada by daybreak with high pressure moving into the Northern Plains. Partly to mostly cloudy skies are expected Tonight with some rain affecting the Arrowhead of Minnesota before Midnight while spotty showers or thunderstorms continue in portions of Northwest Wisconsin. The entire Northland should be dry after Midnight. Low temperatures will be in the 40s and 50s with winds out of the west or northwest at 10 to 20 mph with higher gusts.
Tuesday and Tuesday Night (June 23)
An area of high pressure will pass south of the region while a cold front sinks south toward the Ontario-Minnesota border by late Tuesday Night. Partly to mostly cloudy skies are forecast this period. A few showers and thunderstorms should develop in parts of Northern Minnesota especially from Tuesday Afternoon through Tuesday Evening. Widespread severe weather is not expected but a few strong storms are possible with gusty winds and hail. High temperatures on Tuesday will be in the 70s with lows Tuesday Night in the 50s to lower 60s. Winds Tomorrow will be out of the west or southwest at 10 to 20 mph. Winds Tomorrow Night will be out of the north, east, or south at 5 to 15 mph.
Extended Forecast – Confidence: Medium to High.
Wednesday through Friday (June 24-26)
Scattered showers and thunderstorms will be possible in Northeast Minnesota and Northwest Wisconsin for Wednesday and Wednesday Evening as a cold front pushes south/west through the area. A few of the storms could be on the strong side once again with hail and gusty winds a possibility. High temperatures on Wednesday are forecast to be in the 70s to lower 80s with lows Wednesday Night in the 40s and 50s.
Can’t rule out a few spotty showers or thunderstorms Thursday and Friday mainly for areas that are away from Lake Superior. A lake breeze is possible later this week with high pressure over Lake Superior or north of Lake Superior, this lake breeze if it develops should keep things fairly stable near the big lake later this week which would lead to mainly dry conditions. High temperatures on Thursday and Friday are forecast to be in the 70s with cooler temperatures near Lake Superior. Lows Thursday Night will be in the 40s and 50s.
Long Range Forecast – Confidence: Medium to High.
(June 27-July 2)
A few showers or thunderstorms are possible from the 27th-29th as low pressure and a cold front approach from the northwest. Temperatures for the most part should be pretty close to average for this time of year, although we could have above average temps this weekend (27th-28th) and possibly again around July 2 but the computer models are struggling with the pattern for next week. Northwest flow develops with an upper low to our ENE while a massive dome of heat will be found out west. Prior model runs have shown that some of that western heat would move far enough east to affect the Upper Midwest next week while other model runs keep the heat to our west with our area under the influence of the cooler upper trough in Central/Eastern Canada. Stay tuned!
5 DAY FORECAST FOR DULUTH AND SUPERIOR
.Tonight… Breezy. Clouds at times. Low 53 to 58. Wind west to northwest at 10 to 20 mph with higher gusts.
.Tuesday… Partly cloudy. High 74 to 78. Wind west to southwest at 10 to 20 mph.
.Tuesday Night… Partly cloudy. Low 55 to 60. Wind southwest at 5 to 15 mph.
.Wednesday… Partly to mostly cloudy. Scattered showers or thunderstorms possible mainly later in the day. High 73 to 78.
.Wednesday Night… Scattered showers or thunderstorms possible mainly during the Evening. Partly to mostly cloudy. Low 50 to 55.
.Thursday… Partly sunny. High 65 to 70 but cooler near Lake Superior.
.Thursday Night… Partly cloudy. Low 50 to 55.
.Friday… Partly sunny. High 70 to 75.
Normal temperatures for Tuesday
High: 73
Low: 52
Sunrise Tuesday: 5:15 AM CDT
Sunset Tuesday: 9:07 PM CDT
Tim
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