Wednesday, June 8, 2016

June 8, 2016: Upper 20s in parts of the Northland early this morning; Record low broken at International Falls. Warmer and more humid weather on the way

/Issued 6:14 PM CDT, Wednesday, June 8th, 2016/

Friday's severe weather outlook (Subject to change in coming days)  Source, Storm Prediction Center.

The risk for severe thunderstorms on Friday is at a one (Lowest risk)

Low temperature forecast for tonight.  Source, National Weather Service Duluth, Minnesota.

High temperature forecast for Thursday.  Source, National Weather Service Duluth, Minnesota.

Low temperature report for June 8, 2016
Source:  National Weather Service Duluth, Minnesota

13 NE of Clear Lake, MN:  28 F
2 S of Brimson, MN:  28 F
Crane Lake, MN:  28 F
Embarrass, MN:  28 F
3 E of Orr, MN:  29 F
3 SE of Cotton, MN:  29 F

8 SSE of Ely, MN:  29 F
Skibo, MN:  30 F
Makinen, MN:  30 F
Grand Marais, MN (Airport)  30 F
Cook, MN:  30 F
Ely, MN:  30 F

Chisholm/Hibbing, MN (Airport)  30 F
International Falls, MN:  31 F
1 W of Isabella, MN:  32 F
Bigfork, MN:  32 F
Phillips, WI:  33 F
Glidden, WI:  33 F

Superior, WI:  34 F
Bruno, MN:  34 F
Silver Bay, MN:  34 F
3 NNE of Hermantown, MN:  35 F
1 ESE of Esko, MN:  35 F
Hayward, WI:  35 F

Cloquet, MN:  36 F
Duluth, MN (Airport)  37 F
Aitkin, MN:  37 F
Two Harbors, MN:  37 F
Moose Lake, MN:  37 F
Grand Rapids, MN:  37 F
Siren, WI:  39 F
Ashland, WI:  39 F

Source:  National Weather Service Duluth, Minnesota

Record low temperature at International Falls, Minnesota for June 8th, 2016.

New record:  30 degrees
Old record:  31 degrees set in 1978.

Weather Summary for NE Minnesota and NW Wisconsin
Date:  June 8, 2016

A chilly and in some areas a frosty start to the day turned into another nice afternoon as high pressure remained in control of our weather with this high extending from western Ontario Province south through the western Great Lakes.  Highs today were in the middle 60s to lower 70s which is close to average for early June.  It was cooler though close to Lake Superior with highs in the 50s to lower 60s thanks to a developing onshore wind.  Winds today were out of the south or east at 5 to 15 mph.

Forecast Discussion for NE Minnesota and NW Wisconsin

Confidence:  Medium to High.

Tonight:  High pressure will remain to our north/east while a warm front lifts slowly northeast into southwestern Minnesota -- Elevated showers and thunderstorms have already developed this afternoon near that boundary over portions of south central Minnesota and this activity should continue and may expand north a bit after Midnight.  A few showers are also possible tonight in parts of northern Minnesota but no thunderstorms are expected as the moist and unstable air remains well to the west/south of our area tonight.  Low temperatures will be milder compared to the past two nights, lows tonight will be in the 40s and 50s with near 60 degree temperatures around the Brainerd Lakes.  Winds will remain out of the south or east at 5 to 15 mph.

Thursday:  High pressure will be centered to our northeast with a warm front generally running from western to southeast Minnesota while low pressure by late afternoon extends from southern Saskatchewan Province south to the western High Plains -- Will see some changes take place tomorrow away from Lake Superior as a bit more humidity begins to creep north, dew points should be rising into the 50s and 60s and will also see an increase in the elevated CAPE, first in western-southern portions of the Northland then spreading slowly north/east for Thursday night.  A few showers and thunderstorms could develop from time to time but should be isolated in coverage.  Highs will be in the 70s to lower 80s with 50s near Lake Superior.  Lows will be in the 50s and 60s with 40s near Lake Superior.  East or southeast winds are expected at 10 to 20 mph.

...Extended Forecast...

Confidence:  Medium.

The combination of very warm temperatures and muggy conditions will peak over most of the Northland on Friday.  Dew points are expected to range from the mid 60s to lower 70s while high temperatures rise into the 80s with a few locations possibly getting into the lower 90s most likely in western-southwest portions of the Northland.

The atmosphere looks like it will become quite unstable on Friday with CAPE potentially climbing to 2000-3000 j/kg with Lifted Indices of -4 to -9C.  A warm front and cold front will be moving through the Northland on Friday with low pressure to our north.  Scattered showers and thunderstorms could erupt from time to time due to the warm, moist and unstable airmass.  Extra lift provided by those aforementioned boundaries could also help to ignite convection.  One limiting factor for storm development could be the cap or warm temperatures aloft as 700mb temperatures will be at around +10C.

Note:  If thunderstorms are able to develop on Friday they could become severe especially during the afternoon or evening hours.

Saturday looks to remain very warm but with lower dew points as a cold front settles south of the Northland.  Highs on Saturday are forecast to be in the 80s with some locations possibly near 90 degrees once again.

For Duluth and Superior:  Friday still looks like it will have an onshore wind so expect daytime highs to mainly be in the 50s below the hill, but Saturday is starting to look like it could be a very warm day as winds turn more to the north or northwest for most of the day, this could lead to high temperatures soaring well into the 80s, maybe up around 90 degrees for Saturday.  Will it rival the heat spike of May 6th when highs were in the low to mid 90s?  Probably not but it could still be plenty warm during the day Saturday.  East wind returns for Sunday which will result in much cooler temperatures once again with highs probably not getting out of the 50s in the Twin Ports.

Normal temperatures for June 9th at Duluth, Minnesota

High:  69
Low:  47

Sunrise Thursday:  5:14 AM CDT
Sunset Thursday:   9:01 PM CDT