Saturday, April 9, 2016

April 9, 2016 Weather Report - 9th coldest low temperature on record for the month of April today at Duluth, Minnesota; 40s on Sunday which is normal for April 10th

/Issued 8:13 PM CDT, Saturday, April 9, 2016/

Yes it does warm up at times during the 2nd half of April but will it be enough to get us back above average for the month?  Pretty big temperature departures so far this month, it will take a couple shots of unseasonably warm temperatures to erase the current temperature departures.  Source, Midwest Regional Climate Center.

24-hour low temperature map ending the morning of April 9, 2016.  Source, Midwest Regional Climate Center.

Several inches of snow tonight and Sunday morning north and east of the Northland.  Here's the snowfall accumulation forecast per 21z RAP model.

Tonight's low temperature forecast.  Source, National Weather Service Duluth, Minnesota.

Sunday's high temperature forecast.  Source, National Weather Service Duluth, Minnesota.

Low temperature report for April 9, 2016
Source:  National Weather Service Duluth, Minnesota

5 E of Sea Gull Lake, MN:  -12 F
Grand Marais, MN (Airport)  -11 F
Embarrass, MN:  -8 F
Skibo, MN:  -7 F
1 W of Isabella, MN:  -6 F
Glidden, WI:  -3 F
Ely, MN:  -2 F

Aurora, MN:  -1 F
3 NNE of Hermantown, MN:  0 F
Crane Lake, MN:  0 F
Cook, MN:  0 F
Orr, MN:  0 F
Phillips, WI:  1 F
Duluth, MN (Airport)  2 F

Grand Rapids, MN:  3 F
Washburn, WI:  3 F
Cloquet, MN:  5 F
Northome, MN:  5 F
Bigfork, MN:  5 F
Ashland, WI:  6 F
International Falls, MN:  6 F
Bruno, MN:  8 F
Siren, WI:  9 F

*Record event*
Source:  National Weather Service Duluth, MN; Chanhassen, MN

Duluth, Minnesota - Record low temperature.

New record:  2 F
Old record:  6 F set in 2007

St. Cloud, Minnesota - Record low temperature.

New record:  13 F
Old record:  14 F set in 1997 and 1960.

Note:  This morning's (April 9th) low of 2 degrees at the Duluth Airport is the 9th coldest low temperature on record for the month of April.  Below is the top 10 coldest April lows on record at Duluth, Minnesota.  Source, Paul Douglas; St. Cloud Times

1)  -5 below zero on April 4, 1975 and April 3, 1954
3)  -4 below zero on April 2, 1975
4)  -1 below zero on April 4, 1995
5)  0 on April 2, 1970 and April 2, 1954
7)  1 on April 1, 1975 and April 4, 1920
9)  2 on April 9, 2016; April 3, 1995; and April 6, 1982

Weather Summary for NE Minnesota and NW Wisconsin
Date:  April 9, 2016

A low pressure trough averaging 996mb covered the Northern Plains north to Manitoba Province this evening.  There was some sun in the Northland before Noon today otherwise skies ranged from mostly cloudy to partly sunny.  There has been some echoes showing up on radar this afternoon but most of this has been in the form of virga or precipitation that didn't reach the ground thanks to a lot of dry air that was in place today.  Another setup where were seeing a strong thermal gradient with early evening 850mb temperatures ranging from +12 to +22 C across the central and western Dakotas to around -10 C in the Northland.  Winds today shifted to the south or east at 10 to 20 mph.

Forecast Discussion for NE Minnesota and NW Wisconsin

Short Term Forecast - Confidence:  High.

Tonight (April 9)

Low pressure will move into the Upper Midwest tonight while a strong southerly low level jet develops out ahead of this system which leads to a warm advection pattern tonight.  Mostly cloudy skies are expected with a chance for snow and mixed showers, precipitation that does fall tonight should remain fairly light although somewhat heavier snow could affect the Arrowhead of Minnesota with a few inches of snow accumulation possible mainly over Cook County.  Low temperatures will be in the 20s and 30s with teens before Midnight in far northeast Minnesota.  Winds will remain out of the south or east at 10 to 20 mph.

Sunday and Sunday night (April 10)

Low pressure will pass north/east of the area on Sunday while a cold front pushes through the Northland tomorrow morning.  Mostly cloudy to partly sunny skies for Sunday with a few snow, sleet or rain showers possible mainly during the morning.  Highs on Sunday will be in the 30s and 40s with near 50 degree temperatures possible in far southern parts of the Northland.  Winds will be out of the south, east or west at 10 to 20 mph.

Mostly cloudy skies Sunday night with a chance for flurries or snow showers.  Lows will be in the 20s with teens in far northern Minnesota.  Winds will be out of the west or northwest at 15 to 25 mph.

Extended Forecast - Confidence:  High.

Monday through Wednesday (April 11-13)

Flurries or snow showers are possible on Monday with highs in the 20s and 30s.  Lows Monday night will be in the single digits to around 20 degrees.

Mainly dry conditions are expected for Tuesday and Wednesday with highs on Tuesday in the 30s and 40s with highs on Wednesday in the 40s and 50s but it will be cooler near Lake Superior.  Lows Tuesday night will be in the 20s and 30s.  Note:  There is a chance for some patchy light snow in parts of the Northland Tuesday night-early Wednesday morning but this doesn't look like a real big deal at the moment.

Long Range Forecast - Confidence:  Medium to High.

(April 14-19)

Above average temperatures are expected during the long range although an easterly wind will keep it cooler near Lake Superior.  Looks mainly dry during the long range but a storm will be developing over the Rockies and Plains and this system may affect us sometime during the 17th-19th time frame but there's also a chance for this storm to remain west and south of the Northland which would lead to us staying dry.


.Tonight...  Mostly cloudy.  Low 25 to 30.  Wind east to southeast at 10 to 20 mph.

.Sunday...  Considerable cloudiness.  High 40 to 45.  Wind southeast at 5 to 15 mph becoming southwest at 10 to 20 mph during the afternoon.

.Sunday night...  Breezy.  Mostly cloudy.  Low 22 to 27.  Wind west at 15 to 25 mph.

.Monday...  Mostly cloudy.  High 33 to 38.

.Monday night...  Partly cloudy.  Low 12 to 17.

.Tuesday...  Partly sunny.  High 38 to 43.

.Tuesday night...  Partly to mostly cloudy.  Low 28 to 33.

.Wednesday...  Partly to mostly cloudy.  High 42 to 47.

Normal temperatures for Sunday

High:  46
Low:  28

Sunrise Sunday:  6:29 AM CDT
Sunset Sunday:   7:51 PM CDT