Wednesday, March 23, 2016

March 23, 2016 Weather Report - Powerful snow storm tonight and Thursday south of the Northland; Blizzard warning issued for Green Bay, Oshkosh and Appleton, WI.

/Issued 5:15 PM CDT, Wednesday, March 23, 2016/

A powerful spring storm is affecting a large portion of the Rockies, Central Plains as well as portions of the Upper Midwest and Great Lakes.  A variety of weather headlines ranging from winter storm warnings, blizzard warnings to fire warnings and high wind warnings are in effect due to this storm.

A swath of 6-12" of wet heavy snow is expected to fall by 5 AM Thursday from Northeast Nebraska, far Northern Iowa and far Southern Minnesota into Central-Eastern Wisconsin.  Source, 20z HRRR model using a 10:1 ratio.

Late afternoon water vapor satellite image, weather conditions and forecast storm track through Thursday evening.

Radar loop out of Des Moines, Iowa ending at 4:45 PM CDT.  Source, WSI.

Pink=Mixed precipitation

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

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

Weather Summary for NE Minnesota and NW Wisconsin
Date:  March 23, 2016

A powerful storm system has moved into the Central Plains today with low pressure averaging 992mb over North Central Kansas late this afternoon.  120-160 knot upper level winds covered Central-Eastern Canada this afternoon with another corridor of strong upper level winds at around 120 knots stretching from North Texas to Western Iowa -- A band of snow, heavy at times accompanied by some thunder & lightning developed today from Northeast Colorado to Southern Minnesota to Central Wisconsin due to the low over Kansas and also due to the strong divergence between the two corridors of strong jet stream winds.

The Northland is just too far north of this storm, as a result we had a partly to mostly cloudy sky with most of the clouds covering East Central Minnesota and Northwest Wisconsin.  High temperatures today were mainly in the 30s with east or northeast winds at 10 to 15 mph with gusts to 30 mph continuing near Lake Superior for the second day in a row.

Forecast Discussion for NE Minnesota and NW Wisconsin

Short Term Forecast - Confidence:  High.

Tonight (March 23)

Low pressure will move into far Northeast Missouri-far Western Illinois by daybreak with high pressure remaining to our north.  Partly to mostly cloudy skies will occur tonight with a chance for some light snow in far Southern parts of Northwest Wisconsin.  Low temperatures will be in the teens and 20s with single digits in far Northern Minnesota.  Winds will be out of the east or northeast at 10 to 15 mph with higher gusts near Lake Superior.

Thursday and Thursday night (March 24)

Low pressure is forecast to track through North Central Illinois tomorrow morning, reaching Southeast lower Michigan by Thursday evening.  High pressure will extend from the Central Plains to Ontario Province.  Partly to mostly cloudy skies are expected on Thursday with highs in the 30s to lower 40s.  Lows Thursday night will be in the teens and 20s.  Winds tomorrow will be out of the northeast or south at 10 to 15 mph with higher gusts near Lake Superior.  Winds tomorrow night will be out of the north or south-southeast at 5 to 15 mph.

Extended Forecast - Confidence:  Medium.

Friday through Sunday (March 25-27)

There is a chance for a few showers of rain or snow in far Northern Minnesota on Friday -- Note:  Most of the snow if there is any should be confined to the morning hours.  High temperatures on Friday will be in the 40s with 50s possible in around the Brainerd Lakes area.  Lows Friday night will be in the 30s with 20s in far Northern Minnesota.

An area of low pressure along with a cold front will pass through the Upper Midwest from Friday into Saturday -- This system should bring some rain and wet snow to the Northland Friday night into Saturday.  Note:  A band of about 1-3" of slushy snow could accumulate Friday night and Saturday especially in parts of North Central Minnesota the way it looks now.

Highs on Saturday will be in the 30s in Northern Minnesota with 40s in Northwest Wisconsin, lows Saturday night will be in the 20s with teens in Northern Minnesota.

Long Range Forecast - Confidence:  Medium.

(March 28-April 2)

A low pressure system could affect the Northland from March 28th-31st with a chance for rain which could mix with or change to snow by the 31st.  Near to above average temperatures are expected from the 28th-30th which will be followed by below average temperatures from March 31st-April 2nd.


.Tonight...  Windy.  Partly to mostly cloudy.  Low 18 to 23.  Wind east to northeast at 15 to 30 mph.

.Thursday...  Partly cloudy.  High 29 to 34.  Wind east to northeast at 10 to 20 mph.

.Thursday night...  Partly to mostly cloudy.  Low 20 to 25.  Wind east at 5 to 15 mph.

.Friday...  Partly sunny.  High 40 to 45 but cooler near Lake Superior.

.Friday night...  Light rain or a mix of rain and wet snow.  Low 32 to 35.

.Saturday...  Light rain or a mix of rain and wet snow.  High 35 to 38.

.Saturday night...  Mostly cloudy.  Low 22 to 27.

.Easter Sunday...  Partly sunny.  High 37 to 42.

Normal temperatures for Thursday

High:  38
Low:   21

Sunrise Thursday:  7:02 AM CDT
Sunset Thursday:   7:27 PM CDT