Friday, February 20, 2015

February 20, 2015 Weather Report - Bitterly cold temps/dangerous wind chills return Saturday Night; Wind Chill Advisory in effect for the entire Northland

/Issued 2:58 PM CST, Friday, February 20, 2015/

NWS hazards map.  Light blue=Wind Chill Advisory.  More information at this link:

Snow depth report as of 6 AM February 20, 2015
Source:  National Weather Service Duluth, Minnesota

northeast Minnesota:

Duluth:  9"
International Falls:  14"
7 NW of Brainerd:  6"
12 N of Isle:  4"
Cotton:  7"
12 N of Grand Rapids:  6"
25 E of Ely:  22"
Embarrass:  11"
Floodwood:  5"
4 E of Island Lake:  12"
Kabetogama:  19"
3 E of Orr:  12"
2 S of Tower:  10"

northwest Wisconsin:

1 WSW of Saxon:  18"
Hurley:  24"
Park Falls:  11"
4 W of Clam Lake:  11"

Minnesota snow depth map as of February 19, 2015.  Source, MNDNR.

Upper Midwest/Great Lakes snow depth map as of February 20, 2015.  Source, Midwest Regional Climate Center.

Weather Summary for February 20, 2015
Location:  northeast Minnesota and northwest Wisconsin

A milder day but still below normal for late February.  Highs were in the teens with lower 20s showing up in the Brainerd Lakes vicinity.  A low pressure trough averaging 1008mb extended from western Ontario to western Minnesota as of 3 PM with a cold front heading south/east out of northwestern Minnesota.  This system brought light snow and flurries to the Northland Today with the most persistent snow affecting northeast Minnesota and portions of northwest Wisconsin.  Snowfall accumulations have generally been in the half inch to 2" range with isolated 3" totals along the North Shore and over the Arrowhead.  Winds Today were out of the south or southwest at 5 to 15 mph.

Forecast Discussion for northeast Minnesota and northwest Wisconsin

Short Term Forecast - Confidence:  High.

Tonight (February 20)

Low pressure will exit to our south/east during the night while a cold front passes through the area This Evening.  Lingering flurries and light snow showers are expected Tonight but with little additional accumulation.  Lows will range from the single digits below to teens above zero as winds switch from the south/southwest to the northwest at 10 to 15 mph.

Saturday and Saturday Night (February 21)

Strong high pressure close to 1050mb will build southeast out of western Canada during this period.  Partly to mostly cloudy skies are forecast Tomorrow and Tomorrow Night with flurries or a few snow showers possible at times.  Highs will be in the single digits to around 20 degrees with the mildest temperatures found in eastern Minnesota and northwest Wisconsin.  Lows Saturday Night will be in the single digits, teens, and 20s below.  Winds will be out of the northwest at 10 to 20 mph.

Extended Forecast - Confidence:  High.

Sunday through Tuesday (February 23-25)

Arctic high pressure builds into the Upper Midwest on Sunday before it exits the region on Monday.  Mainly dry weather is expected on Sunday and Monday.  Bitterly cold temperatures are likely on Sunday with highs only in the single digits below zero with lows Sunday Night in the teens, 20s, and maybe even some 30s below.

Strong warm air advection develops on Monday as we get on the back side of high pressure and out ahead of low pressure which will drop southeast out of Ontario.  A minor snow event is possible in parts of the Northland from Monday PM-early Tuesday.  Highs on Monday are forecast to be in the teens and 20s with lows Monday Night mainly in the teens.  Highs on Tuesday will be in the teens and 20s but we could see falling temperatures during the day as the next shot of cold arctic air begins to drop south out of central Canada.

Long Range Forecast - Confidence:  High.

(February 26-March 2)

Below average temperatures are forecast from the 26th-2nd.  No major storms during the long range.


Timing:  3 AM Sunday until 11 AM CST Monday.

.Tonight...  Considerable cloudiness.  A few flurries possible mainly early.  Low 3 to 8.  Wind southwest around 12 mph becoming northwest at 10 to 15 mph late.

.Saturday...  Partly to mostly sunny.  High 12 to 17.  Wind northwest at 10 to 20 mph.

.Saturday Night...  Partly cloudy.  A few flurries possible during the Evening.  Frigid.  Low 13 below to 18 below.  Wind northwest at 10 to 20 mph.  Wind chills as low as 35 below.

.Sunday...  Frigid.  Mostly sunny.  High 0 to 5 below.  Wind chills as low as 35 below before Noon and around 25 below during the Afternoon.

.Sunday Night...  Frigid.  Mostly clear.  Low 15 below to 20 below.  Wind chills as low as 35 below.

.Monday...  Breezy.  Partly to mostly cloudy.  High 15 to 20.  Southwest wind could gust to 25 to 30 mph.  Morning wind chills as low as 35 below.

.Monday Night...  Mostly cloudy.  A few snow showers or flurries possible.  Low 10 to 15.

.Tuesday...  Partly sunny.  High 17 to 22.

Normal temperatures for Saturday

High:  26
Low:    8

Sunrise Saturday:  7:03 AM CST
Sunset Saturday:   5:42 PM CST