Sunday, February 22, 2015

February 22, 2015 Weather Report - Dangerous wind chills/bitterly cold thru Monday AM; Gusty winds/milder Monday PM-Tuesday; Overall a cold/dry pattern continues

/Issued 4:34 PM CST, Sunday, February 22, 2015/

Check this out! Here is last week's temperature departure map.  Incredible temperature departures with many areas 20-25 degrees colder than normal for the entire week.  Wow!  Source, Midwest Regional Climate Center.





















Record Event:

*Record low temperature tied at International Falls, Minnesota on February 22, 2015.  Low temperature This Morning was -29 degrees tying the record low for the date which was last set in 1914.

*2nd coldest February 22 on record at Duluth, Minnesota.  High temperature Today was -3 degrees which is good for 2nd coldest.  The coldest February 22 occurred in 1889 with a high temperature of just -12 degrees.  So you have to go back 126 years ago to find a colder February 22 than what we saw Today, incredible!

NWS hazards map.

Darker blue=Wind Chill Warning:  More information at this link http://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=wind%20chill%20warning

Lighter blue=Wind Chill Advisory:  More information at this linkhttp://forecast.weather.gov/wwamap/wwatxtget.php?cwa=dlh&wwa=wind%20chill%20advisory

















Lowest wind chills from This Morning, February 22, 2015
Source:  National Weather Service Duluth, Minnesota

2 E of Birchdale, MN:  -50F
Grand Marais, MN (Airport)  -46F
Grand Rapids, MN (Airport)  -45F
Orr, MN:  -44F
Northome, MN:  -43F
Cook, MN:  -42F
International Falls, MN:  -42F
Duluth, MN (Airport)  -41F
Walker, MN:  -41F
Cloquet, MN:  -39F
Bigfork, MN:  -38F
Crane Lake, MN:  -38F
Ely, MN:  -37F
Superior, WI:  -34F
Sky Harbor Airport, MN:  -32F
Siren, WI:  -31F
Hayward, WI:  -26F
Ashland, WI:  -20F

Low temperatures from This Morning, February 22, 2015
Source:  National Weather Service Duluth, Minnesota

5 E of Seagull Lake, MN:  -33F
Crane Lake, MN:  -29F
International Falls, MN:  -29F
3 SE of Cotton, MN:  -28F
Littlefork, MN:  -28F
Northome, MN:  -28F
Orr, MN:  -27F
Bigfork, MN:  -26F
Cook, MN:  -26F
Embarrass, MN:  -25F
Walker, MN:  -25F
Grand Marais, MN (Airport)  -24F
Ely, MN:  -22F
Bruno, MN:  -20F
Brainerd, MN:  -19F
Cloquet, MN:  -18F
2 SW of Proctor, MN:  -18F
4 S of Bruno, MN:  -17F
Duluth, MN (NWS)  -17F
Silver Bay, MN:  -15F
Superior, WI:  -14F
Siren, WI:  -13F
Glidden, WI:  -11F

Temperature and precipitation report for Duluth, Minnesota - Airport location

February 15-21, 2015

High temperatures:

2/15:  3F/21 degrees below normal
2/16:  14F/10 degrees below normal
2/17:  5F/20 degrees below normal
2/18:  -5F/30 degrees below normal
2/19:  5F/20 degrees below normal
2/20:  18F/8 degrees below normal
2/21:  17F/5 degrees below normal

Low temperatures:

2/15:  -9F/15 degrees below normal
2/16:  3F/3 degrees below normal
2/17:  -9F/16 degrees below normal
2/18:  -17F/24 degrees below normal
2/19:  -19F/26 degrees below normal
2/20:  -3F/11 degrees below normal
2/21:  -5F/13 degrees below normal

Total precipitation:  0.09"
Normal:  0.20"
Departure:  -0.11" below normal

Last week's precipitation departure map.  Source, Midwest Regional Climate Center.





















Weather Summary for February 22, 2015
Location:  Northeast Minnesota and Northwest Wisconsin

Impressive! That pretty much sums up this latest batch of arctic air.  A massive high averaging 1044mb covered the Northern Plains late This Afternoon.  850mb temperatures across the Northland ranged from -26 to -28C with an area of -30 to -34C H85 temperatures just to our northeast in Central and Eastern Ontario.  Late Afternoon 500mb heights were in the 516-522 meter range.  Highs Today were only in the single digits below zero to around zero.  Skies were sunny to partly cloudy and winds were out of the west or northwest at 5 to 15 mph with a few higher gusts.

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

Short Term Forecast - Confidence:  High.

Tonight (February 22)

High pressure will move into Iowa during the night.  Mostly clear skies will continue across the Northland with frigid temperatures.  Lows will be in the teens, 20s, and even some 30s below zero.  Winds will be out of the west, turning more to the southwest late in the night.  Wind speeds will range from 5 to around 15 mph with gusts to 20 mph.

Monday and Monday Night (February 23)

A sub-995mb low will move through Ontario while high pressure averaging 1040mb moves into the Ohio Valley.  The pressure gradient tightens up this period between the Ontario low and Ohio Valley high -- this will lead to gusty southwest winds throughout the Northland.  Warm air advection will also be occurring as 850mb temperatures climb into the teens below (C) instead of the 20s to near 30 below (C) that we saw Today.  Temperatures Tomorrow and Tomorrow Night will range from the single digits to lower 20s, the mildest temperatures may not occur until sometime Monday Night.  Wind speeds will range from 10-25 mph during this period with gusts over 30 mph possible.  Partly to mostly cloudy skies are expected with snow showers and flurries beginning late in the Afternoon or Monday Night.

Extended Forecast - Confidence:  High.

Tuesday through Thursday (February 24-26)

A cold front pushes off to our south while low pressure moves into eastern Canada on Tuesday.  Snow showers or flurries are possible especially Tuesday Morning, otherwise it's looking pretty dry during this period.  Note:  Total snowfall accumulations of a coating to 1" are possible between Monday PM and Tuesday AM with a few spots possibly getting up to 2" of new snow.

High temperatures on Tuesday will be in the teens and 20s with lows Tuesday Night in the single digits, teens, and 20s below.  Highs on Wednesday and Thursday will mainly be in the single digits with lows Wednesday Night in the single digits, teens, and 20s below.

Long Range Forecast - Confidence:  High.

(February 27-March 4)

No changes.  Below average temperatures continue from the 27th-4th with little to no snow.

5 DAY FORECAST FOR DULUTH AND SUPERIOR

Event:  *WIND CHILL ADVISORY*
Timing:  Until 10 AM CST Monday.

.Tonight...  Bitterly cold.  Mostly clear.  Low 15 below to 20 below.  Wind west at 5 to 15 mph.  Wind chills 30 below to 40 below.

.Monday...  Breezy.  Partly to mostly sunny.  High 11 to 16.  Wind southwest at 15 to 25 mph with gusts over 30 mph possible late.  Morning wind chills 30 below to 40 below.

.Monday Night...  Breezy.  Snow showers and flurries possible with accumulations less than 1".  Mostly cloudy.  Low 11 to 16.  Wind southwest at 15 to 25 mph with gusts over 30 mph possible during the Evening.

.Tuesday...  Flurries possible otherwise partly to mostly cloudy.  High 20 to 25.

.Tuesday Night...  Partly cloudy.  Low 5 below to 10 below.

.Wednesday...  Partly cloudy.  High 5 to 10.

.Wednesday Night...  Mostly clear.  Low 10 below to 15 below.

.Thursday...  Partly cloudy.  High 5 to 10.

Normal temperatures for Monday

High:  27
Low:    9

Sunrise Monday:  7:00 AM CST
Sunset Monday:   5:45 PM CST

Tim