Monday, February 21, 2011

2/21/11: Monday's Weather Report

Issued at 5:05 PM CST, Monday, February 21st, 2011

...Another major winter storm misses Northern Minnesota...

Here are some snowfall reports from Sunday and Monday.  Source:  NWS Duluth, Minnesota. 

Note:  The numbers below may not represent the final totals since additional snow has been falling in some locations This Afternoon.

3 miles North of Pine City, MN (Pine county)  12.0"
4 miles North of Grantsburg, WI (Burnett county)  9.5"
Sarona, WI (Washburn county)  7.6"
Webb Lake, WI (Burnett county)  7.5"
8 miles south of Hayward, WI (Sawyer county)  6.8"
4 miles southwest of Bruno, MN (Pine county)  6.1"
Brainerd, MN (Crow Wing county)  4.0"
Pillager, MN (Cass county)  3.5"
7 miles northwest of Two Harbors, MN (Lake county)  3.5"

Duluth, MN (NWS)  1.9" thru 6 AM Today.

Madison, MN:  19.0"
Eden Prarie, MN:  17.0"
3.5 miles southeast of Maplewood, MN:  16.8"
Bloomington, MN:  15.0"
Minneapolis, MN:  13.0"
St. Peter, MN:  10.0"

High wind report from Sunday, February 20th, 2011.  Source:  NWS Duluth, Minnesota.

Blatnik Bridge (MNDOT site, 100 feet up from water)  67 mph
1/4 mile south of Lift Bridge:  55 mph
Sky Harbor Airport:  54 mph
Park Point (Private Station)  54 mph
Silver Bay (Marine)  49 mph
Superior Bong Airport:  46 mph
Duluth International Airport:  46 mph
Duluth (I35 and Garfield)  46 mph
Cloquet Airport:  46 mph
Ashland WI:  41 mph

Forecast Discussion for Northeast Minnesota and Northwest Wisconsin

Today's Weather:

Low pressure of 1007mb has stalled out a bit over Northern Iowa This Afternoon with a secondary low of 1002mb heading E-NE through Southern Ohio.  Arctic high pressure of 1026mb was centered in Northern Ontario Province with a 1020mb ridge extending southwest through the Dakotas.  An area of snow has been very persistent Today from Eastcentral Minnesota through Northwest Wisconsin, this area of snow has tried it's best in lifting north since late last night, but the amount of dry air associated with that Ontario high has for the most part won the battle, as a result there has been a very sharp snowfall gradient which is rather common with this type of setup.  Lake effect flurries and snow showers also continued Today near Lake Superior, but the amount of dry air in place has kept most of these showers on the light side.  Highs Today were in the teens and 20s with east or northeast winds at 10-20 mph with higher gusts over 30 mph near Lake Superior.

Today's Upper Level Analysis:

500mb trough and upper level low was moving east through the Upper Midwest Today with a fast southwest flow aloft (120-160 knots) extending from the Southern Plains to the Northeast U.S. per RUC model analysis.

Tonight:

Snow in Eastcentral Minnesota and Northwest Wisconsin will gradually end This Evening from north to south with scattered lake effect flurries/snow showers near Lake Superior also coming to an end later in the night.  Another 1-2" of accumulation is possible This Evening over parts of Eastern Minnesota and Northwest Wisconsin.  High pressure will settle into the Upper Midwest Tonight with lows in the single digits and teens.  Winds will be out of the east, northeast, or southeast at 5-15 mph with a few higher gusts This Evening near Lake Superior.

Tuesday and Tuesday Night:

High pressure will head off to our east with southerly winds developing in our area.  Partly to mostly cloudy skies are forecast this period with highs Tomorrow in the 20s to around 30 degrees with lows Tomorrow Night in the teens and lower 20s.  Winds will be out of the south or southeast at 10-20 mph.

Extended Forecast:

An area of low pressure will lift northeast through our area on Wednesday with some areas of snow possible, accumulations look light with totals generally around an inch.  Flurries could linger Wednesday Night, then the period from Thursday through early next week looks generally dry for Northern Minnesota and Northwest Wisconsin with a return to below average temperatures as a large area of high pressure builds in from the northwest.  High temperatures on Wednesday will be in the 20s and 30s with lows Wednesday Night in the teens.  Highs Thursday will be in the teens and 20s with lows Thursday Night in the single digits below to single digits above zero.

5 Day Forecast for Duluth/Superior

.Tonight...  Light snow and flurries This Evening, accumulations under 1".  Total storm accumulations around 2" over the hill and less than 1" closer to Lake Superior.  Considerable cloudiness.  Low 8 to 13.  Wind east at 10 to 15 mph with a few higher gusts This Evening.

.Tuesday...  Partly sunny.  High 24 to 29.  Wind south at 10 to 15 mph.

.Tuesday Night...  Partly to mostly cloudy.  Low 15 to 20.  Wind south at 10 to 15 mph.

.Wednesday...  Mostly cloudy.  Light snow and flurries.  Accumulations 1" or less.  High 27 to 32.

.Wednesday Night...  Mostly cloudy.  Flurries.  Low 12 to 17.

.Thursday...  Partly sunny.  High 20 to 25.

.Thursday Night...  Partly cloudy.  Low zero to 5 above.

.Friday...  Partly cloudy.  High 12 to 17.

Normal temperatures for Tomorrow

High:  27
Low:    8

Sunrise Tomorrow:  7:01 AM CST
Sunset Tomorrow:   5:44 PM CST

Tim