Friday, April 8, 2016

April 8, 2016 Weather Report - Over a foot of snow today along parts of the South Shore of Lake Superior with more snow tonight; Below zero temperatures tonight in parts of the Northland. Snowfall report included in this post

/Issued 5:35 PM CDT, Friday, April 8, 2016/

Winter Storm Warning remains in effect tonight in parts of northwest Wisconsin (Pink shaded area on map)  More information at the link below.  Source,; National Weather Service Duluth, Minnesota.

Winter Storm Warning --

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

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

Snowfall report for April 7-8, 2016
Source:  National Weather Service Duluth, Minnesota.

Note:  Totals listed below are snow totals from 6 AM Thursday through 2:15 PM Friday.

3 E of Sand Bay, WI (Bayfield County)  13.0"
4 E of Cornucopia, WI (Bayfield County)  12.0"
Gile, WI (Iron County)  8.5"
Washburn, WI (Bayfield County)  8.0"
2 ENE of Glidden, WI (Ashland County)  6.0"
1 N of Hurley, WI (Iron County)  5.0"
1 S of Oulu, WI (Bayfield County)  4.8"

3 W of Phillips, WI (Price County)  4.5"
4 NE of Sea Gull Lake, MN (Cook County)  3.5"
3 WSW of Lutsen, MN (Cook County)  2.6"
Park Falls, WI (Price County)  2.0"
East Gull Lake, MN (Cass County)  1.5"
Duluth, MN (St. Louis County)  1.4"  -- Official NWS total.
Embarrass, MN (St. Louis County)  1.0"

Weather Summary for NE Minnesota and NW Wisconsin
Date:  April 8, 2016

Winter is not giving up.  A very cold airmass has moved into the Northland today.  Afternoon 500mb temperatures of -35 to -40 C covered the area with 850mb temperatures of -12 to -16 C, very impressive for early April.  All of this cold air moving over the lake combined with steep low level lapse rates of greater than 8.0 c/km has led to widespread locally heavy snow showers today along the South Shore of Lake Superior with additional snow showers affecting parts of northeast Minnesota.  Snowfall rates today have approached or exceeded 1" an hour along the South Shore and whiteout conditions have occurred due to the combination of falling snow and the very strong winds, speaking of those winds they were horrible today with north or northwest winds in the 15 to 30 mph range with higher gusts.  Afternoon temperatures were only in the 20s with 30 degree temperatures in far southern parts of the Northland.

Forecast Discussion for NE Minnesota and NW Wisconsin

Short Term Forecast - Confidence:  High.

Tonight (April 8)

Frigid! High pressure builds into the Upper Midwest tonight.  Lake effect snow showers will continue along the South Shore of Lake Superior with occasional heavy snow continuing this evening for Bayfield, Ashland and Iron Counties, elsewhere expect clear to partly cloudy skies.  Low temperatures will be in the single digits below to teens above zero with teens below certainly possible in the traditional cold spots.  Winds will be out of the north or northwest at 15 to 30 mph decreasing to 10 to 20 mph.

Saturday and Saturday night (April 9)

High pressure will move off to the east while low pressure approaches from the west.  Partly to mostly cloudy skies on Saturday with highs in the 20s and 30s, winds will shift to the south or east at 10 to 20 mph.

Mostly cloudy skies Saturday night with a chance for some light snow or a wintry mix of precipitation -- Not expecting any heavy precipitation tomorrow night but there could be just enough snow or mixed precip to create some slick spots on area roads.  Lows Saturday night will be in the 20s and 30s with teens possible in far northern Minnesota during the evening hours.  Winds tomorrow night will remain out of the south or east at 10 to 20 mph.

Extended Forecast - Confidence:  High.

Sunday through Tuesday (April 10-12)

A few rain showers are possible on Sunday as low pressure passes north/east of the area, highs will be in the 30s and 40s with 50s possible in far southern portions of the Northland.  Colder temperatures return early in the work week with a chance for snow showers and flurries Sunday night and Monday.  Lows Sunday night will be in the teens and 20s with highs on Monday in the 20s and 30s, lows Monday night will be in the teens and 20s with single digits possible in northern Minnesota.  Dry on Tuesday with highs in the 30s to around 40 degrees.

Long Range Forecast - Confidence:  Medium.

(April 13-18)

Still looking at a milder temperature pattern during the long range although an easterly wind is possible which would keep it cooler near Lake Superior.  A large upper level trough is forecast to develop over the Rockies while an upper level ridge sets up across the Plains and Great Lakes -- Could be some rain sometime during the 16th-18th time frame but that will depend on the track of the Rockies trough/low pressure system.  Near to above average temperatures are expected from the 13th-18th.


.Tonight...  Breezy during the evening.  Partly cloudy.  Very cold.  Low 8 to 13.  Wind north to northwest at 15 to 30 mph decreasing to 10 to 15 mph.

.Saturday...  Partly to mostly cloudy.  High 30 to 35.  Wind south to southeast at 10 to 15 mph.

.Saturday night...  Mostly cloudy.  Low 27 to 30.  Wind southeast at 10 to 20 mph.

.Sunday...  Considerable cloudiness.  High 40 to 45.

.Sunday night...  Mostly cloudy.  Low 20 to 25.

.Monday...  Partly sunny.  High 33 to 38.

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

.Tuesday...  Partly cloudy.  High 35 to 40.

Normal temperatures for Saturday

High:  46
Low:  27

Sunrise Saturday:  6:31 AM CDT
Sunset Saturday:   7:49 PM CDT