Monday, November 28, 2016

Rainfall totals over 1" along the North Shore of Lake Superior today; Occasional showers tonight; Rain and snow showers Tue-Thu; Much colder temperatures next week

/Issued 4:45 PM CST, Monday, November 28, 2016/

Cold weather fans rejoice! Much colder temperatures, possibly arctic air invades the western U.S. and spreads south/east next week.  The map below shows the 850mb temperature anomalies for Thursday, December 8, 2016 per 12z Euro Ensemble model.  Source:  http://www.tropicaltidbits.com/

Note:  Right now it looks like high temperatures will be in the teens and 20s in the Northland with lows in the single digits with subzero lows possible -- The core of the coldest temperatures look to setup to our west, over the Rockies and northern Plains (Subject to change)  Timing of this looks to be from the middle of next week into next weekend (Dec 7-11 time frame, give or take)

Note:  If we can build up a snow pack prior to the middle of next week, then it would likely end up colder in northeast Minnesota and northwest Wisconsin.

Blue and purple colors=Below average temperatures













Upper Midwest radar loop through 4:30 PM CST today, November 28, 2016.  Source:  http://www.intellicast.com/

Green=Rain
Blue=Snow













A textbook storm over the northern Plains and upper Midwest today.

Source:  http://weather.cod.edu/















A zoomed in (1 KM visible satellite loop) from today.  A beautiful looking storm!  Source:  http://weather.cod.edu/















24-hour lightning map.  Source:  http://www.lightningmaps.org/















Tonight's low temperature forecast.  Source:  http://graphical.weather.gov/



















Tuesday's high temperature forecast.  Source:  http://graphical.weather.gov/



















Rainfall reports for November 27-28, 2016
Source:  http://mesowest.utah.edu/

Note:  Totals listed below are thru 4 PM today, November 28th.

Grand Marais, MN:  1.88"
Grand Portage, MN:  1.71"
Isabella, MN:  1.46"
Two Harbors, MN:  1.16"
Silver Bay, MN:  1.12"

Moose Lake, MN:  0.94"
Duluth, MN (Airport)  0.71"
Hinckley, MN:  0.68"
Hill City, MN:  0.64"
Grand Rapids, MN:  0.53"

Brainerd, MN:  0.52"
McGregor, MN:  0.45"
Chisholm-Hibbing, MN:  0.44"
Saginaw, MN:  0.43"
Siren, WI:  0.37"

Orr, MN:  0.31"
Littlefork, MN:  0.30"
Glidden, WI:  0.28"
International Falls, MN:  0.25"
Clam Lake, WI:  0.24"

Superior, WI:  0.24"
Washburn, WI:  0.21"
Hayward, WI:  0.20"
Phillips, WI:  0.20"
Ashland, WI:  0.12"
Solon Springs, WI:  0.11"

Weather Summary for northeast Minnesota and northwest Wisconsin

A deep area of low pressure averaging 976mb was located near Fargo, North Dakota at 3 PM today.  Note:  at 1 PM today, the pressure was down to 28.80" (975mb) at Moorhead, Minnesota, very impressive!

Since were on the east side of this big storm, warm temperatures and rain were the highlights in our area while wind and snow occurred west of the low across parts of North Dakota.

Highs in the Northland were in the upper 30s and 40s today with even a few locations making it into the low 50s.  Winds today were out of the east or southeast at 10 to 20 mph.

Forecast Discussion for northeast Minnesota and northwest Wisconsin

.Short Term Forecast...

Tonight (November 28)

Low pressure will remain near the northeast South Dakota, southeast North Dakota, and western Minnesota intersection tonight.  The central pressure will come up a bit, rising from ~976mb this evening to ~985 by daybreak.

Occasional rain and showers will continue tonight in the Northland.  Still can't rule out a thunderstorm either especially during the evening.  Low temperatures will be in the 30s to around 40 degrees.  Winds will be out of the east, northeast or south at 10 to 20 mph.

Tuesday (November 29)

A couple areas of low pressure along with an upper level low will remain over the upper Midwest and western Great Lakes on Tuesday -- Occasional showers will persist.  Some of the rain could mix with or change to snow from time to time in parts of the area but no accumulation of snow is expected.

Highs on Tuesday will be in the 30s to lower 40s with lows Tuesday night mainly in the 30s.  Winds will be out of the south, east or north at 10 to 20 mph.

.Extended Forecast...

Wednesday and Thursday (November 30-December 1)

More snow and rain showers are expected both Wednesday and Thursday as an upper level low pressure system moves very slowly off to the east.  Could be a light snowfall accumulation in parts of the Northland during the middle of the week but no significant accumulations or travel impacts are expected the way it looks now.

High temperatures in the 30s to around 40 on Wednesday, mainly in the 30s on Thursday.

Forecast for Duluth and Superior

.Tonight...  Mostly cloudy.  Occasional rain showers.  Low 35 to 38.  Wind east at 10 to 20 mph becoming southwest toward daybreak.

.Tuesday...  Mostly cloudy.  Occasional rain showers.  Rain could mix with some wet snow away from Lake Superior.  High 38 to 40.  Wind south to southwest at 10 to 20 mph.

Normal temperatures for Tuesday

High:  28
Low:   15

Sunrise Tuesday:  7:31 AM CST
Sunset Tuesday:   4:23 PM CST

Tim