/Issued 3:38 PM CST, Sunday, February 11, 2018/
18z RAP model
Temperature departure map for the week of February 4, 2018.
Precipitation departure map for the week of February 4, 2018.
Temperature and Precipitation report for Duluth, Minnesota
February 4-10, 2018
High Temperatures/Departure from Normal
2/4: 1 F/-20 degrees below normal
2/5: 9 F/-12 degrees below normal
2/6: 8 F/-14 degrees below normal
2/7: 13 F/-9 degrees below normal
2/8: 9 F/-13 degrees below normal
2/9: 9 F/-13 degrees below normal
2/10: 14 F/-9 degrees below normal
Low Temperatures/Departure from Normal
2/4: -17 F/-20 degrees below normal
2/5: -7 F/-10 degrees below normal
2/6: -15 F/-18 degrees below normal
2/7: -6 F/-10 degrees below normal
2/8: -8 F/-12 degrees below normal
2/9: -9 F/-13 degrees below normal
2/10: -11 F/-15 degrees below normal
Note: Average temperature for the week of February 4: -0.7 degrees; Departure: -13.4 degrees below normal. Source: http://www.dnr.state.mn.us
Total Precipitation: 0.01 inches
Normal: 0.16 inches
Departure: -0.15 inches below normal
State Average for Minnesota for the week of February 4
Temperature: -0.7 degrees
Departure: -14.7 degrees below normal
Precipitation: 0.16 inches
Departure: +0.01 inches above normal
•Over the first 9 days of February, Minnesota has reported the nation’s coldest temperature 5 times. So far 16 climate stations in northern Minnesota have dropped to -30 degrees at least one time this month. Source: http://blog-weathertalk.extension.umn.edu/
•9 consecutive days with measurable snow (0.1 inch or greater accumulation) at Chicago, Illinois, February 3-11, 2018 — Ties a record for the longest stretch set on January 6-14, 2009 and January 29-February 6, 1902. Note: Records date back to 1895. Source: @NWSChicago
•Des Moines, Iowa tied its 2nd longest streak with measurable snow of 8 days from February 4-11, 2018 (Previous was from January 15-22, 1963. Source: @wxjerdman
Low pressure of 1006mb was centered to the north of Lake Superior this afternoon with a cold front extending southwest of that low, this front has brought some clouds to the area today but still had quite a bit of sunshine today, there’s been a few flurries at times today mainly in northern Minnesota. Highs were in the teens with an isolated 20 degree temperature near Lake Superior and in eastern Minnesota and northwest Wisconsin.
Tonight and Monday: Arctic air returns as high pressure builds southeast out of western Canada and into the upper Midwest. Cold air advection is already occurring over the Northland this afternoon and this will persist into tonight with 850mb temperatures bottoming out between -20 and -25 C. Lows tonight will be in the teens and 20s below with a few lucky or not so lucky locations up north possibly dipping into the -30s. Highs Monday will only rebound into the single digits to around 10 above zero which is around 15 to 20 degrees below normal for February 12.
Note: Temperatures will warm into the 20s Tuesday afternoon as southerly winds lock in as high pressure exits off to the east. The warm air advection could help to produce a little bit of snow in parts of the Northland on Tuesday but snowfall amounts look very light, perhaps a half inch at most. Even warmer temperatures arrive on Wednesday with 850mb temps climbing to +3 to +7 C, this should support high temperatures in the 30s over most of the area with a few locations possibly getting into the lower 40s! Colder air looks to return then for late this week, and preceding this next cold shot could be a little bit of snow either late Wednesday night or Thursday, once again amounts look quite light at the moment, maybe a half inch to inch of snow later this week.
Forecast for Duluth and Superior
Event: *Wind Chill Advisory for Duluth*
Timing: 3 AM to 9 AM CST Monday
.Tonight… Very cold. Breezy. Scattered clouds. Low 9 below to 14 below. Wind northwest at 10 to 20 mph with gusts to 25 mph. Wind chills 20 below to 30 below after midnight.
.Monday… Cold. Mostly sunny. High 4 to 9. Wind west at 10 to 20 mph. Morning wind chills 20 below to 30 below.
.Tuesday… Partly to mostly cloudy. Flurries possible. High 23 to 28. Wind southwest at 10 to 20 mph.
Normal temperatures for Monday
Sunrise Monday: 7:18 AM CST
Sunset Monday: 5:29 PM CST