/Issued 4:42 PM CDT, Tuesday, September 16, 2014/
East to northeast winds will increase near Lake Superior during the day Wednesday with wind gusts possibly as high as 25-30 mph from late Morning through the Afternoon hours. Map below is the 925mb wind forecast for Wednesday PM per 18z WRF model.
September 1-15, 2014 climate stats for Duluth, MN – Airport location
Average temperature: 57.1 degrees
Departure: -1.5 degrees
8 days with a high temperature of at least 70F
6 days with a high temperature cooler than 60F
3 days with a low temperature in the 30s
Total precipitation: 0.68″
Departure: -1.42″
2 thunderstorm days
1st half of September, 2014 temperature departure map. Source, Midwest Regional Climate Center. Below average temps for the Great Lakes and Upper Midwest.
1st half of September, 2014 precipitation departure map. Source, Midwest Regional Climate Center. Very wet across Eastern Minnesota, the Northern 1/2 of Wisconsin and in Upper Michigan with precipitation totals around 300% above average.
Weather Summary for September 16, 2014
Location: Northeast Minnesota and Northwest Wisconsin
A near perfect mid September day throughout the Northland. A cold front was hugging the Ontario-Minnesota border late This Afternoon while high pressure of 1020mb was centered to our southeast. Mild temperatures covered the area Today with a gusty southwest wind at 10 to 25 mph. High temperatures ranged from the mid 60s to 70 degrees over all but extreme Northern Minnesota where temperatures were in the upper 50s at 4 PM. Note: Much colder air was found over Ontario This Afternoon with temperatures only in the 40s with 850mb temperatures in the 0 to -8C range, that’s impressive for the time of year.
Forecast Discussion for NE Minnesota and NW Wisconsin
Short Term Forecast – Confidence: High.
Tonight (September 16)
Partly to mostly cloudy skies can be expected Tonight with the possibility for a shower or some patchy drizzle in far Northern areas. A cold front will sag slowly south through the night and should reach the Highway 2 corridor by daybreak. Lows Tonight will be in the 40s to around 50 degrees but a few spots might fall into the 30s. Winds will be out of the southwest or north/northwest at 10 to 20 mph.
Wednesday and Wednesday Night (September 17)
A cold front will push south and out of the Northland Tomorrow while high pressure builds in from Ontario. Will see a wide range in high temperatures on Wednesday with 40s and 50s near Lake Superior and 60s and a few 70s in Western/Southern areas. Lows Wednesday Night will be in the 30s and 40s. Winds will be out of west, north, or east Tomorrow at 10 to 20 mph with mainly east winds Tomorrow Night at 5 to 15 mph.
Extended Forecast – Confidence: High.
Thursday through Saturday (September 18-20)
Dry weather is forecast on Thursday, after that we could see some showers at times from late Thursday Night through Saturday as low pressure along with a warm front and cold front move through the area.
High temperatures will be in the 50s and 60s from Thursday through Saturday with lows Thursday Night and Friday Night in the 40s and 50s with some 30s possible Thursday Night.
Long Range Forecast – Confidence: High.
(September 21-26)
Near to below average temperatures are forecast this period with showers possible around the 25th-26th the way it looks now.
5 DAY FORECAST FOR DULUTH AND SUPERIOR
.Tonight… Partly cloudy. Low 42 to 47. Wind southwest at 10 to 20 mph.
.Wednesday… Turning much cooler and becoming windy. Partly to mostly cloudy. High 58 to 63 but temperatures falling into the 40s during the Afternoon. Wind becoming east at 15 to 30 mph.
.Wednesday Night… Partly cloudy. Low 35 to 40. Wind east at 10 to 20 mph.
.Thursday… Partly cloudy. High 52 to 57.
.Thursday Night… Partly to mostly cloudy. Low 42 to 47.
.Friday… Showers possible. High 60 to 65.
.Friday Night… Showers possible. Low 55 to 60.
.Saturday… Showers possible. High 60 to 65.
Normal temperatures for Today
High: 65
Low: 46
Sunrise Wednesday: 6:49 AM CDT
Sunset Wednesday: 7:16 PM CDT
Tim