/Issued 3:52 PM CDT, Monday, October 21, 2013/
Click the link to view a quick little map I prepared off scribblemaps.com This shows the basic setup for Tonight. Purple lines represent the general flow which is out of the north/northwest, this plus cold air rushing over Lake Superior will help to generate lake effect snow showers along the South Shore of Lake Superior (Blue area on the map)
*The 1st snowfall of the autumn season occurred on Sunday in parts of the Northland…The heavier snowfall stayed west/south of the Twin Ports, pretty much as expected*
Snowfall report for October 20, 2013
Source: National Weather Service Duluth, Minnesota
2 W of Barnum, MN (Carlton County) 2.5″
1 W of Silver Bay, MN (Lake County) 1.4″
1 SSW of Grantsburg, WI (Burnett County) 1.0″
Upson, WI (Iron County) 3.0″
1 SE of Malmo, MN (Aitkin County) 2.0″
3 W of Butternut, WI (Ashland County) 2.5″
5 WSW of Legionville, MN (Crow Wing County) 2.6″
Seeley, WI (Sawyer County) 1.5″
8 WNW of Park Falls, WI (Price County) 2.5″
4 ESE of Casino, MN (Cass County) 2.0″
Sarona, WI (Washburn County) 1.0″
8 ESE of Pine City, MN (Pine County) 2.3″
3 N of Brainerd, MN (Crow Wing County) 1.5″
Askov, MN (Pine County) 5.0″
*24-hour snowfall map ending This Morning (October 21, 2013) Source, Midwest Regional Climate Center.
Precipitation report for October 20, 2013
Source: National Weather Service Duluth, Minnesota
Duluth, MN: 0.23″
International Falls, MN: 0.14″
Brainerd, MN: 0.22″
Hibbing, MN: 0.20″
Ashland, WI: 0.27″
Hayward, WI: 0.25″
12 N of Isle, MN: 0.44″
3 E of Wright, MN: 0.28″
Cass Lake, MN: 0.16″
12 N of Grand Rapids, MN: 0.17″
Duluth, MN (NWS) 0.19″
Embarrass, MN: 0.18″
9 N of Bayfield, WI: 0.33″
4 W of Clam Lake, WI: 0.39″
Gordon, WI: 0.43″
Solon Springs, WI: 0.50″
Temperature and precipitation report for Duluth, Minnesota (Airport location)
October 13-19, 2013.
10/13: 57F/4 degrees above normal
10/14: 51F/2 degrees below normal
10/15: 48F/4 degrees below normal
10/16: 55F/3 degrees above normal
10/17: 48F/3 degrees below normal
10/18: 50F/1 degree below normal
10/19: 44F/6 degrees below normal
10/15: 43F/8 degrees above normal
10/16: 37F/2 degrees above normal
10/17: 36F/1 degree above normal
10/18: 37F/3 degrees above normal
10/19: 32F/2 degrees below normal
Total precipitation: 1.67″
*Last week’s temperature departure map. Duluth was around 1-2 degrees below average last week. (Source, Midwest Regional Climate Center)
*Last week’s precipitation departure map. 1.67″ rain total in Duluth last week was 200% above what would typically fall during that 7-day period. (Source, Midwest Regional Climate Center)
Today’s Weather Summary for Northeast Minnesota and Northwest Wisconsin
The 1st real shot of cold air has arrived right on schedule. Low pressure of 1000mb was over Northeast Ontario with high pressure of 1018mb over Western Manitoba. The flow between these two features is coming right out of the north/northwest and this is helping to bring down a very chilly airmass for mid-October. High temperatures Today were only in the 30s which is around 15 degrees colder than normal for this time of year. The air is unstable with plenty of cold air aloft and steep lapse rates which caused widespread snow showers and flurries across our area Today. Winds were out of the northwest at 10 to 20 mph with higher gusts. Wind chills have been running in the teens and 20s Today.
Forecast Discussion for Northeast Minnesota and Northwest Wisconsin
Short Term Forecast – Confidence: High.
Note: N/NW wind coming off Lake Superior combined with plenty of cold air moving over the relatively warmer waters of Lake Superior will generate lake effect snow showers at times during the next few days. 1-4″ of snow could accumulate in some portions of Bayfield, Ashland, and Iron County in Northern Wisconsin. Also, there is a potential for some snow showers off some of the smaller inland lakes in Northeast Minnesota – including Lake Winnie, Big Sandy, Island Lake, and Leech Lake with the potential for 1-2″ of snow especially Tonight.
Tonight (October 21)
Brisk and cold, this sums up Tonight’s weather. Partly to mostly cloudy skies will be found in our area with scattered snow showers and flurries. Lows Tonight will be in the 20s to lower 30s with winds from the northwest at 10 to 20 mph.
Tuesday and Tuesday Night (October 22)
The chance for flurries will be lower for most areas during this period, but still can’t rule out a few flakes here and there. Partly to mostly cloudy skies will continue with highs in the 30s to lower 40s with lows in the 20s to around 30. North or west winds are expected at 10 to 20 mph.
Extended Forecast – Confidence: High.
Wednesday through Friday (October 23-25)
No big storms during this period as we remain in a NW flow aloft. Flurries or sprinkles could occur at times as weak disturbances drop south out of Canada, but that should be about it. High temperatures will remain in the 30s to lower 40s. Lows Wednesday Night and Thursday Night will be in the 20s to around 30.
Long Range Forecast – Confidence: Medium.
A clipper like system looks like it’ll pass north/east of our area on Saturday (26th) A few rain or snow showers are possible in the Northland on Saturday with better chances for precipitation farther to the north. The next period to keep an eye on looks like it’ll be the 28th-31st, this is when a storm could develop over the Plains while possibly making a move toward the Great Lakes, should this scenario play out then we could see some rain or snow in parts of the Upper Midwest and Western Great Lakes region next week. Stay tuned! Below to near average temperatures are forecast through this period.
5 DAY FORECAST FOR DULUTH/SUPERIOR
.Tonight… Breezy. Scattered flurries and snow showers. Partly to mostly cloudy. Low 25 to 30. Wind northwest at 10 to 20 mph.
.Tuesday… Partly sunny. High 37 to 42. Wind northwest at 10 to 20 mph.
.Tuesday Night… Partly cloudy. Low 25 to 30. Wind northwest at 10 to 15 mph.
.Wednesday… Partly sunny. High 35 to 40.
.Wednesday Night… Partly cloudy. Low 23 to 28.
.Thursday… Partly cloudy. High 35 to 40.
.Thursday Night… Partly cloudy. Low 23 to 28.
.Friday… Partly sunny. High 37 to 42.
Normal temperatures for Today
Sunrise Tuesday: 7:37 AM CDT
Sunset Tuesday: 6:08 PM CDT