/Issued 5:32 PM CDT, Tuesday, September 25, 2018/
Another round of mostly light rainfall moving through northeast Minnesota and northwest Wisconsin this Tuesday afternoon — Radar loop ending at 4:15 PM CDT.
Water vapor satellite loop for Tuesday, September 25, 2018.
Loop time: 12:27 PM to 5:12 PM CDT
One disturbance moving through the upper Midwest today, another one dropping S/E through the Dakotas.
18z NAM model 9-25-2018
Time frame on when the first freeze typically occurs. In the Duluth area, our first freeze usually occurs by the end of September, so the potential freeze this weekend would be right on schedule.
12z European computer model (ECMWF) 9-25-2018
Although we are in a cooler/unsettled weather pattern in the Northland, it doesn’t look cold enough for accumulating snowfall through next week, but there could be a few snow flurries in parts of the area this weekend.
Widespread rainfall amounts from a quarter to half inch were reported across the Northland from Monday afternoon into early Tuesday morning.
Rainfall reports for September 24-25, 2018
Note: Totals listed below are for the 24-hour period ending at 7 AM, Sept 25.
International Falls, MN: 0.80 in
3 E Wright, MN: 0.71 in
4 W Clam Lake, WI: 0.67 in
2 E Poplar, WI: 0.65 in
Spooner, WI: 0.64 in
Hayward, WI: 0.62 in
Cook, MN: 0.62 in
2 E Celina, MN: 0.60 in
Ashland, WI: 0.58 in
8 S Bigfork, MN: 0.53 in
12 N Grand Rapids, MN: 0.50 in
Hurley, WI: 0.50 in
Northome, MN: 0.49 in
10 W Gunflint Lake, MN: 0.49 in
Gordon, WI: 0.48 in
Kabetogama, MN: 0.46 in
Butternut, WI: 0.46 in
4 S Bruno, MN: 0.45 in
25 E Ely, MN: 0.40 in
Grand Portage, MN: 0.40 in
Cass Lake, MN: 0.36 in
Babbitt, MN: 0.29 in
4 E Island Lake, MN: 0.28 in
Brainerd, MN: 0.26 in
Embarrass, MN: 0.25 in
Hibbing, MN: 0.22 in
Duluth Airport: 0.21 in
Floodwood, MN: 0.21 in
Grand Marais, MN: 0.20 in
September climate stats for Duluth, Minnesota (thru the 24th)
Average temperature: 62.4 degrees
Departure: +5.6 degrees above normal
Precipitation: 3.15 inches
Departure: -0.20 inches below normal
Note: This month is still running warmer than average thanks to the very warm first half of the month, while rainfall has been slightly below average so far this month in the Twin Ports with at least 0.01 inch of rain falling on 8 days so far this month.
Only 5 dates so far this month with a below average temperature (5th, 6th, 21st, 22nd and 23rd)
A typical fall pattern in place with quick moving weather systems affecting the upper Midwest. Mid-upper level trough covered the northern Plains and upper Midwest with pieces of energy embedded in the trough moving east through the region today while widespread 12-hour 500mb height falls of 30 to 60 meters covered areas from the Dakotas east to upper Michigan associated with the upper trough. Skies across the Northland were mostly cloudy today with some light rain and drizzle. Much cooler compared to Monday with highs today in the mid 40s to low 50s.
Light rain and drizzle continues this evening but will end from west to east with partly to mostly cloudy skies expected overnight. Lows ranging from the mid 30s to mid 40s.
A few showers possible mainly west-south areas early Wednesday morning, otherwise mainly dry during the day followed by another round of scattered rain showers Wednesday evening/overnight thanks to another cold front which moves SE through our area. Highs Wednesday in the lower 50s to around 60 degrees, warmest temps in east-central Minnesota.
Weather pattern remains unsettled Thursday and Friday with some more showers possible at times, no widespread rains are expected, but at least a few showers will dot the landscape late this week. Highs Thursday mainly in the 50s, then cooler temps ahead for Friday with highs ranging from ~40 to 50 degrees, even cooler Saturday with highs mainly in the 40s.
Duluth, Minnesota Climate Normals for September 26
Sunrise Wednesday: 7:01 AM CDT
Sunset Wednesday: 6:58 PM CDT