/Issued 4:34 PM CDT, Friday, September 15, 2017/
Lots of rain last night up north while farther south little to no rain. Last night’s storms targeted areas north of a line from around Hill City to Floodwood to Two Harbors.
Not much change in the weather pattern through Saturday evening — There continues to be a marginal risk for flash flooding over most of northern Minnesota tonight, and then over all of northeast Minnesota and northwest Wisconsin for Saturday.
Minnesota radar loop ending at 4:30 PM CDT, September 15, 2017.
Local Storm Reports for September 14, 2017
*6:38 PM CDT: HAIL. 1.50 inch. Melrude, MN 5 NW (St. Louis County) Ping Pong ball sized hail.
*6:37 PM CDT: HAIL. 0.25 inch. Iron Junction, MN 2 S (St. Louis County)
*6:35 PM CDT: HAIL. 1.00 inch. Makinen, MN 1 E (St. Louis County)
*6:35 PM CDT: HAIL. 0.75 inch. Melrude, MN 5 NW (St. Louis County)
*6:33 PM CDT: THUNDERSTORM WIND DAMAGE. Melrude, MN 5 NNW (St. Louis County) A few 3 to 4 inch diameter trees downed blocking the south side of Highway 53, near Murphy Lake Road.
*6:19 PM CDT: HAIL. 0.25 inch. Aurora, MN (St. Louis County)
*6:19 PM CDT: HAIL. 1.00 inch. Makinen, MN 5 N (St. Louis County) Hail duration of approximately 5 minutes. Largest hailstones were quarter sized.
*6:11 PM CDT: HAIL. 0.25 inch. Embarrass, MN 1 E (St. Louis County) Pea sized hail.
*6:10 PM CDT: HAIL. 1.00 inch. Biwabik, MN (St. Louis County) Quarter sized hail.
*6:08 PM CDT: HAIL. 0.75 inch. Embarrass, MN (St. Louis County)
*5:48 PM CDT: HAIL. 1.75 inch. Biwabik, MN (St. Louis County) Golf Ball sized hail. Hail duration — Began at approximately 5:34 PM and ended at 5:48 PM.
*5:34 PM CDT: HAIL. 0.50 inch. Biwabik, MN (St. Louis County) Hail was approximately half the size of a dime.
*4:12 PM CDT: HAIL. 0.88 inch. Effie, MN WSW (Itasca County) The largest hail hailstones were nickel sized.
*4:01 PM CDT: HAIL. 1.75 inch. Nett Lake, MN 1 W (St. Louis County) Golf Ball sized hail.
*4:00 PM CDT: HAIL. 2.00 inch. Crane Lake, MN 2 E (St. Louis County) South side of Crane Lake. Hen Egg sized hail.
Rainfall reports for September 14-15, 2017
Makinen, MN 1 E: 5.00 in
Hill Annex Mine State Park, MN 3 E: 3.00 in
Crane Lake, MN 4 W: 2.64 in
Birch Lake, MN 4 N: 2.38 in
Zemple, MN 4 NE: 2.10 in
Skibo, MN: 1.81 in
Lutsen, MN: 1.51 in
Gunflint Lake, MN 3 W: 1.46 in
Brimson, MN: 1.46 in
Cotton, MN: 1.40 in
Aurora, MN 1 S: 1.38 in
Babbitt, MN: 1.38 in
Federal Dam, MN 3 WNW: 1.32 in
Greenwood Lake, MN 5 NNW: 1.29 in
Isabella, MN 1 W: 1.20 in
Buyck, MN 16 E: 1.10 in
Hibbing, MN 5 E: 1.09 in
Seagull Lake, MN 5 E: 1.04 in
Hibbing, MN: 1.02 in
Wabana Lake, MN 2 SE: 1.00 in
Grand Rapids, MN 12 S: 1.00 in
Grand Marais, MN: 0.88 in
Cook, MN: 0.41 in
International Falls, MN: 0.13 in
Island Lake, MN 4 E: 0.06 in
Cass Lake, MN: 0.04 in
Butternut, WI: 0.03 in
Ashland, WI: 0.02 in
Hayward, WI: 0.02 in
A frontal boundary extended from upper Michigan west to northern Wisconsin and north central Minnesota into western Minnesota, eastern South Dakota and central Nebraska. Very warm and humid conditions continued today south of this front with much cooler temperatures north of the front. Highs here in the Northland ranged from the 70s and lower 80s in eastern Minnesota and most of northwest Wisconsin with 50s and lower 60s near Lake Superior and over all of northern Minnesota.
Overcast skies were found over northern Minnesota today while there’s been some sun in northwest Wisconsin. Fog has also occurred today near Lake Superior and in other parts of northern Minnesota. An area of showers and a few thunderstorms has been lifting north/northeast out of central Minnesota this afternoon with this activity now affecting parts of northern Minnesota as of 4 PM.
The frontal boundary over north central Minnesota this afternoon will lift a little bit to the north tonight before this front shifts south/east as a cold front on Saturday — Will finally see this boundary exit the Northland by early Sunday morning, but until that happens our area will remain under the gun for occasional showers and thunderstorms tonight, Saturday and Saturday night. With abundant moisture already in place, the potential for heavy rain will continue, and if thunderstorms train over the same location for a few hours, then flooding could develop, similar to what occurred Thursday night up in northern Minnesota.
There is also a risk for a few strong to severe thunderstorms through Saturday evening with the main threats from hail and gusty winds.
Expect fog and low clouds to linger especially near Lake Superior tonight with some improvement possible on Saturday.
Lows tonight will range from around 50 degrees to the lower 60s with highs Saturday in the 60s and 70s but a few locations in northwest Wisconsin could make it into the lower 80s.
Cooler and drier weather returns Sunday with highs in the 50s to lower 60s.
Forecast for Duluth and Superior
.Tonight… Breezy. Areas of fog. Mostly cloudy with occasional showers. A few thunderstorms also possible. Low 50 to 55. Wind east at 15 to 25 mph.
.Saturday… Considerable cloudiness. Scattered showers or thunderstorms possible. High 69 to 74. Wind south to southwest at 10 to 15 mph.
.Sunday… Partly to mostly cloudy. High 57 to 62. Wind west to southwest at 10 to 20 mph.
Normal temperatures for Saturday
Sunrise Saturday: 6:48 AM CDT
Sunset Saturday: 7:18 PM CDT