Weather Blog for Duluth and the Northland

Parts of the Northland saw some thunderstorms today with heavy rain and lightning along with several reports of hail (mostly sub-severe) Over an inch of rain was reported in Isabella and Skibo today, while there was just enough mist to dampen the ground in Duluth and Superior.

Local Storm Reports from Friday, September 25, 2020

Source: https://www.weather.gov/dlh/

8:00 PM: Hail 1.00 inch (quarter size) Upson, WI (Iron County)

7:50 PM: Hail 0.70 inch. Mellen, WI (Ashland County)

7:11 PM: Hail 0.25 inch. 1 NNW Sanborn, WI (Ashland County)

7:00 PM: Hail 0.25 inch. Silver Bay, MN (Lake County)

5:13 PM: Hail 0.25 inch. 2 W Iron Junction, MN (St. Louis County)

4:52 PM: Hail 0.25 inch. Chisholm, MN (St. Louis County)

4:51 PM: Hail 0.25 inch. 2 S Kelly Lake, MN (St. Louis County)

4:47 PM: Hail 0.25 inch. 5 SE La Prairie, MN (Itasca County)

4:45 PM: Hail 0.25 inch. 6 SE La Prairie, MN (Itasca County)

4:38 PM: Hail 0.25 inch. La Prairie, MN (Itasca County)

4:36 PM: Hail 0.88 inch. 1 SSW Grand Rapids, MN (Itasca County) Nickel sized hail was covering the ground.

4:35 PM: Hail 0.70 inch. 2 SW Grand Rapids, MN (Itasca County) Hail was covering about 80 percent of a deck.

4:33 PM: Hail 0.50 inch. 3 S Cohasset, MN (Itasca County)

3:54 PM: Hail 0.25 inch. 3 N Cohasset, MN (Itasca County)

3:32 PM: Hail 0.25 inch. Federal Dam, MN (Cass County)

Rainfall Reports from Friday, September 25, 2020 Source: https://mesowest.utah.edu/ Isabella, MN: 1.46″ Skibo, MN: 1.03″ Eveleth-Virginia, MN: 0.57″ International Falls, MN: 0.56″ Bigfork, MN: 0.50″ Ashland, WI: 0.47″ Littlefork, MN: 0.42″ Ely, MN: 0.41″ Grand Rapids, MN: 0.36″ Chisholm-Hibbing Airport: 0.26″ Washburn, WI: 0.19″ Walker, MN: 0.07″ Cass Lake, MN: 0.02″ Hill City, MN: 0.02″ Duluth Airport: 0.01″ Superior Airport: 0.01″

A supercell thunderstorm developed along the Douglas-Bayfield County border in northwest Wisconsin late this afternoon, this storm showed some pretty strong rotation at times on radar noted by the red colors on the image below, but there have been no confirmed reports of tornadoes from this storm as of 8 PM Friday.

Radar loop from Friday, September 25, 2020 ending at 8:05 PM.

One area of thunderstorms affected parts of northern and northeast Minnesota today, while another area of thunderstorms affected parts of northwest Wisconsin late this afternoon and this evening. Both areas of storms missed the Twin Ports today, one stayed north, the other developed off to our east.

Source: https://weather.cod.edu/

Here’s a 5-hour satellite loop of today’s thunderstorms which impacted parts of the Northland.

Loop time ends at 7:11 PM, Friday, September 25, 2020.

Source: https://weather.cod.edu/

Lower level water vapor loop from Friday, September 25, 2020 – Loop time ends at 7 PM.

Watch how the thunderstorms erupt this afternoon and early this evening once the drier air shown in yellow colors reaches a more moist and unstable air mass which was over parts of the Northland today.

Thanks for reading!

Tim