Aug 9, 2025
Another complex of thunderstorms developed the night of the 8th into the 9th across the Northern Plains and pushed eastward across the Northland during the morning hours. This round was not as intense as the round the previous morning, but did still produce some damaging winds and isolated flash flooding in parts of the Arrowhead as it moved through.
Source: NOAA National Weather Service Storm Events Database (event 1290316). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Cook County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.