Sep 11, 2023
A flash flood event occurred in the Duluth area during the late evening of September 11th into the early morning hours of the 12th. An area of thunderstorms developed over Duluth during the evening hours and continued to backbuild over the hillside for a few hours before another area of rainfall pushed in from the west and helped push the backbuilding storms out over the lake. Rainfall totals of 3 to 6 inches fell over a small area at the top of the Duluth hillside in the Chester Creek basin in
Source: NOAA National Weather Service Storm Events Database (event 1140989). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in St. Louis County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.