Marquette, Michigan – Heavy rain is set to drench Michigan’s Upper Peninsula through early Wednesday, with a Flood Watch in effect until 5 a.m. for the risk of flash flooding in already waterlogged areas. The National Weather Service warns that rainfall totals could exceed two inches in spots, raising the potential for rapid rises in creeks and streams, especially across the Keweenaw Peninsula and northern Ontonagon and Baraga counties.
According to the National Weather Service in Marquette, the heaviest rainfall will likely fall where the ground is already saturated from morning storms, further increasing the risk for localized flooding. Communities including Copper Harbor, Houghton, and L’Anse should remain alert overnight. Main highways like US-41 and M-26 could see water ponding, with rural roads and low-lying areas at greatest risk. Minor flooding impacts remain possible even outside the official watch area.
Residents are urged to avoid flooded roads, check local alerts, and keep devices charged in case of power outages. This summer’s active weather follows a trend of frequent heavy rain events for the region.
Flood Watches remain in effect through 5 a.m. Wednesday, with further advisories possible if conditions worsen overnight.
