Winter Storm — Carroll, Illinois

2025-11-29 to 2025-11-30 · Carroll, Illinois

Event narrative

The COOP observer in Mount Carroll reported 8.8 inches of snow. Trained spotter reports ranged from 8.0 inches 1 mile west northwest of Savanna to 9.0 inches in Lanark.

Wider weather episode

A long duration winter storm tracked across the region Friday night through late Saturday night. Widespread snowfall amounts of 8 to 12 inches. This will likely go down as one of the highest snowfall events for any year for the month of November in northwest Illinois. Numerous accidents including a few jackknifed semis on I-80 and I-74 and several road closures occurred with this event.

Source: NOAA Storm Events Database, event_id 1301689. Narrative written by the NWS forecast office that issued the report.