Dense Fog — Central and Southern Valley, Montana

2025-11-16 · Central and Southern Valley, Montana

Event narrative

The Glasgow airport ASOS site (KGGW) recorded dense fog with 1/4 mile visibility or worse for a period of about 12 hours.

Wider weather episode

After a day of rain and snow, clearing skies and colder air created areas of dense freezing fog near and north of US Highway 2 from the early morning into the afternoon hours of the 16th, in Roosevelt and Richland counties.

Source: NOAA Storm Events Database, event_id 1294995. Narrative written by the NWS forecast office that issued the report.