Dense Fog Advisory Montana | Effective 03/18/2026 05:35

Headline: 
Dense Fog Advisory issued March 18 at 6:35AM MDT until March 18 at 11:00AM MDT by NWS Missoula MT
Event: 
Dense Fog Advisory
Urgency: 
Expected
Effective: 
March 18, 2026 - 5:35am
Expires: 
March 18, 2026 - 10:00am
Description: 
* WHAT...Visibility less than 1000 feet in dense fog. * WHERE...Missoula and the northern Bitterroot Valleys. * WHEN...Until 11 AM MDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Instruction: 
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Area Description: 
Missoula/Bitterroot Valleys
Forcast Office: 
NWS Missoula MT
Sender: 
w-nws.webmaster@noaa.gov