Headline:
Dense Fog Advisory issued October 13 at 2:01PM MDT until October 14 at 12:00PM MDT by NWS Great Falls MT
Event:
Dense Fog Advisory
Urgency:
Expected
Effective:
October 13, 2026 - 1:01pm
Expires:
October 14, 2026 - 5:15am
Description:
* WHAT...Highly variable visibility as low as one quarter of a mile
in dense fog.
* WHERE...Canyon Ferry Area, Gallatin Valley, and Missouri
Headwaters.
* WHEN...From 9 PM this evening to noon MDT Wednesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Below freezing temperatures tonight may lead
to a glaze of ice on surfaces, most notably on bridges and
overpasses.
Instruction:
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
Area Description:
Canyon Ferry Area; Missouri Headwaters; Gallatin Valley
Forcast Office:
NWS Great Falls MT
Sender:
w-nws.webmaster@noaa.gov