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OFFICIAL · Severe weather
2 sources
Observed · Updated
* WHAT...Highly variable visibility as low as one quarter of a mile in dense fog. * WHERE...Canyon Ferry Area, Gallatin Valley, Madison River Valley, and Missouri Headwaters. * WHEN...Until noon MDT today. * IMPACTS...Low visibility could make driving conditions hazardous. If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Location 46.330, -111.558. ARC Warning did not create the underlying report.
Official
nws
nws, Oct 13 2026Official
nws
nws, Oct 13 2026Stable URL: https://arcwarning.com/event/3805bdcc-43ee-445f-a84a-b836a1058bca
APA
ARC Warning. (2026). Dense Fog Advisory issued October 13 at 11:15AM MDT until October 13 at 12:00PM MDT by NWS Great Falls MT. https://arcwarning.com/event/3805bdcc-43ee-445f-a84a-b836a1058bca
MLA
"Dense Fog Advisory issued October 13 at 11:15AM MDT until October 13 at 12:00PM MDT by NWS Great Falls MT." ARC Warning, 2026-10-13, https://arcwarning.com/event/3805bdcc-43ee-445f-a84a-b836a1058bca.
Plain
Dense Fog Advisory issued October 13 at 11:15AM MDT until October 13 at 12:00PM MDT by NWS Great Falls MT. ARC Warning. https://arcwarning.com/event/3805bdcc-43ee-445f-a84a-b836a1058bca