Dense Fog Advisory for Canyon Ferry Area; Missouri Headwaters; Gallatin Valley
Official alert fields
What you need to know
- Applies to
- Canyon Ferry Area, Gallatin Valley, Missouri Headwaters
- Effective
- Ends or expires
- Official severity
- Moderate
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
What: Highly variable visibility as low as one quarter of a mile in dense fog. Impacts: Low visibility could make driving conditions hazardous. Where: Canyon Ferry Area, Gallatin Valley, and Missouri Headwaters. When: From 9 PM this evening to noon MDT Wednesday.
What the bulletin says to do
If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Full official description
Bulletin details
* 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.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
Dense Fog Advisory issued October 13 at 2:01PM MDT until October 14 at 12:00PM MDT by NWS Great Falls MT
Official revision
Source and limitations
Publisher: Weather Alert Watch. Primary source: NWS Great Falls MT. This page reorganizes official fields and does not add a forecast or expand the affected area.
- CAP status
- Actual
- Message type
- Alert
- Last collected