Dense Fog Advisory for Southern Rocky Mountain Front; Southern High Plains; Upper Blackfoot and MacDonald Pass +8 more
Official alert fields
What you need to know
- Applies to
- Canyon Ferry Area, Elkhorn and Boulder Mountains, Gallatin Valley, Gallatin and Madison County Mountains and Centennial Mountains, Gates of the Mountains, Helena Valley, Missouri Headwaters, Northwest Beaverhead County and 3 more
- Effective
- Ends or expires
- Official severity
- Moderate
- Official urgency
- Expected
- Official certainty
- Likely
What is happening
What: Visibility below a quarter of a mile at times in dense fog. Impacts: Low visibility could make driving conditions hazardous. Where: Portions of central, north central, and southwest Montana. When: Until 11 AM MDT this morning.
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...Visibility below a quarter of a mile at times in dense fog. * WHERE...Portions of central, north central, and southwest Montana. * WHEN...Until 11 AM MDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
Official geometry where available
Alert boundary
Lifecycle record
Official revisions
- Alert
Dense Fog Advisory issued October 25 at 4:34AM MDT until October 25 at 11:00AM 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