# Dense Fog Advisory: Canyon Ferry Area; Missouri Headwaters; Gallatin Valley — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/a85349713563cb4b

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-10-13 14:01 ingested 2026-10-14 02:57

[original source ↗](http://www.weather.gov/)

## extract

Dense Fog Advisory — Canyon Ferry Area; Missouri Headwaters; Gallatin Valley
Severity: Moderate. Certainty: Likely.
* 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.

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.