Dense Fog Advisory issued October 13 at 6:55AM MDT until October 13 at 12:00PM MDT by NWS Great Falls MT

**Dense Fog Advisory issued October 13 at 6:55AM MDT until October 13 at 12:00PM MDT by NWS Great Falls MT**

* WHAT...Highly variable visibility as low as one quarter of a mile in dense fog.

* WHERE...Portions of central, north central, and southwest Montana.

* WHEN...Until noon MDT today.

* IMPACTS...Low visibility could make driving conditions hazardous.

* ADDITIONAL DETAILS...Below freezing temperatures may lead to a glaze of ice on surfaces, most notably on bridges and overpasses.

**What You Should Do:**

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.

**Alert Details:**

- **Severity:** Moderate

- **Urgency:** Expected

- **Issued by:** NWS Great Falls MT

- **Effective:** Oct 13, 2026 6:55 AM UTC

- **Expires:** Oct 13, 2026 12:00 PM UTC

*This alert was automatically distributed from the National Weather Service via the IPAWS All-Hazards Information Feed.*