Moderate Extreme Weather ● Active
Special Weather Statement issued October 26 at 10:46AM MDT by NWS Great Falls MT, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
Patchy dense fog has developed over portions of the Rocky Mountain
Front and the I-15 corridor this morning. Rapid reductions in
visibility down to a quarter mile will be possible through the
early afternoon.
Those traveling should be alert for variable road conditions with
sudden reductions in visibility. Freezing fog can cause isolated slippery
spots on roads. When driving, slow down and use low beam
headlights.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Eastern Glacier, Western Toole, and Central Pondera; Southern High Plains; Eastern Pondera and Eastern Teton |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Observed |
| Cap Expires | 2026-10-26T13:00:00-06:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 1 hour ago (Oct 26, 2026 16:49 UTC) · we last heard from WMO Alert Hub (national weather services) 29 seconds ago
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About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Eastern Glacier, Western Toole, and Central Pondera; Southern High Plains; Eastern Pondera and Eastern Teton
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
When thunder roars, go indoors — lightning risk outdoors, in vehicles, and first aid for strike victims.
Open Lightning Safety Guide →Earlier extreme weather events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.