Moderate Extreme Weather ● Active
Dense Fog Advisory issued October 20 at 2:52AM AKDT until October 20 at 10:00AM AKDT by NWS Anchorage AK, United States of America
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* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Central Susitna Valley and Southern Susitna Valley.
* WHEN...Until 10 AM AKDT this morning.
* IMPACTS...Hazardous driving conditions due to low visibility.
* ADDITIONAL DETAILS...An area of locally dense fog has developed
along the Parks Highway from north of Willow to the Talkeetna Spur
Road. Patchy dense fog is expected to persist across portions of
the Susitna Valley through mid morning Tuesday. The fog may lift
periodically during times of falling snow and rain.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Southern Susitna Valley; Central Susitna Valley |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-20T10:00:00-08:00 |
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 20, 2026 10:53 UTC) · we last heard from WMO Alert Hub (national weather services) 44 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: Southern Susitna Valley; Central Susitna Valley
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
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