Moderate Extreme Weather ● Active

Special Weather Statement issued October 31 at 11:36AM PDT by NWS Pendleton OR, United States of America

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

Areas of dense fog have been observed through the Walla Walla
Valley and along the Blue Mountain foothills. Within fog,
visibilities of one- quarter mile or less are expected to persist
locally through the afternoon along Highway 12 and along the
Oregon Washington Highway. Use extra caution while traveling as
visibilities can change quickly. If fog is encountered, use low-
beam headlights and keep plenty of space between you and other
vehicles.

Measurements

Coordinates39.9645, -100.8105
RegionFoothills of the Northern Blue Mountains of Oregon; Foothills of the Blue Mountains of Washington
Location Precisioncountry
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyExpected
Cap CertaintyObserved
Cap Expires2026-10-31T14:15:00-07:00

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 report

This event as JSON · API and licence

Source updated 1 hour ago (Oct 31, 2026 18:37 UTC) · we last heard from WMO Alert Hub (national weather services) 37 seconds ago

On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.

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: Foothills of the Northern Blue Mountains of Oregon; Foothills of the Blue Mountains of Washington

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.