Severe Wildfire ● Monitoring
Red Flag Warning issued October 15 at 11:40AM PDT until October 16 at 11:00AM PDT by NWS San Francisco CA, 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.
...RED FLAG WARNING IN EFFECT FROM 10 PM THIS EVENING TO 11 AM PDT
FRIDAY DUE TO WIND AND LOW RELATIVE HUMIDITY FOR NORTH BAY INTERIOR
MOUNTAINS...
.Moderate offshore winds will develop Thursday evening into Friday
morning over the North Bay Interior Mountains. Conditions will be
very dry with very poor overnight humidity recoveries only reaching
14 to 24 percent. Rapid fire spread is possible given the combination
of gusty northerly winds and very dry overnight conditions.
The National Weather Service in San Francisco CA has issued a Red
Flag Warning in effect from 10 PM this evening to 11 AM PDT Friday.
* AFFECTED AREA...North Bay Interior Mountains.
* TIMING...From 10 PM this evening to 11 AM PDT Friday.
* WINDS 20 FOOT...North winds 20 to 30 mph with gusts up to 40 mph.
The highest peaks above 4000ft will see gusts up to 60 mph.
* RELATIVE HUMIDITY...Relative Humidity between 16 to 20 percent.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | North Bay Interior Mountains |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Likely |
| Cap Expires | 2026-10-16T11:00:00-07:00 |
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 reportThis event as JSON · API and licence
Source updated 4 days ago (Oct 15, 2026 18:41 UTC) · we last heard from WMO Alert Hub (national weather services) 11 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: North Bay Interior Mountains
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.
Defensible space, evacuation go-bags, smoke protection, and returning home safely after a wildfire.
Open Wildfire Safety Guide →Earlier wildfire 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.