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OFFICIAL · Fire
2 sources
Observed · Updated
...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. A Red Flag Warning is issued when weather conditions that promote rapid spread of fire which may become life-threatening are forecast. This does not mean there is a fire. These conditions ar
Location 38.635, -122.451. ARC Warning did not create the underlying report.
Official
nws
nws, Oct 16 2026Official
nws
nws, Oct 16 2026The alert type is the category the source published. ARC Warning does not rename it and does not add an outcome the source did not publish.
Official means one official source published the record.
The label describes how the record was filed. It is not a statement about anyone's intent.
High, medium, and low are ARC Warning display labels for how the record was filed. They are not a forecast.
When the source published its own number, such as an earthquake magnitude, that number is the measurement. The display label does not replace it.
Stable URL: https://arcwarning.com/event/611b8e4b-2162-4261-9cbb-50fd0d5f5f76
APA
ARC Warning. (2026). Red Flag Warning issued October 15 at 11:40AM PDT until October 16 at 11:00AM PDT by NWS San Francisco CA. https://arcwarning.com/event/611b8e4b-2162-4261-9cbb-50fd0d5f5f76
MLA
"Red Flag Warning issued October 15 at 11:40AM PDT until October 16 at 11:00AM PDT by NWS San Francisco CA." ARC Warning, 2026-10-16, https://arcwarning.com/event/611b8e4b-2162-4261-9cbb-50fd0d5f5f76.
Plain
Red Flag Warning issued October 15 at 11:40AM PDT until October 16 at 11:00AM PDT by NWS San Francisco CA. ARC Warning. https://arcwarning.com/event/611b8e4b-2162-4261-9cbb-50fd0d5f5f76