California - United States   2026-10-15   Thursday   38.51N, -122.47W

St. Helena

California - United States
2026-10-15

Fire Weather Watch issued October 15 at 12:18AM PDT until October 16 at 11:00AM PDT by NWS San Francisco CA

Issue date: 2026-10-15T07:18+00:00

...FIRE WEATHER WATCH IN EFFECT FROM THIS EVENING THROUGH FRIDAY MORNING DUE TO WIND AND LOW RELATIVE HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS... .Moderate offshore winds are expected to develop Thursday night 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 Fire Weather Watch. * AFFECTED AREA...North Bay Interior Mountains. * TIMING...From this evening through Friday morning. * WINDS 20 FOOT...North winds 5 to 15 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...Relative Humidity between 14 to 24 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended.