NWS Sacramento CAFW.W 0005September 11, 2026
Red Flag Warning: Glenn and Colusa County Coast Range Above 3000 ft and Western Glenn and Colusa County Foothills Between 1000-3000 ft, CA
The National Weather Service office in Sacramento issued a red flag warning for Glenn and Colusa County Coast Range Above 3000 ft and Western Glenn and Colusa County Foothills Between 1000-3000 ft in California, which was in force until 11:00 a.m. local time on September 14. It was the 5th red flag warning the NWS office in Sacramento issued in 2026. California had 6 red flag warnings in September 2026, against 14 in an average September of 2008-2025 (California's red flag warnings by year).
ExpiredWarning
In force for 2 days; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Sacramento CA
- Area
- Glenn and Colusa County Coast Range Above 3000 ft and Western Glenn and Colusa County Foothills Between 1000-3000 ft
- State
- California
- Level
- Warning
- Issued
- 10:02 a.m. PDT, September 11, 2026
- In force from
- 11:00 a.m. PDT, September 12, 2026
- Expires
- 11:00 a.m. PDT, September 14, 2026
- CAP severity, certainty, urgency
- Severe, Likely, Expected
- VTEC event
- KSTO FW.W 0005
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 11 AM PDT MONDAY DUE TO GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR PORTIONS OF NORTHERN CALIFORNIA... The National Weather Service in Sacramento CA has issued a Red Flag Warning. * AFFECTED AREA...The coastal foothills of Glenn and Colusa Counties. * TIMING...From 11 AM Saturday to 11 AM PDT Monday. * WINDS...Gusts 20 to 35 mph. South to southwest winds Saturday morning and afternoon, becoming north to northeast Saturday evening through Monday. Strongest winds in the afternoon and evenings over the weekend. * RELATIVE HUMIDITY...Relative Humidity between 10 to 25 percent. * IMPACTS...Any fires that develop will spread rapidly. Outdoor burning is not recommended.
What the agency told people to do
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.