Alert archive / California / Red Flag Warnings in 2026
Red Flag Warning 1, NWS Eureka, CA
NWS Eureka, CA issued this red flag warning at Jun 9, 2026, 9:44 AM PDT for Lake County, California. It took effect at Jun 10, 2026, 11:00 PM PDT. It was in force for 18 hr. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Jun 9, 2026, 9:44 AM PDT (16:44 UTC)
- In effect from
- Jun 10, 2026, 11:00 PM PDT
- Expired
- Jun 11, 2026, 5:00 PM PDT
- In force
- 18 hr
- Issued by
- NWS Eureka, CA
County Lake County, CA
The radar
The Beale AFB radar (KBBX), 106 km from the middle of the area, began a volume at 16:46 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Oakland, CA (KOAK), launched 12:00Z, 4.7 hours before the alert went out and 160 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 489 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
583 WWUS86 KEKA 091644 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 944 AM PDT Tue Jun 9 2026 CAZ419-420-100045- /O.NEW.KEKA.FW.W.0001.260611T0600Z-260611T1600Z/ Eastern Lake Including Clearlake and Middletown- Southern Lake Including Cobb and Konocti- 944 AM PDT Tue Jun 9 2026 ...RED FLAG WARNING IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM PDT THURSDAY... The National Weather Service in Eureka has issued a Red Flag Warning, which is in effect from 11 PM Wednesday to 9 AM PDT Thursday. * AFFECTED AREA...Fire weather zone 419.Fire weather zone 420. * WIND...North to northeast winds will increase overnight to 15 to 30 mph with gusts to 40 mph on the ridges. * HUMIDITY...Recoveries on the ridges are only expected to be around 20 to 40 percent Thursday morning. * IMPACTS...any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ http://weather.gov/eureka
7 follow-up statements
536 WWUS86 KEKA 092012 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 112 PM PDT Tue Jun 9 2026 CAZ419-420-100415- /O.CON.KEKA.FW.W.0001.260611T0600Z-260611T1600Z/ Eastern Lake Including Clearlake and Middletown- Southern Lake Including Cobb and Konocti- 112 PM PDT Tue Jun 9 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM PDT THURSDAY... * AFFECTED AREA...Fire weather zone 419.Fire weather zone 420. * WIND...North to northeast winds will increase overnight to15 to 30 mph with gusts to 40 mph on the ridges. * HUMIDITY...Recoveries on the ridges are only expected to be around 20 to 40 percent Thursday morning. * IMPACTS...any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ http://weather.gov/eureka
306 WWUS86 KEKA 100402 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 902 PM PDT Tue Jun 9 2026 CAZ419-420-101215- /O.CON.KEKA.FW.W.0001.260611T0600Z-260611T1600Z/ Eastern Lake Including Clearlake and Middletown- Southern Lake Including Cobb and Konocti- 902 PM PDT Tue Jun 9 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM WEDNESDAY TO 9 AM PDT THURSDAY... * AFFECTED AREA...Fire weather zone 419 and 420. * WIND...North to northeast winds will increase Wednesday night to 15 to 30 mph with gusts to 40 mph on the ridges through Thursday morning. * HUMIDITY...Recoveries on the ridges are only expected to be around 20 to 40 percent Thursday morning. * IMPACTS...Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ http://weather.gov/eureka
809 WWUS86 KEKA 101150 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 450 AM PDT Wed Jun 10 2026 CAZ419-420-102200- /O.CON.KEKA.FW.W.0001.260611T0600Z-260611T1600Z/ Eastern Lake Including Clearlake and Middletown- Southern Lake Including Cobb and Konocti- 450 AM PDT Wed Jun 10 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT THURSDAY... * AFFECTED AREA...Southeastern Lake County. * WIND...North to northeast winds will increase Wednesday night to 15 to 30 mph with gusts to 40 mph on the ridges through Thursday morning. * HUMIDITY...Recoveries on the ridges are only expected to be around 20 to 40 percent Thursday morning. * IMPACTS...Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ http://weather.gov/eureka
202 WWUS86 KEKA 102021 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 121 PM PDT Wed Jun 10 2026 CAZ419-110800- /O.EXT.KEKA.FW.W.0001.260611T0600Z-260612T0000Z/ Eastern Lake Including Clearlake and Middletown- 121 PM PDT Wed Jun 10 2026 ...RED FLAG WARNING NOW IN EFFECT FROM 11 PM THIS EVENING TO 5 PM PDT THURSDAY... * AFFECTED AREA...Southeastern Lake County. * WIND...North to northeast winds will increase Wednesday night to 15 to 30 mph with gusts to 40 mph on the ridges through Thursday morning. Winds will diminish in the afternoon to around 10 to 20 mph. * HUMIDITY...Recoveries on the ridges are only expected to be around 20 to 40 percent Thursday morning. Thursday afternoon the RH is expected to drop to 10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ CAZ420-110800- /O.CON.KEKA.FW.W.0001.260611T0600Z-260611T1600Z/ Southern Lake Including Cobb and Konocti- 121 PM PDT Wed Jun 10 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 9 AM PDT THURSDAY... * AFFECTED AREA...Southeastern Lake County. * WIND...North to northeast winds will increase Wednesday night to 15 to 30 mph with gusts to 40 mph on the ridges through Thursday morning. Winds will diminish to 5 to 15 mph in the afternoon. * HUMIDITY...Recoveries on the ridges are only expected to be around 20 to 40 percent Thursday morning. Humidity is expected to drop to around 10 to 20 percent in the afternoon. * IMPACTS...Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ http://weather.gov/eureka
240 WWUS86 KEKA 110413 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 913 PM PDT Wed Jun 10 2026 CAZ419-111700- /O.CON.KEKA.FW.W.0001.260611T0600Z-260612T0000Z/ Eastern Lake Including Clearlake and Middletown- 913 PM PDT Wed Jun 10 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THURSDAY... * AFFECTED AREA...Southeastern Lake County. * WIND...North to northeast winds will increase Wednesday night to 15 to 30 mph with gusts to 40 mph on the ridges through Thursday morning. Winds will diminish in the afternoon to around 10 to 20 mph. * HUMIDITY...Recoveries on the ridges are only expected to be around 20 to 40 percent Thursday morning. Thursday afternoon the RH is expected to drop to 10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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. && $$ CAZ420-111600- /O.CON.KEKA.FW.W.0001.260611T0600Z-260611T1600Z/ Southern Lake Including Cobb and Konocti- 913 PM PDT Wed Jun 10 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THURSDAY... * AFFECTED AREA...Southeastern Lake County. * WIND...North to northeast winds will increase Wednesday night to 15 to 30 mph with gusts to 40 mph on the ridges through Thursday morning. Winds will diminish to 5 to 15 mph in the afternoon. * HUMIDITY...Recoveries on the ridges are only expected to be around 20 to 40 percent Thursday morning. Humidity is expected to drop to around 10 to 20 percent in the afternoon. * IMPACTS...Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ http://weather.gov/eureka
918 WWUS86 KEKA 111552 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 852 AM PDT Thu Jun 11 2026 CAZ420-111700- /O.EXP.KEKA.FW.W.0001.000000T0000Z-260611T1600Z/ Southern Lake Including Cobb and Konocti- 852 AM PDT Thu Jun 11 2026 ...RED FLAG WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING... Low RH is expected this afternoon and winds will continue to diminish. $$ CAZ419-120000- /O.CON.KEKA.FW.W.0001.000000T0000Z-260612T0000Z/ Eastern Lake Including Clearlake and Middletown- 852 AM PDT Thu Jun 11 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT THIS AFTERNOON... * AFFECTED AREA...Southeastern Lake County. * WIND...North to northeast winds will diminish in the afternoon to around 10 to 20 mph. * HUMIDITY...Thursday afternoon the RH is expected to drop to 10 to 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ http://weather.gov/eureka
497 WWUS86 KEKA 120008 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 508 PM PDT Thu Jun 11 2026 CAZ419-120115- /O.EXP.KEKA.FW.W.0001.000000T0000Z-260612T0000Z/ Eastern Lake Including Clearlake and Middletown- 508 PM PDT Thu Jun 11 2026 ...RED FLAG WARNING HAS EXPIRED... $$ http://weather.gov/eureka
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 9, 2:51 PM PDT | Gale Warning | EKA | 4 days | |
| Jun 9, 4:48 PM PDT | Heat Advisory | EKA | Lake, Mendocino | 4 days |
Nearby
Red Flag Warnings in California, 2026Every red flag warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.