Alert archive / California / Red Flag Warnings in 2026
Red Flag Warning 3, NWS Eureka, CA
NWS Eureka, CA issued this red flag warning at Jul 13, 2026, 1:40 PM PDT for Humboldt County, Siskiyou County, Trinity County, California. It took effect at Jul 14, 2026, 1:00 PM PDT. It was in force for 13 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
- Jul 13, 2026, 1:40 PM PDT (20:40 UTC)
- In effect from
- Jul 14, 2026, 1:00 PM PDT
- Expired
- Jul 15, 2026, 2:00 AM PDT
- In force
- 13 hr
- Issued by
- NWS Eureka, CA
Counties Humboldt County, CA, Siskiyou County, CA, Trinity County, CA
The radar
The Eureka (Bunker Hill) radar (KBHX), 107 km from the middle of the area, began a volume at 20:40 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
Salem/Mcnary, OR (KSLE), launched 12:00Z, 8.7 hours before the alert went out and 438 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
- 1402 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 101 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
085 WWUS86 KEKA 132040 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 140 PM PDT Mon Jul 13 2026 CAZ403-409>412-141100- /O.NEW.KEKA.FW.W.0003.260714T2000Z-260715T0900Z/ Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans- Northwestern Trinity Including Salyer and Big Bar- Northeastern Trinity Including Trinity Lake- Eastern Trinity Including Weaverville and Hayfork- Southern Trinity Including Ruth Lake and the Yolla Bollys- 140 PM PDT Mon Jul 13 2026 ...RED FLAG WARNING IN EFFECT FROM 1 PM TUESDAY TO 2 AM PDT WEDNESDAY... The National Weather Service in Eureka has issued a Red Flag Warning, which is in effect from 1 PM Tuesday to 2 AM PDT Wednesday. * AFFECTED AREA...Trinity County, Northeastern Humboldt County, and southwestern Siskiyou County. * THUNDERSTORMS...Isolated to scattered dry thunderstorms Tuesday afternoon and evening. Activity may continue overnight into early Wednesday morning. * OUTFLOW WINDS...Gusty and erratic outflow winds likely with any thunderstorms. Winds may gust to 50 mph or higher with the strongest cells. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ http://weather.gov/eureka
3 follow-up statements
886 WWUS86 KEKA 140752 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 1252 AM PDT Tue Jul 14 2026 CAZ403-409>412-141700- /O.CON.KEKA.FW.W.0003.260714T2000Z-260715T0900Z/ Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans- Northwestern Trinity Including Salyer and Big Bar- Northeastern Trinity Including Trinity Lake- Eastern Trinity Including Weaverville and Hayfork- Southern Trinity Including Ruth Lake and the Yolla Bollys- 1252 AM PDT Tue Jul 14 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 2 AM PDT WEDNESDAY... * AFFECTED AREA...Trinity County, Northeastern Humboldt County, and southwestern Siskiyou County. * THUNDERSTORMS...Isolated to scattered dry thunderstorms Tuesday afternoon and evening. Activity may continue overnight into early Wednesday morning. * OUTFLOW WINDS...Gusty and erratic outflow winds likely with any thunderstorms. Winds may gust to 50 mph or higher with the strongest cells. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior. && $$ http://weather.gov/eureka
704 WWUS86 KEKA 141636 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 936 AM PDT Tue Jul 14 2026 CAZ403-409>412-150900- /O.CON.KEKA.FW.W.0003.260714T2000Z-260715T0900Z/ Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans- Northwestern Trinity Including Salyer and Big Bar- Northeastern Trinity Including Trinity Lake- Eastern Trinity Including Weaverville and Hayfork- Southern Trinity Including Ruth Lake and the Yolla Bollys- 936 AM PDT Tue Jul 14 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 2 AM PDT WEDNESDAY... * AFFECTED AREA...Trinity County, Northeastern Humboldt County, and southwestern Siskiyou County. * THUNDERSTORMS...Isolated to scattered dry thunderstorms Tuesday afternoon and evening. Activity may continue overnight into early Wednesday morning. * OUTFLOW WINDS...Gusty and erratic outflow winds likely with any thunderstorms. Winds may gust to 50 mph or higher with the strongest cells. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. 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. && $$ http://weather.gov/eureka
669 WWUS86 KEKA 150831 RFWEKA Urgent - Fire Weather Message National Weather Service Eureka CA 131 AM PDT Wed Jul 15 2026 CAZ403-409>412-150945- /O.EXP.KEKA.FW.W.0003.000000T0000Z-260715T0900Z/ Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans- Northwestern Trinity Including Salyer and Big Bar- Northeastern Trinity Including Trinity Lake- Eastern Trinity Including Weaverville and Hayfork- Southern Trinity Including Ruth Lake and the Yolla Bollys- 131 AM PDT Wed Jul 15 2026 ...RED FLAG WARNING WILL EXPIRE AT 2 AM PDT EARLY THIS MORNING... $$ http://weather.gov/eureka
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 13, 2:57 AM PDT | Coastal Flood Advisory | EKA | Humboldt | 22 hr |
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.