Alert archive / Oregon / Red Flag Warnings in 2026
Red Flag Warning 21, NWS Medford, OR
NWS Medford, OR issued this red flag warning at Aug 26, 2026, 10:12 AM PDT for Modoc County, California; Harney County, Klamath County, Lake County, Oregon. It took effect at Aug 27, 2026, 2:00 PM PDT. It was in force for 6 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
- Aug 26, 2026, 10:12 AM PDT (17:12 UTC)
- In effect from
- Aug 27, 2026, 2:00 PM PDT
- Expired
- Aug 27, 2026, 8:00 PM PDT
- In force
- 6 hr
- Issued by
- NWS Medford, OR
Counties Modoc County, CA, Harney County, OR, Klamath County, OR, Lake County, OR
The radar
The Medford radar (KMAX), 194 km from the middle of the area, began a volume at 17:16 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, 5.2 hours before the alert went out and 336 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
- 660 m above ground
- 0-6 km bulk shear
- 27 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- 49 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
911 WWUS86 KMFR 261712 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 1012 AM PDT Wed Aug 26 2026 CAZ285-ORZ624-625-270515- /O.UPG.KMFR.FW.A.0010.260827T1800Z-260828T0300Z/ /O.NEW.KMFR.FW.W.0021.260827T2100Z-260828T0300Z/ /O.CON.KMFR.FW.W.0020.260826T1800Z-260827T0300Z/ Modoc County Except for the Surprise Valley- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 1012 AM PDT Wed Aug 26 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONES 285, 624, AND 625... ...RED FLAG WARNING IN EFFECT FROM 2 PM TO 8 PM PDT THURSDAY FOR STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONES 285, 624, AND 625... The National Weather Service in Medford has issued a Red Flag Warning, which is in effect from 2 PM to 8 PM PDT Thursday. The Fire Weather Watch is no longer in effect. * IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...In California...Fire weather zone 285. In Oregon...the southern portions of Fire weather zones 624 and 625. This includes the Wrights Spring Fire in Klamath County. * WIND...South to southwest at 15 to 25 mph with gusts of 30 to 40 mph both days. Winds trend higher Thursday. * HUMIDITY...Daytime humidities down around 8 to 15 percent both days. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... If you have not packed your go kit yet, now is the time to do so. This includes items like important documents and essentials you cannot live without. Fill your vehicle's fuel tank. Visit ready.gov/kit for more information. && PRECAUTIONARY/PREPAREDNESS ACTIONS... Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities. && $$ Visit us at www.weather.gov/Medford
1 follow-up statement
774 WWUS86 KMFR 270746 RFWMFR URGENT - FIRE WEATHER MESSAGE National Weather Service Medford OR 1246 AM PDT Thu Aug 27 2026 CAZ285-ORZ624-625-280300- /O.CON.KMFR.FW.W.0021.260827T2100Z-260828T0300Z/ Modoc County Except for the Surprise Valley- Klamath Basin and the Fremont-Winema National Forest- South Central Oregon Desert including the BLM Land in Eastern Lake and Western Harney Counties- 1246 AM PDT Thu Aug 27 2026 ...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO 8 PM PDT THIS EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONES 285, 624, AND 625... * IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...In California...Fire weather zone 285. In Oregon...the southern portion of Fire weather zones 624 and 625, including the Wrights Spring Fire. * WIND...Southwest 15 to 25 mph with gusts 30 to 40 mph. * HUMIDITY...Minimum humidity 8 to 12 percent. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr PRECAUTIONARY/PREPAREDNESS ACTIONS... If you have not packed your go kit yet, now is the time to do so. This includes items like important documents and essentials you cannot live without. Fill your vehicle's fuel tank. Visit ready.gov/kit for more information. Be sure you're signed up for your county's emergency alert system. Familiarize yourself with your emergency plan and make sure you listen to emergency services. Visit ready.gov/plan for more information. A Red Flag Warning is issued when we identify weather conditions that promote rapid spread of fire which may become life- threatening. This does not mean there is a fire. These conditions are either occurring now or will begin soon. It is important to have multiple ways to receive information from authorities. && $$ Visit us at www.weather.gov/Medford
The office that day
Everything else NWS Medford, OR issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 26, 2:16 PM PDT | Small Craft Advisory | MFR | 5 days |
Nearby
Red Flag Warnings in Oregon, 2026Red 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.