Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
1055 AM PDT Fri Aug 21 2026
...THUNDERSTORMS, GUSTY WINDS, AND LOW RELATIVE HUMIDITY SATURDAY
INTO SUNDAY...
.A strong cold front will move through the region Saturday into
Sunday, bringing a risk for thunderstorms and strong west to
southwest winds. This will lead to critical fire weather
conditions across the region.
WAZ701-702-705>709-221000-
/O.UPG.KOTX.FW.A.0012.260822T1900Z-260823T0500Z/
/O.NEW.KOTX.FW.W.0022.260822T1900Z-260823T0500Z/
Foothills of Northeast Washington (Zone 701)-
Colville Reservation (Zone 702)-
Foothills of Central Washington Cascades (Zone 705)-
Waterville Plateau (Zone 706)-Western Columbia Basin (Zone 707)-
Eastern Columbia Basin - Palouse - Spokane Area (Zone 708)-
Lower Palouse - Snake River (Zone 709)-
1055 AM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 10 PM PDT SATURDAY FOR
WIND AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 701, 702,
705, 706, 707, 708, AND 709...
The National Weather Service in Spokane has issued a Red Flag
Warning for wind and low relative humidity, which is in effect
from noon to 10 PM PDT Saturday. The Fire Weather Watch is no
longer in effect.
* Affected Area: Foothills of Northeast Washington (Zone 701),
Colville Reservation (Zone 702), Foothills of Central
Washington Cascades (Zone 705), Waterville Plateau (Zone 706),
Western Columbia Basin (Zone 707), Eastern Columbia Basin -
Palouse -Spokane Area (Zone 708) and Lower Palouse -Snake
River (Zone 709).
* Winds: West/Southwest 15 to 25 mph with gusts up to 40 mph.
* Relative Humidities: 17 to 25 percent.
* Impacts: Rapid fire spread is possible with any new or ongoing
fires.
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.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
1055 AM PDT Fri Aug 21 2026
...THUNDERSTORMS, GUSTY WINDS, AND LOW RELATIVE HUMIDITY SATURDAY
INTO SUNDAY...
.A strong cold front will move through the region Saturday into
Sunday, bringing a risk for thunderstorms and strong west to
southwest winds. This will lead to critical fire weather
conditions across the region.
WAZ700-221000-
/O.NEW.KOTX.FW.W.0022.260822T2300Z-260823T1800Z/
Selkirk Mountains of Northeast Washington (Zone 700)-
1055 AM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 4 PM SATURDAY TO 11 AM PDT
SUNDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONE 700...
The National Weather Service in Spokane has issued a Red Flag
Warning for thunderstorms, which is in effect from 4 PM Saturday
to 11 AM PDT Sunday.
* Affected Area: Selkirk Mountains of Northeast Washington (Zone
700).
* Affected Area: Northern and Central Idaho Panhandle (Zone 101).
* Thunderstorms: Scattered showers and thunderstorms Saturday
afternoon through Sunday morning.
* Outflow Winds: Gusty outflow winds up to 50 mph.
* Impacts: Lightning strikes will have the potential to start new
fires, and gusty and erratic outflow winds could cause rapid
spread of new and existing wildfires.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
1055 AM PDT Fri Aug 21 2026
...THUNDERSTORMS, GUSTY WINDS, AND LOW RELATIVE HUMIDITY SATURDAY
INTO SUNDAY...
.A strong cold front will move through the region Saturday into
Sunday, bringing a risk for thunderstorms and strong west to
southwest winds. This will lead to critical fire weather
conditions across the region.
IDZ101-221000-
/O.UPG.KOTX.FW.A.0012.260822T2300Z-260823T1800Z/
/O.NEW.KOTX.FW.W.0022.260822T2300Z-260823T1800Z/
Northern and Central Idaho Panhandle (Zone 101)-
1055 AM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 4 PM SATURDAY TO 11 AM PDT
SUNDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONE 101...
The National Weather Service in Spokane has issued a Red Flag
Warning for thunderstorms, which is in effect from 4 PM Saturday
to 11 AM PDT Sunday. The Fire Weather Watch is no longer in
effect.
* Affected Area: Northern and Central Idaho Panhandle (Zone 101).
* Thunderstorms: Scattered showers and thunderstorms Saturday
afternoon through Sunday morning.
* Outflow Winds: Gusty outflow winds up to 50 mph.
* Impacts: Lightning strikes will have the potential to start new
fires, and gusty and erratic outflow winds could cause rapid
spread of new and existing wildfires.
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.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
1055 AM PDT Fri Aug 21 2026
...THUNDERSTORMS, GUSTY WINDS, AND LOW RELATIVE HUMIDITY SATURDAY
INTO SUNDAY...
.A strong cold front will move through the region Saturday into
Sunday, bringing a risk for thunderstorms and strong west to
southwest winds. This will lead to critical fire weather
conditions across the region.
WAZ696>699-704-221000-
/O.UPG.KOTX.FW.A.0012.260822T1800Z-260823T1500Z/
/O.NEW.KOTX.FW.W.0022.260822T1800Z-260823T1500Z/
East Washington Central Cascades (Zone 696)-
East Portion of North Cascades National Park/Lake Chelan National
Recreation Area (Zone 697)-
East Washington North Cascades (Zone 698)-
Okanogan Highlands and Kettle Mountains (Zone 699)-
Methow Valley (Zone 704)-
1055 AM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 8 AM PDT
SUNDAY FOR THUNDERSTORMS FOR FIRE WEATHER ZONES 696, 697, 698,
699, AND 704...
The National Weather Service in Spokane has issued a Red Flag
Warning for thunderstorms, which is in effect from 11 AM Saturday
to 8 AM PDT Sunday. The Fire Weather Watch is no longer in
effect.
* Affected Area: East Washington Central Cascades (Zone 696),
East Portion of North Cascades National Park/Lake Chelan
National Recreation Area (Zone 697), East Washington North
Cascades (Zone 698), Okanogan Highlands and Kettle Mountains
(Zone 699) and Methow Valley (Zone 704).
* Thunderstorms: Scattered showers and thunderstorms Saturday
through Sunday morning.
* Outflow Winds: Gusty outflow winds up to 40 mph.
* Impacts: Lightning strikes will have the potential to start new
fires, and gusty and erratic outflow winds could cause rapid
spread of new and existing wildfires.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Spokane WA
1055 AM PDT Fri Aug 21 2026
...THUNDERSTORMS, GUSTY WINDS, AND LOW RELATIVE HUMIDITY SATURDAY
INTO SUNDAY...
.A strong cold front will move through the region Saturday into
Sunday, bringing a risk for thunderstorms and strong west to
southwest winds. This will lead to critical fire weather
conditions across the region.
WAZ703-221000-
/O.UPG.KOTX.FW.A.0012.260822T1800Z-260823T1500Z/
/O.NEW.KOTX.FW.W.0022.260822T1800Z-260823T1500Z/
Okanogan Valley (Zone 703)-
1055 AM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM SATURDAY TO 8 AM PDT
SUNDAY FOR THUNDERSTORMS, WIND, AND LOW RELATIVE HUMIDITY FOR
FIRE WEATHER ZONE 703...
The National Weather Service in Spokane has issued a Red Flag
Warning for thunderstorms, wind, and low relative humidity, which
is in effect from 11 AM Saturday to 8 AM PDT Sunday. The Fire
Weather Watch is no longer in effect.
* Affected Area: Okanogan Valley (Zone 703).
* Thunderstorms: Scattered showers and thunderstorms Saturday
afternoon through Sunday morning.
* Timing of Thunderstorms: Best chances for thunderstorms are
from 11 AM Saturday morning through 8 AM Sunday morning.
* Outflow Winds: Gusty outflow winds up to 50 mph.
* Impacts: Lightning strikes will have the potential to start new
fires, and gusty and erratic outflow winds could cause rapid
spread of new and existing wildfires.
* General Winds: South winds 15 to 20 mph with gusts up to 40
mph.
* Timing of General Winds: Peak general winds will be seen from
noon to 10 PM Saturday.
* Relative Humidities: 20 to 25 percent.
* Impacts: Rapid fire spread is possible with any new or ongoing
fires.
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.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
930 AM PDT Fri Aug 21 2026
ORZ625-220430-
/O.UPG.KMFR.FW.A.0009.260822T2100Z-260823T0400Z/
/O.NEW.KMFR.FW.W.0018.260822T2100Z-260823T0400Z/
South Central Oregon Desert including the BLM Land in Eastern
Lake and Western Harney Counties-
930 AM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 9 PM PDT SATURDAY FOR
STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONE 625...
* IMPACTS...Gusty winds combined with low RH could lead to the
rapid spread of any new or existing fires.
* AFFECTED AREA...In Oregon...Fire weather zone 625, including
the high desert of Lake County and the Hart Mountain Antelope
Refuge.
* WIND...South to southwest 15 to 25 mph with with gusts 30 to
35 mph.
* HUMIDITY...Minimum humidity 10 to 15 percent.
* DETAILED URL...View the hazard area in detail at
https://weather.gov/wrh/hazards?wfo=mfr
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Follow all fire restrictions. You can find your county`s
emergency sign up form as well as links to fire restrictions at
weather.gov/medford/wildfire. One less spark, one less wildfire.
Be sure you`re signed up for your county`s emergency alert
system. Familiarize yourself with your emergency plan and make
sure you listen to emergency services. Visit ready.gov/plan for
more information.
A Red Flag Warning is issued when we identify weather conditions
that promote rapid spread of fire which may become life-
threatening. This does not mean there is a fire. These conditions
are either occurring now or will begin soon. It is important to
have multiple ways to receive information from authorities.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
930 AM PDT Fri Aug 21 2026
ORZ624-220430-
/O.UPG.KMFR.FW.A.0009.260822T2100Z-260823T0400Z/
/O.NEW.KMFR.FW.W.0018.260822T2100Z-260823T0400Z/
/O.CON.KMFR.FW.W.0017.260821T2100Z-260822T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
930 AM PDT Fri Aug 21 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE
WEATHER ZONE 624...
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 9 PM PDT SATURDAY FOR
STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONE 624...
* IMPACTS...Gusty winds combined with low RH could lead to the
rapid spread of any new or existing fires.
* AFFECTED AREA...In Oregon, Fire weather zone 624, including the
Wrights Spring Fire and the Fremont-Winema National Forest.
* WIND...South to southwest 15 to 20 mph with gusts up to 30
mph.
* HUMIDITY...Minimum humidity around 12 to 18 percent.
* DETAILED URL...View the hazard area in detail at
https://weather.gov/wrh/hazards?wfo=mfr
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Follow all fire restrictions. You can find your county`s
emergency sign up form as well as links to fire restrictions at
weather.gov/medford/wildfire. One less spark, one less wildfire.
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.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
930 AM PDT Fri Aug 21 2026
CAZ281-220400-
/O.CON.KMFR.FW.W.0017.260821T2100Z-260822T0400Z/
Central Siskiyou County Including Shasta Valley-
930 AM PDT Fri Aug 21 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE
WEATHER ZONE 281...
* IMPACTS...Gusty winds combined with low RH could lead to the
rapid spread of any new or existing fires.
* AFFECTED AREA...In California...Fire weather zone 281,
including the Shasta Valley.
* WIND...South to southwest 15 to 25 mph with gusts up to 30
mph.
* HUMIDITY...Minimum humidity 12 to 17 percent.
* DETAILED URL...View the hazard area in detail at
https://weather.gov/wrh/hazards?wfo=mfr
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Follow all fire restrictions. You can find your county`s
emergency sign up form as well as links to fire restrictions at
weather.gov/medford/wildfire. One less spark, one less wildfire.
Be sure you`re signed up for your county`s emergency alert
system. Familiarize yourself with your emergency plan and make
sure you listen to emergency services. Visit ready.gov/plan for
more information.
A Red Flag Warning is issued when we identify weather conditions
that promote rapid spread of fire which may become life-
threatening. This does not mean there is a fire. These conditions
are either occurring now or will begin soon. It is important to
have multiple ways to receive information from authorities.
&&
$$
Visit us at www.weather.gov/Medford
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
930 AM PDT Fri Aug 21 2026
CAZ284-285-220430-
/O.UPG.KMFR.FW.A.0009.260822T2100Z-260823T0400Z/
/O.NEW.KMFR.FW.W.0018.260822T2100Z-260823T0400Z/
/O.CON.KMFR.FW.W.0017.260821T2100Z-260822T0400Z/
Siskiyou County from the Cascade Mountains East and South to Mt
Shasta-Modoc County Except for the Surprise Valley-
930 AM PDT Fri Aug 21 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE
WEATHER ZONES 284 AND 285...
...RED FLAG WARNING IN EFFECT FROM 2 PM TO 9 PM PDT SATURDAY FOR
STRONG GUSTY WIND AND LOW RH FOR FIRE WEATHER ZONES 284 AND 285...
* IMPACTS...Gusty winds combined with low RH could lead to the
rapid spread of any new or existing fires.
* AFFECTED AREA...In California...Fire weather zones 284 and
285, including the Modoc National Forest.
* WIND...South to southwest 15 to 20 mph with gusts 25 to 30
mph.
* HUMIDITY...Minimum humidity 10 to 17 percent.
* DETAILED URL...View the hazard area in detail at
https://weather.gov/wrh/hazards?wfo=mfr
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Follow all fire restrictions. You can find your county`s
emergency sign up form as well as links to fire restrictions at
weather.gov/medford/wildfire. One less spark, one less wildfire.
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.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
737 AM PDT Fri Aug 21 2026
CAZ270-278-NVZ458-221445-
/O.UPG.KREV.FW.A.0008.260822T1800Z-260823T0600Z/
/O.NEW.KREV.FW.W.0009.260822T1800Z-260823T0600Z/
Surprise Valley California-Eastern Lassen County-
Northern Washoe County-
737 AM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM PDT SATURDAY
FOR GUSTY WINDS AND LOW HUMIDITY FOR NORTHEASTERN CALIFORNIA AND
FAR NORTHEASTERN NEVADA...
The National Weather Service in Reno has issued a Red Flag
Warning for gusty winds and low humidity, which is in effect from
11 AM to 11 PM PDT Saturday. The Fire Weather Watch is no longer
in effect.
* CHANGES...Upgraded the Fire Weather Watch to a Red Flag Warning.
* Affected Area...Fire Weather Zone 270 Surprise Valley
California, Fire Weather Zone 278 Eastern Lassen County, Fire
Weather Zone 458 Northern Washoe County.
* Winds...Southwest 15 to 25 mph with gusts up to 40 mph.
* Humidity...As low as 12 percent.
* Duration...3 to 6 hours.
* Impacts...The combination of gusty winds and low humidity can
cause fire to rapidly grow in size and intensity before first
responders can contain them.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Reno NV
737 AM PDT Fri Aug 21 2026
NVZ420-221445-
/O.NEW.KREV.FW.W.0009.260822T1800Z-260823T0600Z/
Northern Sierra Front including Carson City, Douglas, Storey,
Southern Washoe, Western Lyon, and Far Southern Lassen Counties-
737 AM PDT Fri Aug 21 2026
...RED FLAG WARNING IN EFFECT FROM 11 AM TO 11 PM PDT SATURDAY
FOR GUSTY WINDS AND LOW HUMIDITY FOR THE NORTHERN SIERRA FRONT...
The National Weather Service in Reno has issued a Red Flag Warning
for gusty winds and low humidity, which is in effect from 11 AM
to 11 PM PDT Saturday.
* Affected Area...Fire Weather Zone 420 Northern Sierra Front
including Carson City, Douglas, Storey, Southern Washoe,
Western Lyon, and Far Southern Lassen Counties.
* Winds...Southwest 15 to 25 mph with gusts up to 40 mph.
* Humidity...As low as 18 percent.
* Duration...3 to 6 hours.
* Impacts...The combination of gusty winds and low humidity can
cause fire to rapidly grow in size and intensity before first
responders can contain them.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Avoid outdoor activities that can cause a spark near dry
vegetation, such as yard work, target shooting, or campfires.
Follow local fire restrictions. Check weather.gov/reno for
updates and livingwithfire.info for preparedness tips.
&&
$$
http://weather.gov/reno
