Red Flag Warning
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 The Fire Weather Watch is no longer
in effect.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
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
409 AM PDT Fri Aug 21 2026
ORZ624-220300-
/O.CON.KMFR.FW.W.0017.260821T2100Z-260822T0400Z/
/O.CON.KMFR.FW.A.0009.260822T2100Z-260823T0400Z/
Klamath Basin and the Fremont-Winema National Forest-
409 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...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING 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.
A Fire Weather Watch means that critical fire weather conditions
are possible during the valid watch time. These conditions could
promote the rapid spread of wildfires which could become life-
threatening. Check weather.gov/medford for forecast updates and a
possible upgrade of the this watch to a Red Flag Warning.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
409 AM PDT Fri Aug 21 2026
CAZ281-220300-
/O.CON.KMFR.FW.W.0017.260821T2100Z-260822T0400Z/
Central Siskiyou County Including Shasta Valley-
409 AM PDT Fri Aug 21 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 PM PDT THIS EVENING FOR STRONG GUSTY WIND AND LOW RH FOR FIRE
WEATHER ZONE 281...
A Red Flag Warning has also been issued from 2 PM to 9 PM PDT
Friday.
* IMPACTS...Gusty winds combined with low RH could lead to the
rapid spread of any new or existing fires.
* AFFECTED AREA...In California...Fire weather zone 281,
including the Shasta Valley.
* WIND...South to southwest 15 to 25 mph with gusts up to 30 mph.
* HUMIDITY...Minimum humidity 12 to 17 percent.
* DETAILED URL...View the hazard area in detail at
https://weather.gov/wrh/hazards?wfo=mfr
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Follow all fire restrictions. You can find your county`s
emergency sign up form as well as links to fire restrictions at
weather.gov/medford/wildfire. One less spark, one less wildfire.
Be sure you`re signed up for your county`s emergency alert
system. Familiarize yourself with your emergency plan and make
sure you listen to emergency services. Visit ready.gov/plan for
more information.
A Red Flag Warning is issued when we identify weather conditions
that promote rapid spread of fire which may become life-
threatening. This does not mean there is a fire. These conditions
are either occurring now or will begin soon. It is important to
have multiple ways to receive information from authorities.
&&
$$
URGENT - FIRE WEATHER MESSAGE
National Weather Service Medford OR
409 AM PDT Fri Aug 21 2026
CAZ284-285-220300-
/O.CON.KMFR.FW.W.0017.260821T2100Z-260822T0400Z/
/O.CON.KMFR.FW.A.0009.260822T2100Z-260823T0400Z/
Siskiyou County from the Cascade Mountains East and South to Mt
Shasta-Modoc County Except for the Surprise Valley-
409 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...
...FIRE WEATHER WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING 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.
A Fire Weather Watch means that critical fire weather conditions
are possible during the valid watch time. These conditions could
promote the rapid spread of wildfires which could become life-
threatening. Check weather.gov/medford for forecast updates and a
possible upgrade of the this watch to a Red Flag Warning.
&&
$$
