Alert archive / California / Red Flag Warnings in 2021

Red Flag Warning 9, NWS Sacramento, CA

August 29, 2021

NWS Sacramento, CA issued this red flag warning at Aug 29, 2021, 9:30 AM PDT. It took effect at Aug 30, 2021, 11:00 AM PDT. It was in force for 60 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 29, 2021, 9:30 AM PDT (16:30 UTC)
In effect from
Aug 30, 2021, 11:00 AM PDT
Expired
Sep 1, 2021, 11:00 PM PDT
In force
60 hr
Issued by
NWS Sacramento, CA

The text

As transmitted.

907 
WWUS86 KSTO 291630
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
930 AM PDT Sun Aug 29 2021

...Red Flag Warning Monday through Tuesday Evening for the Sierra
Nevada and Southern Cascades...

.Gusty west to southwest winds are forecast to develop over the
Northern Sierra Nevada and Southern Cascades this afternoon and
lasting through Wednesday. The strongest winds are expected late 
Monday morning through Tuesday evening, which combined with low 
humidity and extremely dry fuels will lead to critical fire 
weather conditions during this timeframe. Elevated fire weather 
conditions are possible this afternoon through Monday morning over
mountain ridges and near wind prone gaps and canyons and may 
continue into Wednesday due to locally gusty winds and lower 
humidity.

CAZ214-221-268-269-301500-
/O.UPG.KSTO.FW.A.0006.210830T1800Z-210901T0600Z/
/O.NEW.KSTO.FW.W.0009.210830T1800Z-210901T0600Z/
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
930 AM PDT Sun Aug 29 2021

...RED FLAG WARNING IN EFFECT FROM 11 AM MONDAY TO 11 PM PDT
TUESDAY FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES 
214, 221, 268, AND 269...

The National Weather Service in Sacramento has issued a Red Flag
Warning, which is in effect from 11 AM Monday to 11 PM PDT
Tuesday. The Fire Weather Watch is no longer in effect. 

* AFFECTED AREA...The Burney Basin, mountains of western Plumas
  County and of eastern Shasta County, and west slope of the
  Sierra Nevada, including fire weather zones 214, 221, 268, and
  269. This includes the Caldor Fire and portions of the Dixie
  Fire.

* WIND...West to southwest wind gusts of 20 to 35 mph. Strongest 
  winds expected over higher elevations and near favorably 
  oriented canyons. 

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate to
  poor overnight recoveries.

* IMPACTS...Any active fires or new 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.

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ213-220-266-267-301500-
/O.NEW.KSTO.FW.W.0009.210830T1800Z-210901T0600Z/
Eastern Portion of Shasta/Trinity NF-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and ElDorado Units-
930 AM PDT Sun Aug 29 2021

...RED FLAG WARNING IN EFFECT FROM 11 AM MONDAY TO 11 PM PDT
TUESDAY FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 
213, 220, 266, AND 267...

The National Weather Service in Sacramento has issued a Red Flag
Warning, which is in effect from 11 AM Monday to 11 PM PDT
Tuesday. 

* AFFECTED AREA...Portions of the foothills along the western
  slopes of the Sierra Nevada, southern Cascades, and eastern
  Shasta County mountains, including portions of fire weather
  zones 213, 220, 266, and 267.

* WIND...West to southwest wind gusts of 20 to 35 mph. Strongest 
  winds expected over higher elevations and near favorably 
  oriented canyons. 

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate to
  poor overnight recoveries.

* IMPACTS...Any active fires or new 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.

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
10 follow-up statements
045 
WWUS86 KSTO 292108
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
208 PM PDT Sun Aug 29 2021

...Red Flag Warning Monday through Tuesday Evening for the Sierra
Nevada and Southern Cascades...

.Gusty west to southwest winds are forecast to develop over the
Northern Sierra Nevada and Southern Cascades this afternoon and
lasting through Wednesday. The strongest winds are expected late
Monday morning through Tuesday evening which combined with low 
humidity and extremely dry fuels will lead to critical fire 
weather conditions during this timeframe. Elevated fire weather 
conditions are also possible this afternoon through Monday morning
over mountain ridges and near wind prone gaps and canyons and may
continue into Wednesday due to locally gusty winds and lower 
humidity.

CAZ213-214-220-221-266>269-301600-
/O.CON.KSTO.FW.W.0009.210830T1800Z-210901T0600Z/
Eastern Portion of Shasta/Trinity NF-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-Stanislaus NF West of the Sierra Crest-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and ElDorado Units-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
208 PM PDT Sun Aug 29 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM MONDAY TO 11 PM
PDT TUESDAY FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER 
ZONES 213, 214, 220, 221, 266, 267, 268, AND 269...

* AFFECTED AREA...The Burney Basin, mountains of western Plumas
  County and of eastern Shasta County, west slope of the Sierra
  Nevada, and portions of the associated foothills, including fire
  weather zones 213, 214, 220, 221, 266, 267, 268, and 269. This
  includes the Caldor Fire and portions of the Dixie Fire.

* WIND...West to southwest wind gusts of 20 to 35 mph. 
  Strongest winds expected over higher elevations and near 
  favorably oriented canyons.

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate 
  to poor overnight recoveries. 

* IMPACTS...Any active fires or new 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.

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
264 
WWUS86 KSTO 300454
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
954 PM PDT Sun Aug 29 2021

...Red Flag Warning Monday through Tuesday Evening for the Sierra
Nevada and Southern Cascades...

.Gusty west/southwest winds will continue over the the Northern 
Sierra Nevada and southern Cascades. The strongest winds are 
expected late Monday morning through Tuesday evening, which 
combined with extremely dry fuels and low humidity will lead to 
critical fire weather conditions. New or existing wildfires will 
have the potential for rapid spread and growth under these 
conditions.

CAZ213-214-220-221-266>269-301500-
/O.CON.KSTO.FW.W.0009.210830T1800Z-210901T0600Z/
Eastern Portion of Shasta/Trinity NF-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-Stanislaus NF West of the Sierra Crest-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and ElDorado Units-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
954 PM PDT Sun Aug 29 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM MONDAY TO 11 PM
PDT TUESDAY FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER
ZONES 213, 214, 220, 221, 266, 267, 268, AND 269...

* AFFECTED AREA...The Burney Basin, mountains of western Plumas 
  County and of eastern Shasta County, west slope of the Sierra 
  Nevada, and portions of the associated foothills, including 
  fire weather zones 213, 214, 220, 221, 266, 267, 268, and 269. 
  This includes the Caldor Fire and portions of the Dixie Fire. 

* WIND...West to southwest wind gusts of 20 to 35 mph, locally
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate 
  to poor overnight recoveries.

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
942 
WWUS86 KSTO 300945
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
245 AM PDT Mon Aug 30 2021

...Red Flag Warning Today through Tuesday Evening for the Sierra 
Nevada and Southern Cascades...

.Gusty west/southwest winds are expected over the Northern Sierra
Nevada and southern Cascades later this morning through Tuesday 
evening with the strongest winds Tuesday afternoon into the
evening. These winds combined with extremely dry fuels and low 
humidity will lead to critical fire weather conditions. New or 
existing wildfires will have the potential for rapid spread and 
growth under these conditions.

CAZ213-214-220-221-266>269-310000-
/O.CON.KSTO.FW.W.0009.210830T1800Z-210901T0600Z/
Eastern Portion of Shasta/Trinity NF-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-Stanislaus NF West of the Sierra Crest-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and ElDorado Units-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
245 AM PDT Mon Aug 30 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 AM THIS MORNING TO
11 PM PDT TUESDAY FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE
WEATHER ZONES 213, 214, 220, 221, 266, 267, 268, AND 269...

* AFFECTED AREA...The Burney Basin, mountains of western Plumas 
  County and of eastern Shasta County, west slope of the Sierra 
  Nevada, and portions of the associated foothills, including 
  fire weather zones 213, 214, 220, 221, 266, 267, 268, and 269. 
  This includes the Caldor Fire and portions of the Dixie Fire. 

* WIND...West to southwest wind gusts of 20 to 35 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate 
  to poor overnight recoveries.

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
434 
WWUS86 KSTO 301738
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
1038 AM PDT Mon Aug 30 2021

...Red Flag Warning Today through Tuesday Evening for the Northern 
Sierra Nevada and Southern Cascades...

...Red Flag Warning Continues through Wednesday Evening for the
Northern Sierra Nevada...

.Gusty west/southwest winds are expected over the Northern Sierra
Nevada and southern Cascades later this morning through Tuesday
evening with the strongest winds Tuesday afternoon into the
evening. These winds combined with extremely dry fuels and low
humidity will lead to critical fire weather conditions. New or
existing wildfires will have the potential for rapid spread and
growth under these conditions. Gusty southwest winds and low
humidity continue through Wednesday evening over the northern 
Sierra Nevada, so the Red Flag Warning has been extended there.

CAZ221-269-311200-
/O.EXT.KSTO.FW.W.0009.210830T1800Z-210902T0600Z/
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
1038 AM PDT Mon Aug 30 2021

...RED FLAG WARNING CONTINUES UNTIL 11 PM PDT WEDNESDAY FOR GUSTY
WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES 221 AND 269...

* AFFECTED AREA...Fire weather zone 221.Fire weather zone 269.

* WIND...West to southwest wind gusts of 20 to 25 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 9 to 20 percent with moderate to
  poor overnight recoveries.

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ213-214-220-266>268-311200-
/O.CON.KSTO.FW.W.0009.210830T1800Z-210901T0600Z/
Eastern Portion of Shasta/Trinity NF-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and ElDorado Units-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
1038 AM PDT Mon Aug 30 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT TUESDAY FOR
GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES 213, 214, 220,
266, 267, AND 268...

* AFFECTED AREA...Fire weather zone 213.Fire weather zone 
  214.Fire weather zone 220.Fire weather zone 266.Fire weather 
  zone 267.Fire weather zone 268. 

* WIND...West to southwest wind gusts of 20 to 35 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate 
  to poor overnight recoveries.

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
723 
WWUS86 KSTO 311000
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
300 AM PDT Tue Aug 31 2021

...Red Flag Warning through Tuesday Evening for the Northern 
Sierra Nevada and Southern Cascades...

...Red Flag Warning Continues through Wednesday Evening for the
Northern Sierra Nevada...

.Gusty west/southwest winds will continue over the Northern 
Sierra Nevada and southern Cascades through Tuesday evening with 
the strongest winds this afternoon into the evening. Gusty winds
will linger into Wednesday over portions of the Sierra Nevada. These
winds combined with extremely dry fuels and low humidity will 
lead to critical fire weather conditions. New or existing 
wildfires will have the potential for rapid spread and growth 
under these conditions. 

CAZ213-214-220-266>268-010000-
/O.CON.KSTO.FW.W.0009.000000T0000Z-210901T0600Z/
Eastern Portion of Shasta/Trinity NF-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and ElDorado Units-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
300 AM PDT Tue Aug 31 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES
213, 214, 220, 266, 267, AND 268...

* AFFECTED AREA...Fire weather zone 213.Fire weather zone 
  214.Fire weather zone 220.Fire weather zone 266.Fire weather 
  zone 267.Fire weather zone 268. 

* WIND...West to southwest wind gusts of 20 to 35 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate 
  to poor overnight recoveries.

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ221-269-010000-
/O.CON.KSTO.FW.W.0009.000000T0000Z-210902T0600Z/
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
300 AM PDT Tue Aug 31 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT WEDNESDAY
FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES 221 AND
269...

* AFFECTED AREA...Fire weather zone 221.Fire weather zone 269.

* WIND...West to southwest wind gusts of 20 to 25 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 9 to 20 percent with moderate 
  to poor overnight recoveries. 

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
031 
WWUS86 KSTO 312108
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
208 PM PDT Tue Aug 31 2021

...Red Flag Warning through 1100 pm PDT Tuesday for the Northern 
Sierra Nevada and Southern Cascades...

...Red Flag Warning Continues through 1100 pm PDT Wednesday for 
the Northern Sierra Nevada...

.Gusty west/southwest winds will continue over the northern 
Sierra Nevada and southern Cascades through this evening with the 
strongest winds this afternoon into the early evening. Gusty winds
will linger into Wednesday over portions of the Sierra Nevada,
though not quite as strong. These winds combined with extremely 
dry fuels and low humidity are leading to critical fire weather 
conditions. New or existing wildfires will have the potential for 
rapid spread and growth under these conditions.

CAZ213-214-220-266>268-010600-
/O.CON.KSTO.FW.W.0009.000000T0000Z-210901T0600Z/
Eastern Portion of Shasta/Trinity NF-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and ElDorado Units-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
208 PM PDT Tue Aug 31 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES 
213, 214, 220, 266, 267, AND 268...

* AFFECTED AREA...Fire weather zone 213.Fire weather zone 
  214.Fire weather zone 220.Fire weather zone 266.Fire weather 
  zone 267.Fire weather zone 268. 

* WIND...West to southwest wind gusts of 20 to 35 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 7 to 20 percent with moderate to
  poor overnight recoveries.

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ221-269-011200-
/O.CON.KSTO.FW.W.0009.000000T0000Z-210902T0600Z/
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
208 PM PDT Tue Aug 31 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT WEDNESDAY
FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES 221 AND 
269...

* AFFECTED AREA...Fire weather zone 221.Fire weather zone 269.

* WIND...West to southwest wind gusts of 20 to 25 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate to
  poor overnight recoveries.

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
682 
WWUS86 KSTO 010600
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
1100 PM PDT Tue Aug 31 2021

...Red Flag Warning Continues through 1100 pm PDT Wednesday for
the Northern Sierra Nevada...

.Gusty winds will linger into Wednesday over portions of the 
Sierra Nevada. These winds combined with extremely dry fuels and 
low humidity are leading to critical fire weather conditions. New 
or existing wildfires will have the potential for rapid spread and
growth under these conditions.

CAZ213-214-220-266>268-010700-
/O.EXP.KSTO.FW.W.0009.000000T0000Z-210901T0600Z/
Eastern Portion of Shasta/Trinity NF-
Burney Basin and Northeast Plateau in Shasta County Including
Northwest Lassen NF north of Lassen NP-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-
Northern Sierra Foothills from 1000 to 3000 Ft. Includes portions
of Shasta-Trinity and Butte Units-
Northern Motherlode From 1000 to 3000 Ft. Includes portions of
Nevada-Yuba-Placer-Amador and ElDorado Units-
Northern Sierra Including Lassen NP and Plumas and Lassen NF/S
West of the Sierra Crest (West of Evans Peak-Grizzly Peak-
Beckworth Peak)-
1100 PM PDT Tue Aug 31 2021

...RED FLAG WARNING HAS EXPIRED FOR FIRE WEATHER ZONES 213, 214, 
220, 266, 267, AND 268...

Interact with us via social media www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ221-269-011200-
/O.CON.KSTO.FW.W.0009.000000T0000Z-210902T0600Z/
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
1100 PM PDT Tue Aug 31 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT WEDNESDAY
FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES 221 AND 
269...

* AFFECTED AREA...Fire weather zone 221.Fire weather zone 269.

* WIND...West to southwest wind gusts of 20 to 25 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons.

* HUMIDITY...Minimum humidity of 8 to 20 percent with moderate 
  to poor overnight recoveries. 

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
765 
WWUS86 KSTO 011000
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
300 AM PDT Wed Sep 1 2021

...Red Flag Warning Continues through 1100 pm PDT Tonight for the
Northern Sierra Nevada...

.Gusty wind will continue today into tonight over portions of the
higher Sierra Nevada. These winds combined with extremely dry 
fuels and low humidity will continue areas of critical fire 
weather conditions. Lighter wind expected Thursday.

CAZ221-269-012245-
/O.CON.KSTO.FW.W.0009.000000T0000Z-210902T0600Z/
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
300 AM PDT Wed Sep 1 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES 
221 AND 269...

* AFFECTED AREA...Fire weather zone 221, and 269.

* WIND...West to southwest wind gusts of 20 to 30 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons during the
  afternoon and evening.

* HUMIDITY...Minimum humidity of 7 to 20 percent with moderate to
  poor overnight recoveries.

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
797 
WWUS86 KSTO 012151
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
251 PM PDT Wed Sep 1 2021

...Red Flag Warning Continues through 1100 pm PDT Tonight for the
Northern Sierra Nevada...

.Gusty wind will continue into tonight over portions of the 
higher Sierra Nevada. These winds combined with extremely dry 
fuels and low humidity will continue areas of critical fire 
weather conditions. Winds decrease overnight. Southwest winds on
Thursday are not expected to be as strong.

CAZ221-269-020600-
/O.CON.KSTO.FW.W.0009.000000T0000Z-210902T0600Z/
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
251 PM PDT Wed Sep 1 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR GUSTY WIND AND LOW HUMIDITY FOR FIRE WEATHER ZONES
221 AND 269...

* AFFECTED AREA...Northern Sierra, Fire weather zone 221, and 
  269.

* WIND...West to southwest wind gusts of 20 to 30 mph, locally 
  higher at ridgetops and peaks. Strongest winds expected over 
  higher elevations and near favorably oriented canyons during 
  the afternoon and evening. 

* HUMIDITY...Minimum humidity of 7 to 20 percent with moderate 
  to poor overnight recoveries. 

* IMPACTS...Any active fires or new 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. Have a plan ready if you are
required to evacuate!

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$
250 
WWUS86 KSTO 020615
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
1115 PM PDT Wed Sep 1 2021

CAZ221-269-020715-
/O.EXP.KSTO.FW.W.0009.000000T0000Z-210902T0600Z/
Stanislaus NF West of the Sierra Crest-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-
1115 PM PDT Wed Sep 1 2021

...RED FLAG WARNING HAS EXPIRED FOR GUSTY WINDS AND LOW HUMIDITY FOR
FIRE WEATHER ZONES 221 AND 269...

Gusty winds have decreased over the Sierra Nevada with at least
moderate humidity recovery over many locations this evening. Winds
will be lighter Thursday and Friday, but dry air will remain over
the area. 

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

Nearby

Red Flag Warnings in California, 2021Every red flag warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.