Red Flag Warning 10, NWS Sacramento, CA

937 
WWUS86 KSTO 092142
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
242 PM PDT Thu Sep 9 2021

...Red Flag Warning in effect late Thursday and into Friday...

.A system will approach the northwest California coast and bring 
the chance of scattered showers and a few isolated thunderstorms 
to the area through early Friday. Any thunderstorms have the 
potential to produce lightning as well as gusty and erratic winds.
Thunderstorms are forecast to be quick-moving, leading to the 
possibility of dry lightning. Gusty southwest winds will persist 
in the northern Sierra, southern Cascades, and foothills through 
the day on Friday. The combination of isolated dry lightning and 
gusty winds with the dry fuels will bring the potential for 
critical fire weather conditions.

CAZ213-215>219-263-279-101400-
/O.CON.KSTO.FW.W.0010.210910T0000Z-210910T2100Z/
Eastern Portion of Shasta/Trinity NF-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-Carquinez Strait and Delta-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-Southeast Edge Shasta-
Trinity NF and Western Portions of Tehama-Glenn Unit-
Eastern Mendocino NF-
242 PM PDT Thu Sep 9 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 2 PM PDT FRIDAY FOR
ISOLATED DRY LIGHTNING AND GUSTY/ERRATIC WINDS...

* AFFECTED AREA...The Sacramento Valley, northern San Joaquin 
  Valley, and Coastal Range. 

* WIND...Gusty and erratic winds are possible near any showers 
  or isolated thunderstorms. 

* THUNDERSTORMS...Isolated thunderstorms late this afternoon 
  and continue overnight into Friday morning. Fast-moving 
  storms may produce dry lightning.

* IMPACTS...New fires can ignite as a result of lightning. 
  Rapid spread can occur with any gusty and erratic winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
lightning, 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

$$

CAZ214-220-221-266>269-101400-
/O.CON.KSTO.FW.W.0010.210910T0600Z-210911T0600Z/
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-
242 PM PDT Thu Sep 9 2021

...RED FLAG WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO
11 PM PDT FRIDAY FOR GUSTY WINDS, LOW HUMIDITY, AND ISOLATED DRY
LIGHTNING...

* AFFECTED AREA...The northern Sierra Nevada, southern Cascades, 
  and foothills, including the Dixie and Caldor Fires. 

* WIND...West/southwest 15 to 25 mph with gusts around 35 mph, 
  locally higher near ridgetops. Additionally, gusty and 
  erratic winds are possible near any showers and thunderstorms.

* HUMIDITY...15 to 30 percent on Friday afternoon.

* THUNDERSTORMS...Isolated thunderstorms late tonight and
  continue into Friday morning. Fast-moving storms may produce 
  dry lightning. 

* IMPACTS...New fires may ignite as a result of lightning. 
  Rapid spread may occur with any gusty and erratic winds. 

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

$$

198 
WWUS86 KSTO 101037
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
337 AM PDT Fri Sep 10 2021

...Red Flag Warning in effect until 11 PM this evening...

.A weather system will continue to bring scattered showers and a 
few isolated thunderstorms today. Thunderstorm threat diminishes by
mid to late morning for most areas with storms possible over the 
northern Sierra south of I-80 this afternoon. Any thunderstorms 
have the potential to produce lightning as well as gusty and 
erratic winds. Thunderstorms are forecast to be quick-moving, 
leading to the possibility of dry lightning. Gusty southwest winds
will persist in the northern Sierra and southern Cascades today. 
The combination of isolated dry lightning and gusty winds with the
dry fuels will bring the potential for critical fire weather 
conditions.

CAZ214-220-221-266>269-110000-
/O.CON.KSTO.FW.W.0010.000000T0000Z-210911T0600Z/
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-
337 AM PDT Fri Sep 10 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR GUSTY WINDS, LOW HUMIDITY, AND ISOLATED DRY
LIGHTNING...

* AFFECTED AREA...The northern Sierra Nevada, southern Cascades, 
  and foothills, including the Dixie and Caldor Fires. 

* WIND...West/southwest 15 to 25 mph with gusts around 35 mph, 
  locally higher near ridgetops. Additionally, gusty and 
  erratic winds are possible near any showers and thunderstorms.

* HUMIDITY...15 to 30 percent this afternoon.

* THUNDERSTORMS...Isolated thunderstorms expected for most areas
  through this morning, and then over the northern Sierra south of
  I-80 this afternoon. Fast-moving storms may produce dry 
  lightning.

* IMPACTS...New fires may ignite as a result of lightning. 
  Rapid spread may occur with any gusty and erratic winds.

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

$$

CAZ213-215>219-263-279-102100-
/O.CON.KSTO.FW.W.0010.000000T0000Z-210910T2100Z/
Eastern Portion of Shasta/Trinity NF-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-Carquinez Strait and Delta-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-Southeast Edge Shasta-
Trinity NF and Western Portions of Tehama-Glenn Unit-
Eastern Mendocino NF-
337 AM PDT Fri Sep 10 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 2 PM PDT THIS
AFTERNOON FOR ISOLATED DRY LIGHTNING AND GUSTY/ERRATIC WINDS...

* AFFECTED AREA...The Sacramento Valley, northern San Joaquin 
  Valley, and Coastal Range. 

* WIND...Gusty and erratic winds are possible near any showers 
  or isolated thunderstorms.

* THUNDERSTORMS...Isolated thunderstorms expected through this
  morning. Fast-moving storms may produce dry lightning.

* IMPACTS...New fires can ignite as a result of lightning. 
  Rapid spread can occur with any gusty and erratic winds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
lightning, 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

$$

368 
WWUS86 KSTO 101600
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
900 AM PDT Fri Sep 10 2021

...Red Flag Warning remains in effect for the northern Sierra
Nevada and southern Cascades through late evening...

CAZ213-215>219-263-279-101700-
/O.CAN.KSTO.FW.W.0010.000000T0000Z-210910T2100Z/
Eastern Portion of Shasta/Trinity NF-
Northern Sacramento Valley to Southern Tehama County Line Below
1000 Ft-
Central Sacramento Valley in Glenn, Colusa, Yuba, Northern
Sutter, and Butte County Below 1000 Ft-
Southern Sacramento Valley in Yolo-
Sacramento Far Western Placer, southern Sutter and Solano County
Below 1000 Ft-Carquinez Strait and Delta-
Northern San Joaquin Valley in San Joaquin and Stanislaus
Counties Below 1000 ft-Southeast Edge Shasta-
Trinity NF and Western Portions of Tehama-Glenn Unit-
Eastern Mendocino NF-
900 AM PDT Fri Sep 10 2021

...RED FLAG WARNING IS CANCELLED FOR ISOLATED DRY LIGHTNING AND
GUSTY/ERRATIC WINDS...

The National Weather Service in Sacramento has cancelled the Red
Flag Warning for the Sacramento Valley and northern San Joaquin
Valley as the threat of dry lightning associated with isolated
thunderstorms has diminished.

&&

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www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ214-220-221-266>269-110600-
/O.CON.KSTO.FW.W.0010.000000T0000Z-210911T0600Z/
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-
900 AM PDT Fri Sep 10 2021

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING FOR GUSTY WINDS AND LOW HUMIDITY...

* AFFECTED AREA...The northern Sierra Nevada, southern Cascades, 
  and foothills, including the Dixie and Caldor Fires. 

* WIND...West/southwest 15 to 25 mph with gusts around 35 mph,
  locally higher near ridgetops.

* HUMIDITY...15 to 30 percent this afternoon.

* 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

$$