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Red Flag Warning


Urgent - Fire Weather Message
National Weather Service Eureka CA
516 PM PDT Mon Sep 25 2017

...GUSTY WINDS AND LOW RH WILL RESULT IN PERIODS OF CRITICAL FIRE
WEATHER EARLY TUESDAY MORNING THROUGH EARLY WEDNESDAY MORNING...

Warming temperatures and offshore flow will result in periods of
critical fire weather early Tuesday morning through early
Wednesday morning. Offshore winds are expected to gradually
increase through the night Monday, peak Tuesday morning, and
persist through Wednesday morning. Temperatures will also
increase to well above normal Tuesday afternoon, with low minimum
humidity. Poor overnight recoveries are also expected along upper
slopes and ridges, particularly Tuesday night.

CAZ276-277-260830-
/O.CON.KEKA.FW.W.0010.170926T1000Z-170927T1500Z/
Interior Mendocino-W Mendocino NF/E Mendocino Unit-
516 PM PDT Mon Sep 25 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 3 AM TUESDAY TO 8 AM
PDT WEDNESDAY...

* AFFECTED AREA...Fire weather zones 276 and 277, including much
  of interior Mendocino and northern Lake counties.

* WIND...NE 15 to 20 mph. Occasional gusts to 30 mph along
  exposed ridges.

* HUMIDITY...Minimum relative humidity 15 to 25 percent.
  Maximum humidity recoveries of 25 to 40 percent along upper
  slopes and ridges.

* IMPACTS...Any 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.

&&

$$


http://weather.gov/eureka

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
356 PM PDT Mon Sep 25 2017

...CRITICAL FIRE WEATHER CONDITIONS THROUGH EARLY WEDNESDAY
MORNING...

.Gusty northerly or offshore winds over the northern and western
Sacramento Valley and adjacent foothills will redevelop again
this tonight into portions of the Sierra Nevada, continuing
through early Wednesday morning. The combination of offshore winds
and dry airmass are expected to bring critical fire weather
conditions.

CAZ213-215>218-220-221-263-264-266>269-279-270000-
/O.CON.KSTO.FW.W.0010.000000T0000Z-170927T1400Z/
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-
Southern Motherlode From 1000 to 3000 Ft. Includes portions of
Calaveras-Tuolumne Unit-Stanislaus NF West of the Sierra Crest-
Southeast Edge Shasta-Trinity NF and Western Portions of Tehama-
Glenn Unit-Lake County Portion of Lake-Napa-Sonoma 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)-
Northern Sierra Including the Tahoe and ElDorado NF/S West of the
Sierra Crest-Eastern Mendocino NF-
356 PM PDT Mon Sep 25 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 7 AM PDT WEDNESDAY
FOR GUSTY WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 213, 215,
216, 217, 218, 220, 221, 263, 264, 266, 267, 268, 269, AND 279...

* WIND...Northeast winds 10 to 20 mph with gusts 20 to 25 mph
  through the northern and western portions of the Sacramento
  Valley and locally stronger through aligned canyons and over
  exposed ridges. Strongest foothill/mountain winds expected
  during overnight and morning hours.

* HUMIDITY...Daytime humidity of 10 to 20 percent with the main
  concern being poor humidity recovery overnight.

* IMPACTS...Any 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.

&&

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$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service San Francisco CA
259 PM PDT Mon Sep 25 2017

...Red Flag Warning in effect for the East Bay Hills and the
North Bay Hills through Wednesday afternoon...

.The warm and dry air mass the over the area will continue
through at least Wednesday. In addition, periods of moderate and
gusty northeast winds are expected at times. Latest model output
indicates additional drying and some increase in the offshore
winds late Tuesday into Wednesday.

CAZ507-260600-
/O.CON.KMTR.FW.W.0004.000000T0000Z-170928T0000Z/
North Bay Mountains-
259 PM PDT Mon Sep 25 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT WEDNESDAY
FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 507...

* AFFECTED AREA...Fire weather zone 507.

* WIND...Northeast Winds 10 to 20 mph...gusts 25 mph. Strongest
  overnight and morning hours.

* HUMIDITY...Lowering to around 15 percent afternoons with poor
  recovery overnight...generally less than 30 percent.

* HIGHEST THREAT...is located over the Napa hills and around
  Mount Saint Helena where winds will be strongest and humidity
  lowest. Downed powerlines in remote areas will likely cause
  new fire starts.

* IMPACTS...any 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
gusty winds and low relative humidity can contribute to extreme
fire behavior.

&&

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service San Francisco CA
259 PM PDT Mon Sep 25 2017

...Red Flag Warning in effect for the East Bay Hills and the
North Bay Hills through Wednesday afternoon...

.The warm and dry air mass the over the area will continue
through at least Wednesday. In addition, periods of moderate and
gusty northeast winds are expected at times. Latest model output
indicates additional drying and some increase in the offshore
winds late Tuesday into Wednesday.

CAZ511-260600-
/O.CON.KMTR.FW.W.0004.000000T0000Z-170928T0000Z/
East Bay Hills and the Diablo Range-
259 PM PDT Mon Sep 25 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 PM PDT WEDNESDAY
FOR LOW HUMIDITY AND GUSTY WINDS FOR FIRE WEATHER ZONE 511...

* AFFECTED AREA...Fire weather zone 511.

* WIND...Northeast Winds 10 to 20 mph...gusts 25 mph. Strongest
  overnight and morning hours.

* HUMIDITY...Lowering to around 15 percent afternoons with poor
  recovery overnight...generally less than 30 percent.

* HIGHEST THREAT...is located over the East Bay Hills above
  1000 ft where winds will be strongest. Downed powerlines in
  remote areas will likely cause new fire starts.

* IMPACTS...any 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
gusty winds and low relative humidity can contribute to extreme
fire behavior.

&&

$$

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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