Red Flag Warning 12, NWS Sacramento, CA

781 
WWUS86 KSTO 022301
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
401 PM PDT Fri Nov 2 2018

CAZ215>219-263-264-279-031200-
/O.CON.KSTO.FW.W.0012.181103T0700Z-181104T1400Z/
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-
Lake County Portion of Lake-Napa-Sonoma Unit-Eastern Mendocino NF-
401 PM PDT Fri Nov 2 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM MIDNIGHT PDT TONIGHT
TO 6 AM PST SUNDAY FOR GUSTY WINDS AND LOW HUMIDITY...

* AFFECTED AREA...Coast Range, east slope Coast Range foothills
  and western Sacramento Valley.

* WIND...North to northeast winds 15 to 25 with gusts to 35 mph.

* HUMIDITY...Poor overnight recovery of 30 to 45 percent 
  tonight and 20 to 35 percent on Saturday night. Minimum 
  humidities 7 to 17 percent on Saturday. 

* 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.

&&

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

$$

956 
WWUS86 KSTO 031149
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
449 AM PDT Sat Nov 3 2018

CAZ215>219-263-264-279-040000-
/O.CON.KSTO.FW.W.0012.000000T0000Z-181104T1400Z/
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-
Lake County Portion of Lake-Napa-Sonoma Unit-Eastern Mendocino NF-
449 AM PDT Sat Nov 3 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 AM PST SUNDAY FOR
BREEZY NORTH WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 215, 
216, 217, 218, 219, 263, 264, AND 279...

* AFFECTED AREA...East slopes of the coast range and western
  Sacramento valley. 

* WIND...North to northeast winds 10 to 20 with gusts to 30 mph.

* HUMIDITY...Poor overnight recovery of 30 to 45 percent this
  morning and 20 to 35 percent on tonight. Minimum humidities 7 to
  17 percent today.

* 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.

&&

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

$$

814 
WWUS86 KSTO 032130
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
230 PM PDT Sat Nov 3 2018

CAZ215>219-263-264-279-041400-
/O.CON.KSTO.FW.W.0012.000000T0000Z-181104T1400Z/
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-
Lake County Portion of Lake-Napa-Sonoma Unit-Eastern Mendocino NF-
230 PM PDT Sat Nov 3 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 AM PST SUNDAY FOR
BREEZY NORTH WINDS AND LOW HUMIDITY FOR FIRE WEATHER ZONES 215,
216, 217, 218, 219, 263, 264, AND 279...

* AFFECTED AREA...East slopes of the Coast Range and western 
  Sacramento valley. 

* WIND...North to northeast winds 10 to 20 with local gusts to 30
  mph. Wind decreasing in the Central Valley this evening, but
  remaining gusty in the foothills and mountains over ridges and
  through favorably oriented canyons.

* HUMIDITY...Minimum humidities 7 to 17 percent today with
  overnight humidity recoveries as low as 20 to 35 percent.

* 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.

&&

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

$$

643 
WWUS86 KSTO 041400
RFWSTO

URGENT - FIRE WEATHER MESSAGE
National Weather Service Sacramento CA
600 AM PST Sun Nov 4 2018

CAZ215>219-263-264-279-041500-
/O.EXP.KSTO.FW.W.0012.000000T0000Z-181104T1400Z/
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-
Lake County Portion of Lake-Napa-Sonoma Unit-Eastern Mendocino NF-
600 AM PST Sun Nov 4 2018

...RED FLAG WARNING WILL EXPIRE AT 6 AM PST EARLY THIS MORNING
FOR DRY BREEZY CONDITIONS FOR FIRE WEATHER ZONES 215, 216, 217, 
218, 219, 263, 264, AND 279...

Winds will be decreasing today as high pressure rebuilds over the
region. Even with the lighter winds, RH values will be quite low
today so fire danger remains high for this time of year. 

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

$$

Area Forecast Discussion
National Weather Service Sacramento CA
250 AM PDT Fri Nov 2 2018

.SYNOPSIS...
Dry with warmer than normal temperatures through next week.
Breezy north winds may lead to elevated fire weather concerns on
Saturday.

&&

.DISCUSSION...
High pressure aloft over the southwest U.S will bring continued
warm and dry weather to Northern California. A weak shortwave
trough moving through the Pacific Northwest will, however, bring a
little cooling today. Even with this cooling, daytime highs today
will still come in about 10 to 12 degrees above normal for early
November. The shortwave moves east of the forecast area by 00z
this afternoon with surface high pressure nosing quickly into the
Pacific Northwest. By this evening...a fairly tight surface
gradient develops over the north state bringing increasing north
winds. The strongest winds will be over the Sacramento valley
westward. These north winds will bring decreasing humidity so only
poor to moderate RH recovery is expected. Combination of winds
and lowering RH have prompted a Red Flag warning in the area of
strongest winds over and west of the Sacramento valley. Minimum RH
values in this region will drop into the lower teens on Saturday
afternoon with temps up just a bit increasing fire danger. The Red
Flag will remain in place through Saturday evening when surface
gradients relax and winds decrease. Another weather system skims
the north state on Sunday. This will bring a little cooling with
some cloud cover over much of the forecast area but precipitation
is still expected to remain north of the CWA. This system also
moves quickly east of the forecast area with another round of
northerly breezes developing on Monday. At this time, winds do not
look to be as strong as on Saturday nor do RH values appear as
low so not expecting fire concerns to be as much of an issue.

&&

.EXTENDED DISCUSSION (Tuesday THROUGH Friday)

Dry weather with mild days and cool nights next week as
persistent eastern Pacific high pressure dominates Norcal weather.
Locally breezy north to east winds at times, mainly during the
nights and mornings.
&&

.AVIATION...

VFR conditions the next 24 hours with variable winds less than 10
kts at TAF sites.
&&

.STO WATCHES/WARNINGS/ADVISORIES...
Red Flag Warning from midnight PDT tonight to 6 AM PST Sunday
for Carquinez Strait and Delta-Central Sacramento Valley in
Glenn, Colusa, Yuba, Northern Sutter, and Butte County Below
1000 Ft-Eastern Mendocino NF-Lake County Portion of Lake-Napa-
Sonoma Unit-Northern Sacramento Valley to Southern Tehama County
Line Below 1000 Ft-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-Southern
Sacramento Valley in Yolo-Sacramento Far Western Placer,
southern Sutter and Solano County Below 1000 Ft.

&&