Red Flag Warning 2, NWS Sacramento, CA

000 
WWUS86 KSTO 162113
RFWSTO

RED FLAG WARNING...RESENT
NATIONAL WEATHER SERVICE SACRAMENTO CA
212 PM PDT SAT JUN 16 2007

...RED FLAG WARNING FROM LATE TONIGHT THROUGH MID-DAY SUNDAY
FOR NORTHERN SACRAMENTO VALLEY AND SURROUNDING HIGH TERRAIN...

.SURFACE HIGH PRESSURE BUILDING INTO OREGON WILL BRING GUSTY
NORTHERLY WINDS TO NORTHERN SACRAMENTO VALLEY TONIGHT INTO MID-DAY 
SUNDAY. THIS WILL CAUSE RELATIVE HUMIDITY LEVELS TO BE VERY LOW
WITH POOR OVERNIGHT RECOVERIES. THERE WILL ALSO BE ISOLATED
POCKETS OF HIGH WINDS AND LOW HUMIDITY IN THE SURROUNDING
FOOTHILLS AND HIGHER ELEVATIONS.

CAZ216-162215-
/O.CAN.KSTO.FW.A.0002.070617T1200Z-070618T0200Z/
212 PM PDT SAT JUN 16 2007

...FIRE WEATHER WATCH IS CANCELLED FOR CENTRAL SACRAMENTO VALLEY...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS CANCELLED THE FIRE
WEATHER WATCH FOR THE CENTRAL SACRAMENTO VALLEY. 

ON-SHORE BREEZES TONIGHT WILL ALLOW OVERNIGHT RELATIVE HUMIDITY
RECOVERIES TO BE SUFFICIENT ENOUGH THAT WHEN THE NORTHERLY WINDS
MANEFEST IN THE CENTRAL SACRAMENTO VALLEY CONDITIONS ARE EXPECTED
TO REMAIN OUT OF RED FLAG CRITERIA.

$$

CAZ213-215-170530-
/O.UPG.KSTO.FW.A.0002.070617T1200Z-070618T0200Z/
/O.NEW.KSTO.FW.W.0002.070617T0900Z-070617T2000Z/
212 PM PDT SAT JUN 16 2007

...RED FLAG WARNING IN EFFECT FROM 2 AM TO 1 PM PDT SUNDAY...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT FROM 2 AM TO 1 PM PDT SUNDAY. THE
FIRE WEATHER WATCH HAS BEEN REPLACED BY THIS RED FLAG WARNING.

GUSTY NORTHERLY WINDS WILL CREATE POOR OVERNIGHT HUMIDITY
RECOVERIES FOR PORTIONS OF THE NORTHERN SACRAMENTO VALLEY AND
SURROUNDING FOOTHILLS AND HIGHER ELEVATIONS TONIGHT. THE GUSTY
NORTHERLY WINDS WILL CONTINUE THROUGH MID-DAY SUNDAY AS THE
MINIMUM HUMDITIES DROP QUITE LOW. BY THE AFTERNOON THE WINDS WILL
SUBSIDE SUFFICIENTLY ENOUGH TO BRING THE AREA OUT OF RED FLAG
CRITERIA. 

THE WARNING IS FOR THE NORTHERN SACRAMENTO VALLEY INCLUDING
PORTIONS OF THE SHASTA TRINITY NATIONAL FOREST...AND AREAS COVERED
BY CALFIRE SHASTA TRINITY AND TEHAMA GLENN UNITS.

PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$

RCH

000 
WWUS86 KSTO 170443
RFWSTO

RED FLAG WARNING
NATIONAL WEATHER SERVICE SACRAMENTO CA
943 PM PDT SAT JUN 16 2007

...RED FLAG WARNING FROM LATE TONIGHT THROUGH MID-DAY SUNDAY FOR
NORTHERN SACRAMENTO VALLEY AND SURROUNDING HIGH TERRAIN...

.SURFACE HIGH PRESSURE BUILDING INTO OREGON WILL BRING GUSTY
NORTHERLY WINDS TO NORTHERN SACRAMENTO VALLEY TONIGHT INTO MID-
DAY SUNDAY. THIS WILL CAUSE RELATIVE HUMIDITY LEVELS TO BE VERY
LOW WITH POOR OVERNIGHT RECOVERIES. THERE WILL ALSO BE ISOLATED
POCKETS OF HIGH WINDS AND LOW HUMIDITY IN THE SURROUNDING
FOOTHILLS AND HIGHER ELEVATIONS.

CAZ213-215-171400-
/O.CON.KSTO.FW.W.0002.070617T0900Z-070617T2000Z/
943 PM PDT SAT JUN 16 2007

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 AM TO 1 PM PDT
SUNDAY...

A RED FLAG WARNING REMAINS IN EFFECT FROM 2 AM TO 1 PM PDT
SUNDAY. 

GUSTY NORTHERLY WINDS WILL CREATE POOR OVERNIGHT HUMIDITY
RECOVERIES FOR PORTIONS OF THE NORTHERN SACRAMENTO VALLEY AND
SURROUNDING FOOTHILLS AND HIGHER ELEVATIONS TONIGHT. THE GUSTY
NORTHERLY WINDS WILL CONTINUE THROUGH MID-DAY SUNDAY AS THE
MINIMUM HUMIDITIES DROP QUITE LOW. BY THE AFTERNOON THE WINDS WILL
SUBSIDE SUFFICIENTLY ENOUGH TO BRING THE AREA OUT OF RED FLAG
CRITERIA.

THE WARNING IS FOR THE NORTHERN SACRAMENTO VALLEY INCLUDING
PORTIONS OF THE SHASTA TRINITY NATIONAL FOREST...AND AREAS
COVERED BY CALFIRE SHASTA TRINITY AND TEHAMA GLENN UNITS.

PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$

000 
WWUS86 KSTO 171351
RFWSTO

RED FLAG WARNING
NATIONAL WEATHER SERVICE SACRAMENTO CA
651 AM PDT SUN JUN 17 2007

...RED FLAG WARNING CONTINUES THROUGH 1 PM PDT TODAY FOR THE NORTHERN
SACRAMENTO VALLEY AND SURROUNDING HIGHER TERRAIN...

.SURFACE HIGH PRESSURE BUILDING INTO OREGON WILL BRING GUSTY
NORTHERLY WINDS TO THE NORTHERN SACRAMENTO VALLEY THROUGH MID DAY.
THIS WILL CAUSE RELATIVE HUMIDITY LEVELS TO BE VERY LOW. THERE
WILL ALSO BE ISOLATED POCKETS OF HIGH WINDS AND LOW HUMIDITY IN
THE SURROUNDING FOOTHILLS AND HIGHER ELEVATIONS.

CAZ213-215-172000-
/O.CON.KSTO.FW.W.0002.000000T0000Z-070617T2000Z/
651 AM PDT SUN JUN 17 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 1 PM PDT THIS
AFTERNOON...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 1 PM PDT THIS
AFTERNOON. 

GUSTY NORTHERLY WINDS WILL BRING LOW HUMIDITY LEVELS FOR PORTIONS OF
THE NORTHERN SACRAMENTO VALLEY AND SURROUNDING FOOTHILLS. THE
GUSTY NORTHERLY WINDS WILL CONTINUE THROUGH MID DAY TODAY AS THE
MINIMUM HUMIDITIES DROP QUITE LOW. BY EARLY AFTERNOON THE PRESSURE
GRADIENT IS EXPECTED TO WEAKEN WITH THE STRONGER WINDS DECREASING.

THE WARNING IS FOR THE NORTHERN SACRAMENTO VALLEY INCLUDING
PORTIONS OF THE SHASTA TRINITY NATIONAL FOREST...AND AREAS
COVERED BY CALFIRE SHASTA TRINITY AND TEHAMA GLENN UNITS.

PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$

000 
WWUS86 KSTO 172019
RFWSTO

RED FLAG WARNING
NATIONAL WEATHER SERVICE SACRAMENTO CA
100 PM PDT SUN JUN 17 2007

...RED FLAG WARNING CONTINUES THROUGH 4 PM PDT TODAY FOR THE NORTHERN
SACRAMENTO VALLEY AND SURROUNDING HIGHER TERRAIN...

.SURFACE HIGH PRESSURE WHICH HAS BEEN BUILDING INTO OREGON HAS
BROUGHT GUSTY NORTHERLY WINDS TO THE NORTHERN SACRAMENTO VALLEY
AND WILL CAUSED RELATIVE HUMIDITY LEVELS TO BE VERY LOW. THERE
WILL ALSO CONTINUE TO BE ISOLATED POCKETS OF HIGH WINDS AND LOW
HUMIDITY IN THE SURROUNDING FOOTHILLS AND HIGHER ELEVATIONS. WINDS
ARE EXPECTED TO DECREASE BY LATE THIS AFTERNOON.

CAZ213-215-172300-
/O.EXP.KSTO.FW.W.0002.000000T0000Z-070617T2000Z/
/O.NEW.KSTO.FW.W.0003.070617T2016Z-070617T2300Z/
116 PM PDT SUN JUN 17 2007

...RED FLAG WARNING IN EFFECT UNTIL 4 PM PDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS CONTINUED THE RED
FLAG WARNING THROUGH 4 PM PDT THIS AFTERNOON FOR THE NORTHERN
SACRAMENTO VALLEY AND SURROUNDING FOOTHILLS.

GUSTY NORTHERLY WINDS HAVE RESULTED IN LOW HUMIDITY LEVELS FOR
PORTIONS OF THE NORTHERN SACRAMENTO VALLEY AND FOR THE SURROUNDING
FOOTHILLS. THESE WINDS WILL THROUGH MUCH OF THE AFTERNOON. BY LATE 
AFTERNOON THE PRESSURE GRADIENT IS EXPECTED TO WEAKEN RESULTING IN
DECREASING WINDS.

THE WARNING IS FOR THE NORTHERN SACRAMENTO VALLEY INCLUDING
PORTIONS OF THE SHASTA TRINITY NATIONAL FOREST...AND AREAS
COVERED BY CAL FIRE SHASTA TRINITY AND TEHAMA GLENN UNITS.

PLEASE ADVISE THE APPROPRIATE OFFICIALS AND FIRE CREWS IN THE
FIELD OF THIS RED FLAG WARNING.

$$

RCH

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
1000 AM PDT SAT JUN 16 2007

.DISCUSSION...
A STRONG DELTA BREEZE CONTINUES THIS MORNING AND TEMPERATURES AROUND
SACRAMENTO ARE RUNNING AROUND 20 DEGREES BELOW YESTERDAYS VALUES AT
THIS TIME. HAVE UPDATED THE FORECAST TO COOL TEMPERATURES FOR TODAY
AND TO INCREASE WINDS A LITTLE. SFO-SAC GRADIENT RELAXING A LITTLE
THIS MORNING BUT STILL AT 3 MB SHOULD INCREASE AGAIN THIS
AFTERNOON TO OVER 4 MB. LOW CLOUDS IN THE BAY AREA AND DELTA WILL BE
SLOW TO CLEAR TODAY AND MAY NOT FULLY CLEAR FROM THE BAY AREA TODAY.
THIS SHOULD HELP TO KEEP A GOOD FLOW THROUGH THE DELTA AGAIN THIS
EVENING. THE SFO-SAC GRADIENT WILL GRADUALLY RELAX OVERNIGHT AS
HIGHER PRESSURE BUILDS OVER OREGON. NORTHERLY WINDS ON SUNDAY WILL
HELP WARM TEMPERATURES UP OVER TODAYS HIGHS...SO EXPECT HIGHS
SLIGHTLY WARMER THAN SEASONAL NORMALS ON SUNDAY.

&&

.AVIATION...
AN UPPER LEVEL LOW IS MOVING EASTWARD THROUGH THE PACIFIC NORTHWEST
CREATING A SOUTHWESTERLY FLOW ACROSS THE REGION.  THERE IS A DECENT
SURFACE PRESSURE GRADIENT BETWEEN THE BAY AREA AND THE VALLEY, WITH
GUSTY ONSHORE WINDS IN THE DELTA. STRATUS CLOUDS BELOW 1000 FEET IN
THE BAY AREA AND ADJACENT COASTAL VALLEYS CAUSING AREAS OF MARGINAL
VFR TO IFR CONDITIONS WILL IMPROVE TO ALL VFR BY 18Z THEN MOVE BACK
ACROSS THE AREAS AFTER 06Z TONIGHT.  VFR CONDITIONS ARE EXPECTED TO
CONTINUE OVER THE ALL OF THE REST OF THE ROUTES TODAY INTO TONIGHT.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
...FIRE WEATHER WATCH FROM LATE TONIGHT THROUGH SUNDAY EVENING FOR
THE NORTHERN AND CENTRAL SACRAMENTO VALLEY AND SURROUNDING HIGH
TERRAIN...

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SACRAMENTO CA
700 AM PDT SAT JUN 16 2007

CAZ013>019-063-064-066>069-171400-
SHASTA LAKE AREA/NORTHERN SHASTA COUNTY-
BURNEY BASIN/EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY-
CENTRAL SACRAMENTO VALLEY-SOUTHERN SACRAMENTO VALLEY-
CARQUINEZ STRAIT AND DELTA-NORTHERN SAN JOAQUIN VALLEY-
MOUNTAINS SOUTHWESTERN SHASTA TO NORTHERN LAKE COUNTIES-
CLEAR LAKE/SOUTHERN LAKE COUNTY-MOTHERLODE-
EAST FOOTHILLS/NORTH SACRAMENTO VALLEY-
WESTERN PLUMAS COUNTY/LASSEN PARK-WEST SLOPE NORTHERN SIERRA NEVADA-
700 AM PDT SAT JUN 16 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA.

.DAY ONE...TODAY

COOLING TREND TODAY AS TROUGH OF LOW PRESSURE MOVES ACROSS THE
PACIFIC NORTHWEST AND CONTINUES ONSHORE FLOW. LATER TONIGHT...
SURFACE WINDS WILL BECOME NORTHERLY AND OCCASIONALLY GUSTY...AND
WILL BEGIN TO LOWER HUMIDITIES.

* FIRE WEATHER WATCH.........SEE WWUS86 KSTO - RFWSTO FOR DETAILS *

.DAYS TWO THROUGH SEVEN... SUNDAY THROUGH FRIDAY

LOCALLY GUSTY NORTHERLY WINDS WILL LOWER HUMIDITIES AND MAY CAUSE
RED FLAG CONDITIONS OVER THE NORTHERN HALF OF THE SACRAMENTO VALLEY
AND SURROUNDING FOOTHILLS ON SUNDAY. MODIFYING SOUTHWEST FLOW ALOFT
WILL RESULT IN SEASONABLE WEATHER CONDITIONS FOR THE REST OF THE
WEEK.

* FIRE WEATHER WATCH.........SEE WWUS86 KSTO - RFWSTO FOR DETAILS *

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS TO THEIR LOCAL NATIONAL WEATHER SERVICE OFFICE.

THE LATEST WEATHER INFORMATION IS AVAILABLE ON THE INTERNET AT
(LOWER CASE): HTTP://WWW.WRH.NOAA.GOV/STO