High Wind Watch 2, NWS Sacramento, CA

333 
WWUS76 KSTO 232208
NPWSTO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
308 PM PDT WED MAR 23 2011

...MORE STRONG WINDS FOR THE INTERIOR OF NORTHERN CALIFORNIA...

.A STRONGER WEATHER SYSTEM WILL BRING STRONG AND GUSTY WINDS
TONIGHT INTO THURSDAY. THE WINDS ON THURSDAY ARE EXPECTED TO BE
SIMILIAR TO THE WINDS LAST SATURDAY NIGHT AND SUNDAY MORNING. THESE
WILL RESULT IN DIFFICULT DRIVING CONDITIONS AND COULD POSSIBLY
LEAD TO NUMEROUS DOWNED TREES AND POWER OUTAGES.

CAZ016>019-064-066-067-241300-
/O.EXP.KSTO.WI.Y.0015.000000T0000Z-110323T2200Z/
/O.UPG.KSTO.HW.A.0002.110324T1200Z-110325T0000Z/
/O.NEW.KSTO.HW.W.0002.110324T1200Z-110325T0000Z/
CENTRAL SACRAMENTO VALLEY-SOUTHERN SACRAMENTO VALLEY-
CARQUINEZ STRAIT AND DELTA-NORTHERN SAN JOAQUIN VALLEY-
CLEAR LAKE/SOUTHERN LAKE COUNTY-
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-MOTHERLODE-
INCLUDING THE CITIES OF...CHICO...STOCKTON...MODESTO...LAKEPORT...
PARADISE...GRASS VALLEY
308 PM PDT WED MAR 23 2011

...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 5 PM PDT THURSDAY...
...WIND ADVISORY WILL EXPIRE AT 3 PM PDT THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 5 AM TO 5 PM PDT THURSDAY. THE
WIND ADVISORY WILL EXPIRE AT 3 PM PDT THIS AFTERNOON. 


* WINDS: SOUTHEAST TO SOUTH WINDS OF 20 TO 35 MPH WITH GUSTS UP TO 70
  MPH.

* TIMING: THE STRONGEST WINDS ARE EXPECTED IN THE MORNING AND WILL
  DECREASE IN THE LATE AFTERNOON.

* LOCATIONS INCLUDE: SACRAMENTO...STOCKTON...MODESTO...CHICO...
  PARADISE...GRASS VALLEY...LAKEPORT

* IMPACTS: POSSIBLE DOWNED TREES AND POWER OUTAGES. DIFFICULT
  DRIVING CONDITIONS ESPECIALLY FOR SMALL CARS AND HIGH PROFILE
  VEHICLES. LOOSE OBJECTS SHOULD BE TIED DOWN OR BROUGHT INSIDE. 


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. GUSTS OF 58 MPH OR MORE CAN LEAD TO PROPERTY
DAMAGE.

&&

$$

CAZ015-241300-
/O.UPG.KSTO.HW.A.0002.110324T1200Z-110325T0000Z/
/O.NEW.KSTO.HW.W.0002.110324T1200Z-110325T0000Z/
/O.EXT.KSTO.WI.Y.0015.000000T0000Z-110324T1200Z/
NORTHERN SACRAMENTO VALLEY-
INCLUDING THE CITY OF...REDDING
308 PM PDT WED MAR 23 2011

...WIND ADVISORY NOW IN EFFECT UNTIL 5 AM PDT THURSDAY...
...HIGH WIND WARNING IN EFFECT FROM 5 AM TO 5 PM PDT THURSDAY...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS ISSUED A HIGH WIND
WARNING...WHICH IS IN EFFECT FROM 5 AM TO 5 PM PDT THURSDAY. THE
WIND ADVISORY IS NOW IN EFFECT UNTIL 5 AM PDT THURSDAY FOR THE
NORTHERN SACRAMENTO VALLEY. 


* WINDS: SOUTHERLY WINDS 20 TO 30 MPH WITH GUSTS UP TO 50 MPH ARE
  EXPECTED TONIGHT AND THEN INCREASE TO 25 TO 35 MPH WITH GUSTS UP
  TO 70 MPH THURSDAY MORNING.

* TIMING: WINDS WILL INCREASE EARLY THURSDAY MORNING AND THEN
  DECREASE IN THE AFTERNOON.

* LOCATIONS INCLUDE: REDDING AND RED BLUFF 

* IMPACTS: POSSIBLE DOWNED TREES AND POWER OUTAGES. DIFFICULT
  DRIVING CONDITIONS ESPECIALLY FOR SMALL CARS AND HIGH PROFILE
  VEHICLES. LOOSE OBJECTS SHOULD BE TIED DOWN OR BROUGHT INSIDE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 25 MPH ARE
EXPECTED. WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...
ESPECIALLY FOR HIGH PROFILE VEHICLES AND SMALL CARS. USE EXTRA
CAUTION.

A HIGH WIND WARNING MEANS A HAZARDOUS HIGH WIND EVENT IS EXPECTED
OR OCCURRING. GUSTS OF 58 MPH OR MOR-E CAN LEAD TO PROPERTY
DAMAGE.

&&

$$
HSO/CKP

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
940 PM PDT TUE MAR 22 2011

.DISCUSSION...
WAA PRECIP MAKING ITS WAY EWD INTO AND ACROSS INTERIOR NORCAL...WITH
THE LEADING EDGE NEAR THE I-5 CORRIDOR. SATELLITE IMAGERY INDICATES
WARM TOPPED CLOUDS WITH THIS WAA PRECIP AND EVEN EXTENDING OFF THE
COAST SUGGESTING RELATIVELY LIGHT STRATIFORM PRECIP OVERNITE. THE
VORT MAX IS ALSO JUST OFF THE COAST AND HAS JUST RECENTLY SHOWING
SOME SIGNS OF ENHANCING CLOUDS/PRECIP OFF THE N COAST. THIS FEATURE
IS PROGGED TO ROTATE NWD TONITE...AND WILL PROBABLY NOT AFFECT
INTERIOR NORCAL. THAT MEANS WE WILL MOST LIKELY HAVE TO WAIT UNTIL
WED MIDDAY AND INTO THE AFTERNOON FOR MID LEVEL CAA AND UPWARD
VERTICAL MOTION TO INCREASE PRECIP RATES OVER INTERIOR NORCAL. THIS
IS ALSO A SPLITTING TROF WITH ENERGY PASSING WELL TO OUR NW AND TO
OUR S WHICH MAKES IT A WEAKER SYSTEM THAN THE ONE AFFECTING OUR AREA
ON THU WHICH IS NOT FORECAST TO SPLIT. WHILE THE QPFS SHOULD WORK
OUT OKAY IN THE SHASTA DRAINAGE AND W SIDE OF THE VALLEY AND E SIDE
OF THE COASTAL RANGE ON WED DUE TO STRONG SELY FLOW...WE ARE
WONDERING IF THE QPFS ARE LITTLE TOO HIGH IN THE SRN SAC AND NRN SAN
JOAQUIN VALLEY. THIS EVENING'S BUFKIT DATA ARE TRENDING LOWER...
MORE IN THE .10 TO A THIRD OF AN INCH RANGE ON WED IN THESE AREAS.

THE SNOW LEVELS OFF THE SHASTA DAM PROFILER SHOW AROUND 3 KFT AND
AROUND 4.5 KFT OVER SAC. GIVEN THE VEERING WINDS AND WAA TONIGHT
AHEAD OF THE COLD FRONT...WE SHOULD NOT SEE THESE LEVELS DROP
SIGNIFICANTLY TONITE.

WINDS ARE INCREASING OFF THE COAST AS ILLUSTRATED BY THE OFFSHORE
BUOY DATA AHEAD OF THE APPROACHING FRONT. BETWEEN 12Z-15Z WED...
WINDS ARE FORECAST TO INCREASE IN THE VALLEY WITH 925 MBS SELY WINDS
INCREASING TO 50-55 KTS IN THE SRN SAC VLY. THESE WINDS WILL PROVIDE
GOOD OROGRAPHICS FOR THE SHASTA DRAINAGE AND E SIDE OF THE COASTAL
MTNS. MID LEVEL CAA AND FAVORABLY SHEARED WIND PROFILES STILL
SUPPORT AFTERNOON THUNDERSTORM CHANCES IN THE VALLEY WED AFTERNOON.
STILL LOOKS LIKE THU IS THE STRONGER OF THE TWO SYSTEMS WITH THE
POTENTIAL FOR WINDS TO REACH HIGH WIND WARNING CRITERIA.    JHM

.PREVIOUS SHORT TERM DISCUSSION...

SHORTWAVE RIDGING TODAY WITH JUST SOME SCATTERED CUMULUS AND LIGHT
SHOWERS IN THE MOUNTAINS WILL GIVE WAY TO A STRONG PACIFIC SYSTEM
OFF THE COAST. VISIBLE SATELLITE SHOWS OUTER BANDS OF HIGH CLOUDS
SPREADING INTO NORTHERN CALIFORNIA...WITH COLD AIR CUMULUS OVER
THE CORE. RADAR SHOWS SOME RETURNS INDICATING SOME PRECIPITATION OFF
THE COAST BEGINNING TO MOVE INTO THE BAY AREA. INFRARED SATELLITE
SHOWS CONTINUING ENHANCEMENT AT THE CORE OF THE UPPER LOW.

THIS SYSTEM WILL CONTINUE TO DEVELOP TONIGHT AND MOVE INTO THE
REGION TONIGHT. DYNAMICS AND DECENT MOISTURE TAP FAVOR A
SIGNIFICANT SNOW EVENT ABOVE 3000 FEET LATE TONIGHT THROUGH
WEDNESDAY. THERE IS SUPPORT FROM A 120 KT JET WITH A DIFFLUENT
PATTERN OVER NORTHERN CALIFORNIA. UP TO AROUND A FOOT IS POSSIBLE
FOR THE MOUNTAINS...WITH AROUND 2 FEET OVER THE HIGHER MOUNTAINS.
WINTER STORM WARNING IS IN EFFECT FOR THOSE AREAS STARTING AT 7
PM...ALTHOUGH PRECIPITATION AT THE BEGINNING WILL BE RELATIVELY
LIGHT AT FIRST. THIS WILL SPREAD EASTWARD AND INCREASE IN
INTENSITY OVERNIGHT AND PEAK WEDNESDAY MORNING. THERE MAY BE A BIT
OF A LULL LATE WEDNESDAY...BUT CLOSE OF THE HILLS OF THE CURRENT
STORM WILL BE A STRONGER STORM FOR THURSDAY INTO EARLY FRIDAY.
THIS STORM HAS MORE ENERGY FOCUSED INTO NORTHERN CALIFORNIA AND
SHOULD BRING GREATER WIDENS AND MORE SNOW. WILL KEEP WINTER STORM
RUNNING THROUGHOUT THE PERIOD. SNOW LEVELS MAY DROP ENOUGH TO
CONSIDER ADDING AN ADVISORY FOR THE HIGHER FOOTHILLS FOR THURSDAY
AND THURSDAY NIGHT...BUT WILL HOLD OFF FOR THE TIME BEING.

A DEEPENING SURFACE LOW WILL MOVE JUST OFF THE COAST LATE TONIGHT AND
EARLY WEDNESDAY CREATING A STRONG SURFACE PRESSURE GRADIENT. THIS
ALONG WITH SIGNIFICANT WINDS ALOFT (55KT AT 850 MB) WILL BRING
GUSTY WINDS THROUGH TOMORROW FOR THE VALLEY...FOOTHILLS...SOUTHERN
LAKE COUNTY AND DELTA. WINDS WILL PICK UP AFTER MIDNIGHT...BUT
STRONGER WINDS ARE NOT EXPECTED TO REACH THE SURFACE TILL AROUND 5
AM...SO HAVE PUSHED WIND ADVISORY BACK UNTIL THAT TIME. THURSDAY
HAS EVEN BETTER FOR POTENTIAL AS A STRONG WIND EVENT. 850 MB WINDS
ON THE GFS AND NAM SHOW WINDS EXCEEDING 70 KT. THIS COULD BRING A
WIND EVENT SIMILAR TO THAT OF SUNDAY.

HEAVY RAINS COULD BRING FLOODING TO ALREADY HIGH SMALL CREEKS AND
SATURATED LOW LYING AREAS FOR WEDNESDAY AND THURSDAY. WITH LITTLE
GAP BETWEEN THE STORMS...THERE WILL BE LITTLE CHANCE FOR STREAMS
TO RECEDE. FOR MAJOR STEMS...RIVER LEVELS WILL CONTINUE TO
INCREASE AND THE LATEST FLOOD PRODUCTS SHOULD CHECKED FREQUENTLY.
THE WET GROUND COUPLED WITH STRONG WINDS BRINGS THE LIKELIHOOD OF
FALLING TREES AND LIMBS. THIS COULD DAMAGE BUILDINGS/VEHICLES AS
WELL AS CREATE WIDESPREAD POWER OUTAGES...ESPECIALLY THURSDAY.

THE POTENTIAL FOR SEVERE WEATHER RETURNS WEDNESDAY AFTERNOON TO
THE DELTA AND THE VALLEY SOUTH OF WILLOWS. MODEL SOUNDINGS SHOW
STEEP LAPSE RATES...CAPE...AND RATHER STRONG DIRECTIONAL AND SPEED
SHEAR. CONVERGENCE AREAS SETTING UP ON THE WEST SIDE OF THE VALLEY
AND DELTA COULD SET UP SOME STRONGER STORMS. IF CLOUDS BREAK UP IN
THE AFTERNOON THIS COULD ALLOW SUNLIGHT TO FURTHER DESTABILIZE
ATMOSPHERE. WILL HAVE TO KEEP A CLOSE EYE ON THIS

SHOWERS LINGER INTO FRIDAY WITH DECREASING COVERAGE AND INTENSITY.

EK

.EXTENDED DISCUSSION (SATURDAY THROUGH TUESDAY)

CONFIDENCE OF YET ANOTHER STORM PRETTY HIGH SATURDAY WITH BOTH GFS
AND ECMWF TAKING ANOTHER STORM SYSTEM INTO THE AREA. IN GENERAL
HAVE GONE WITH LIKELY POPS VALLEY AND CATEGORICAL MOUNTAINS. THIS
STORM LOOKS ISN'T TOO WARM OR TOO COOL SO SNOW LEVELS IN THE 3000 TO
5000 FOOT RANGE LOOK ON TRACK.

MODEL CONFIDENCE CONTINUES TO BE FAIRLY HIGH IN THE SUNDAY AND
SUNDAY WITH A SHORTWAVE RIDGE TO BUILD INTO THE AREA. FOR A
POSSIBLE DRY AND MILD PERIOD. WILL KEEP POPS AROUND CLIMATOLOGY
THAT TIME.

MODELS THEN SUGGESTING ANOTHER POSSIBLE STORMS SYSTEM EARLY IN THE
WEEK OUT TOWARDS DAYS 6 AND 7. A PRETTY LARGE ARRAY OF SOLUTIONS
THIS TIME PERIOD AND WILL COVER WITH SOME ISOLATED TO SCATTERED
POPS. RASCH

&&

.AVIATION...

PREDOMINATELY MVFR WITH ISOLATED IFR CIGS ACROSS NORCAL TAF SITES AS
UPPER TROF SHIFTS ONSHORE OVERNIGHT.  SOUTHERLY SURFACE WINDS WILL
TURN INCREASINGLY GUSTY WITH PK GUST OF 35KT WEDNESDAY MORNING
BETWEEN 13Z AND 18Z FOR CENTRAL VALLEYS.  VALLEY -RA AND SIERNEV/
CASCADE -SN ABOVE 3KFT WILL ACCOMPANY UPPER TROF. -SHRA/VCSH AND
DIMINISHING WINDS FOR TAF SITES AFTER 03Z THU.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WARNING FROM 7 PM THIS EVENING TO 5 AM PDT FRIDAY
ABOVE 3000 FEET FOR THE BURNEY BASIN / EASTERN SHASTA COUNTY...
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY...
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY...WEST SLOPE NORTHERN
SIERRA NEVADA...WESTERN PLUMAS COUNTY/LASSEN PARK.

FLOOD WATCH FROM 7 PM PDT THIS EVENING THROUGH LATE THURSDAY
NIGHT CARQUINEZ STRAIT AND DELTA...CENTRAL SACRAMENTO VALLEY...
CLEAR LAKE/SOUTHERN LAKE COUNTY...MOTHERLODE...NORTHEAST
FOOTHILLS/SACRAMENTO VALLEY...NORTHERN SACRAMENTO VALLEY...
NORTHERN SAN JOAQUIN VALLEY...SOUTHERN SACRAMENTO VALLEY.

WIND ADVISORY FROM 5 AM TO 5 PM PDT WEDNESDAY CARQUINEZ STRAIT
AND DELTA...CENTRAL SACRAMENTO VALLEY...CLEAR LAKE/SOUTHERN LAKE
COUNTY...MOTHERLODE...NORTHEAST FOOTHILLS/SACRAMENTO VALLEY...
NORTHERN SACRAMENTO VALLEY...NORTHERN SAN JOAQUIN VALLEY...
SOUTHERN SACRAMENTO VALLEY.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SACRAMENTO CA
517 AM PDT TUE MAR 22 2011

CAZ013>019-063-064-066>069-231400-
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-
517 AM PDT TUE MAR 22 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA.

.DAY ONE...TODAY

ANOTHER STRONG WINTER STORM WILL AFFECT THE REGION BEGINNING TONIGHT
BRINGING RAIN TO THE VALLEY...HEAVY SNOW TO THE MOUNTAINS AND GUSTY
WINDS TO THE REGION.

* WINTER STORM WARNING.......SEE WWUS46 KSTO - WSWSTO FOR DETAILS *

* FLOOD WATCH................SEE WGUS66 KSTO - FFASTO FOR DETAILS *

* WIND ADVISORY..............SEE WWUS76 KSTO - NPWSTO FOR DETAILS *

.DAYS TWO THROUGH SEVEN... WEDNESDAY THROUGH MONDAY

STORMY WEATHER WILL CONTINUE ACROSS THE REGION THROUGH SATURDAY.

* WINTER STORM WARNING.......SEE WWUS46 KSTO - WSWSTO FOR DETAILS *

* FLOOD WATCH................SEE WGUS66 KSTO - FFASTO FOR DETAILS *

* WIND ADVISORY..............SEE WWUS76 KSTO - NPWSTO 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