Wind Advisory 12, NWS Sacramento, CA

000 
WWUS76 KSTO 092247
NPWSTO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
347 PM PDT TUE OCT 9 2007

...GUSTY WINDS EXPECTED ACROSS INTERIOR NORTHERN CALIFORNIA
THROUGH TONIGHT...

.A STRONG COLD FRONT WILL BRING GUSTY WINDS TO THE MOUNTAINS OF
INTERIOR NORTHERN CALIFORNIA THROUGH TONIGHT. SOUTH WINDS HAVE
INCREASED TO 20 TO 35 MPH THIS AFTERNOON IN THE NORTHERN
SACRAMENTO VALLEY AND FOOTHILLS. GUSTS TO 55 MPH ARE POSSIBLE NEAR
THE SHASTA COUNTY MOUNTAINS AND ALONG HIGHWAY 89 IN THE BURNEY
BASIN. GUSTY SOUTHWEST WINDS ARE ALSO EXPECTED IN WESTERN PLUMAS
COUNTY AND THE LASSEN PARK AREA LATER THIS AFTERNOON AND EVENING.

WINDS HAVE TURNED SOUTHEAST AS THE COLD FRONT APPROACHES. GUSTY
WINDS WILL DEVELOP IN THE SOUTHWEST SHASTA COUNTY MOUNTAINS TO
NORTHERN LAKE COUNTY. FINALLY...A STRONG SOUTHWEST FLOW WILL BRING
WIND GUSTS UP TO 55 MPH TO THE WEST SLOPE OF THE SIERRA NEVADA
TONIGHT.

WINDS WILL GRADUALLY DECREASE BY EARLY WEDNESDAY MORNING AS RAIN
AND HIGH ELEVATION SNOW SPREAD ACROSS THE AREA.

CAZ013>015-066-068-101200-
/O.CON.KSTO.WI.Y.0012.000000T0000Z-071010T1200Z/
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
BURNEY BASIN / EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY-
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-
WESTERN PLUMAS COUNTY/LASSEN PARK-
347 PM PDT TUE OCT 9 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY. 

SOUTH WINDS WILL INCREASE TO 20 TO 40 MPH BY LATER THIS AFTERNOON
AND EVENING. WIND GUSTS UP TO 55 MPH ARE EXPECTED ALONG HIGHWAY 89
IN THE BURNEY BASIN. SOUTHWEST WIND GUSTS TO 55 MPH ARE ALSO
EXPECTED OVER THE HIGHER ELEVATIONS OF WESTERN PLUMAS COUNTY AND
LASSEN PARK BY LATE AFTERNOON.

GUSTY WINDS WILL CONTINUE INTO TONIGHT AS RAIN AND HIGH ELEVATION
SNOW SPREAD ACROSS THE AREA. WINDS WILL GRADUALLY DECREASE BY
EARLY WEDNESDAY MORNING.

STRONG AND GUSTY WINDS CAN MAKE DRIVING DIFFICULT...ESPECIALLY
FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

$$

CAZ063-069-101200-
/O.CON.KSTO.WI.Y.0012.071010T0000Z-071010T1200Z/
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
WEST SLOPE NORTHERN SIERRA NEVADA-
347 PM PDT TUE OCT 9 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT WEDNESDAY. 

SOUTH TO SOUTHWEST WINDS WILL INCREASE TO 20 TO 35 MPH THIS
AFTERNOON AND EVENING. GUSTS TO 55 MPH ARE POSSIBLE OVER HIGHER
MOUNTAIN PASSES AND EXPOSED RIDGES TONIGHT. WINDS WILL GRADUALLY
DECREASE BY EARLY WEDNESDAY MORNING AS RAIN AND HIGH ELEVATION
SNOW SPREAD ACROSS THE AREA.

STRONG AND GUSTY WINDS CAN MAKE DRIVING DIFFICULT...ESPECIALLY
FOR HIGH PROFILE VEHICLES. USE EXTRA CAUTION.

$$

000 
WWUS76 KSTO 100215
NPWSTO

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SACRAMENTO CA
715 PM PDT TUE OCT 9 2007


CAZ013>015-063-066-068-069-100315-
/O.CAN.KSTO.WI.Y.0012.000000T0000Z-071010T1200Z/
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
BURNEY BASIN / EASTERN SHASTA COUNTY-NORTHERN SACRAMENTO VALLEY-
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-
WESTERN PLUMAS COUNTY/LASSEN PARK-
WEST SLOPE NORTHERN SIERRA NEVADA-
715 PM PDT TUE OCT 9 2007

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SACRAMENTO HAS CANCELLED THE WIND
ADVISORY. 

THE STORM SYSTEM THAT IS MOVING INTO THE REGION IS WEAKENING.
WINDS HAVE FALLEN OFF WELL BELOW ADVISORY LEVELS IN MOST
LOCATIONS. AS THE FRONT MOVES THROUGH OVERNIGHT AND EARLY
WEDNESDAY MORNING EXPECT BRIEF GUSTY WINDS TO OCCUR WITH THE
PASSAGE OF THE FRONT. IN THE MOUNTAINS WINDS WILL GENERALLY BE
GUSTING TO 35 MPH OVER THE RIDGETOPS WHILE IN THE VALLEY WINDS MAY
GUST TO AROUND 30 MPH WITH THE PASSAGE OF THE FRONT FOR AN HOUR OR
SO LATER TONIGHT.


$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SACRAMENTO CA
330 AM PDT TUE OCT 9 2007

.DISCUSSION...
BOMB OF A SURFACE LOW CAN BE SEEN MOVING NORTH ABOUT 550 MILES
NORTHWEST OF EUREKA. IR SATELLITE LOOP SHOWS THE IMPRESSIVE CYCLONE
FOR THIS TIME OF YEAR WITH A JET MAX UNDERCUTTING THE LOW.

WE DECIDED TO ISSUE A WIND ADVISORY TODAY FOR THE NORTHERN
SACRAMENTO VALLEY...THE NORTHERN MOUNTAINS...THE BURNEY BASIN AND
THE WEST SLOPE OF THE SIERRA NEVADA.  A CORE OF 30 KT WINDS AT 925
MB DEVELOPS ALONG THE CENTRAL VALLEYS OF CALIFORNIA THIS AFTERNOON.
THESE WINDS WILL FUNNEL INTO THE REDDING AND RED BLUFF AREAS TODAY.
BY 00Z THE COLD FRONT WILL EDGE ONTO THE COAST AS 700 MB WINDS OVER
60 KTS DEVELOP. THESE WINDS AND INCREASING MOISTURE WILL RESULT IN
STRONG TURBULENT MIXING NEAR MT. SHASTA AND POINTS NORTH. VERY GUSTY
WINDS ARE POSSIBLE ALONG HIGHWAY 89 TODAY NORTHEAST OF MT. LASSEN.
THIS AREA MAY NEED A HIGH WIND WARNING TODAY BUT WENT WITH THE
ADVISORY BECAUSE OF THE MOVEMENT OF THE SURFACE LOW AND EXPECTED
COVERAGE OF THE HIGHEST WINDS. GUSTY SOUTHWEST WINDS AND WAVE
TURBULENCE WILL ALSO DEVELOP IN WESTERN PLUMAS COUNTY AND THE WEST
SLOPE OF THE SIERRA THIS AFTERNOON. CANSAC MM5 SHOWS THE WINDS
SHIFTING TO THE SOUTHEAST AS THE FRONT APPROACHES. THUS THE HIGHEST
WINDS WILL SHIFT TO THE INTERIOR MOUNTAINS EAST OF THE MENDOCINO
FOREST AND WESTERN SACRAMENTO VALLEYS LATER THIS AFTERNOON AND
TONIGHT.

THE 06Z MODELS HAVE BACKED OFF ON PRECIPITATION AMOUNTS...LIKE THE
06Z RUN DID YESTERDAY.  THE GENERAL CONSENSUS IS FAIRLY SIMILAR...
WITH A RELATIVELY NARROW BAND OF MODERATE SHOWERS WILL MOVING INTO
SHASTA COUNTY TUESDAY AFTER MIDNIGHT. THE SLOWER TIMING MAKES SENSE
GIVEN THE NORTHWARD MOVEMENT OF THE SURFACE LOW AND VERTICALLY
STACKED SYSTEM. SHOWERS WILL MOVE INTO THE LASSEN PARK AREA
OVERNIGHT TONIGHT. LOW LEVEL WINDS WILL CONVERGE UPON THE NORTHERN
SACRAMENTO VALLEY TONIGHT...ENHANCING RAINFALL UP THERE. 0.75 INCHES
OF RAIN MAY FALL IN REDDING/RED BLUFF TONIGHT...TAPERING TO ABOUT
0.50 INCH IN SACRAMENTO.  MORE THAN AN INCH OF RAIN COULD FALL IN
THE HILLS NORTH OF REDDING. STOCKTON AND MODESTO MAY SEE ABOUT 0.3
INCHES OF RAIN FROM AROUND 4 AM THROUGH NOON OR SO.

IN THE MOUNTAINS...SNOW LEVELS WILL LOWER TO 5500 FEET IN THE NORTH
TO AROUND 7000 FEET NEAR SONORA PASS. THE BEST OROGRAPHICS ARE
LIMITED TO A FEW HOURS WEDNESDAY MORNING AND BY THE TIME SNOW LEVELS
LOWER THE BULK OF THE PRECIPITATION SHOULD BE OVER.  HOWEVER...A FEW
HOURS OF WINTRY TRAVEL CONDITIONS ARE LIKELY OVER INTERSTATE
80...HIGHWAY 50 AND HIGHWAY 88 WEDNESDAY MORNING. 2-4 INCHES OF SNOW
MAY FALL ABOVE 7000 FEET BY WEDNESDAY AFTERNOON...WITH PERHAPS A
FOOT OVER LASSEN PEAK.

WE DONT HAVE ANY THUNDERSTORMS IN THE FORECAST...BUT THERE COULD BE
AN ISOLATED STORM NEAR THE CORE OF THE COLD POOL...WHICH IS -25C AT
500 MB TUESDAY NIGHT.  THERE IS A BRIEF PERIOD OF STRONG UPPER
DIVERGENCE WITH THE LOW.

THE GFS BRINGS TWO MORE WEATHER SYSTEMS INTO CALIFORNIA...ONE ON
FRIDAY AND ANOTHER PERHAPS NEXT MONDAY NIGHT. THE NEXT SYSTEM DOES
NOT APPEAR TO HAVE AS MUCH COLD AIR WITH IT AND THEREFORE SHOULD
HAVE LESS WIND. IT LOOKS SIMILAR IN MOISTURE TO THIS SYSTEM. NEXT
WEEKS SYSTEM HAS SOME ENERGY FROM AN AMPLIFYING DEEP LOW OVER THE
GULF OF ALASKA AND MAY BE AIDED BY THE FACE THAT THE TROF IN THE
EASTERN U.S. SHIFTS EAST TO AROUND 60W. SG

&&

.AVIATION...
VFR CONDITIONS AT ALL TAF SITES THROUGH THIS MORNING. UPPER LEVEL
LOW MOVING INTO PAC NW COAST. BROKEN TO OVERCAST HIGH CIGS EDGING
INTO NORTHERN HALF OF CWA BECOMING MVFR BY 03Z. SHOWERS AFFECTING
COASTAL MOUNTAINS AND WESTERN SIDE OF THE VALLEY BETWEEN 00-03Z
SPREADING ACROSS THE ENTIRE CWA BY 12Z WITH LOCAL IFR CONDITIONS.
SOUTH TO SOUTHWESTERLY WINDS IN THE VALLEY WILL STRENGTHEN JUST
AHEAD OF AND DURING THE FRONTAL PASSAGE WITH GUSTS IN THE 25-30 KT
RANGE...MOUNTAIN GUSTS UP TO 55 KTS. JBB

&&

.STO WATCHES/WARNINGS/ADVISORIES...
WIND ADVISORY FROM 11 AM THIS MORNING TO 5 AM PDT WEDNESDAY FOR
BURNEY BASIN / EASTERN SHASTA COUNTY-NORTHEAST
FOOTHILLS/SACRAMENTO VALLEY-NORTHERN SACRAMENTO VALLEY-SHASTA
LAKE AREA / NORTHERN SHASTA COUNTY-WESTERN PLUMAS COUNTY/LASSEN
PARK.

WIND ADVISORY FROM 5 PM THIS AFTERNOON TO 5 AM PDT WEDNESDAY FOR
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO NORTHERN LAKE COUNTY-
WEST SLOPE NORTHERN SIERRA NEVADA.

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SACRAMENTO CA
700 AM PDT MON OCT 8 2007

CAZ013>019-063-064-066>069-091400-
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 MON OCT 8 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR INTERIOR NORTHERN CALIFORNIA.

.DAY ONE...TODAY

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.DAYS TWO THROUGH SEVEN... TUESDAY THROUGH SUNDAY

A COLD FRONT WILL BRING VERY GUSTY WINDS TO THE NORTHERN MOUNTAINS
WITH RAIN AND SNOW TUESDAY MORNING THROUGH WEDNESDAY MORNING. WINTER
DRIVING CONDITIONS ARE POSSIBLE OVER HIGHER MOUNTAIN PASSES. WIND
AND RAIN WILL DEVELOP IN THE SACRAMENTO VALLEY BY LATE TUESDAY AND
CONTINUE INTO EARLY WEDNESDAY. THE WEATHER SYSTEM WILL SHIFT EAST BY
WEDNESDAY AFTERNOON.

ANOTHER WEATHER SYSTEM MAY AFFECT THE AREA FRIDAY.

* HIGH WIND WATCH............SEE WWUS76 KSTO - NPWSTO FOR DETAILS *

* SPECIAL WEATHER STATEMENT..SEE WWUS86 KSTO - SPSSTO 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

SG