SPECIAL WEATHER STATEMENT
Issue Date: 922 AM PST SAT DEC 5 2009
Expiration: 630 PM PST SAT DEC 05 2009
...A WET UNSETTLED PATTERN DEVELOPING FOR SOUTHERN AND CENTRAL
CALIFORNIA NEXT WEEK...
A SERIES OF PACIFIC STORMS ARE EXPECTED TO MOVE INTO CALIFORNIA
NEXT WEEK...BRINGING PERIODS OF RAIN AND MOUNTAIN SNOW TO THE
STATE.
A COLD UPPER LEVEL LOW PRESSURE SYSTEM WILL DEVELOP ACROSS OREGON
AND NORTHERN CALIFORNIA ON SUNDAY...INCREASING ONSHORE FLOW AND
LOW LEVEL MOISTURE ACROSS SOUTHERN AND CENTRAL CALIFORNIA. DRIZZLE
OR LIGHT SHOWERS WILL BE POSSIBLE FOR THE FOOTHILLS AND COASTAL
SLOPES...ESPECIALLY ALONG WEST AND SOUTHWEST FACING SLOPES. AS
THE SYSTEM DIGS SOUTH...AN INCREASING CHANCE FOR RAIN AND
MOUNTAIN SNOW WILL OCCUR ACROSS THE REGION ON SUNDAY NIGHT...WITH
PRECIPITATION BECOMING LIKELY ON MONDAY.
THE MAIN IMPACT OF THE FIRST STORM SYSTEM WILL OCCUR ON MONDAY AS
THE TROUGH OF LOW PRESSURE WILL BRING AT LEAST ONE HALF INCH TO
ONE AND ONE HALF INCHES OF RAIN THROUGH MONDAY NIGHT...WITH
LOCAL AMOUNTS EXCEEDING 3 INCHES ACROSS SOUTH AND SOUTHWEST
FACING SLOPES. THE GREATEST THREAT OF PRECIPITATION FOR THE
STATION FIRE BURN AREA WILL BE LATE MONDAY MORNING THROUGH MONDAY
AFTERNOON...WHEN THERE WILL BE THE POTENTIAL FOR MODERATE TO BRIEF
HEAVY SHOWERS. SNOW LEVELS WILL LIKELY BEGIN AROUND 5000 FEET ON
SUNDAY NIGHT AND LOWER TO NEAR 4000 FEET ON MONDAY. SNOW LEVELS
COULD LOCALLY LOWER TO NEAR 3000 FEET IN HEAVIER PRECIPITATION.
SNOWFALL AMOUNTS IN THE MOUNTAINS ARE GENERALLY EXPECTED TO RANGE
BETWEEN 3 TO 8 INCHES WITH THIS FIRST STORM. THE LOW SNOW LEVELS
COULD IMPACT THE INTERSTATE 5 CORRIDOR NEAR THE GRAPEVINE...AND
COULD BRING SOME LIGHT SNOWFALL TO PORTIONS OF THE ANTELOPE VALLEY
AND CUYAMA VALLEY.
LATER IN THE WEEK...A SECOND STORM WILL LIKELY IMPACT SOUTHERN AND
CENTRAL CALIFORNIA WEDNESDAY INTO THURSDAY. DUE TO THIS SYSTEMS
SUBTROPICAL COMPONENT...THIS SYSTEM WILL LIKELY BE MORE
POWERFUL...WARMER...AND BE A MORE EFFICIENT RAIN MAKER.
HOWEVER...THERE STILL EXISTS SOME UNCERTAINTY IN THE EXACT
PLACEMENT OF HEAVIER RAINFALL ACROSS THE AREA. SINCE THIS STORM
WILL LIKELY HAVE A GREATER PRECIPITATION DURATION AND
INTENSITY...RESIDENTS AND LOCAL EMERGENCY OFFICIALS ARE URGED TO
STAY TUNED TO THE LATEST NATIONAL WEATHER SERVICE FORECASTS FOR
UPDATES ON THIS DEVELOPING WEATHER SITUATION. IN ADDITION TO THE
POTENTIAL FOR HEAVY RAIN...THERE WILL LIKELY BE LARGE SWELL AND
HIGH SURF CONDITIONS FOR THE COASTAL WATERS.
A THIRD SYSTEM REMAINS A POSSIBILITY FOR LATE NEXT WEEK...POSSIBLY
BRINGING ADDITIONAL PRECIPITATION TO THE REGION.
HAZARDOUS WEATHER OUTLOOK
Issue Date: 600 AM PST SAT DEC 5 2009
Expiration: 600 AM PST SUN DEC 06 2009
THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.
.DAY ONE... TODAY
NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
.DAYS TWO THROUGH SEVEN... SUNDAY THROUGH FRIDAY
THE FIRST OF A SERIES OF STORM SYSTEMS WILL MOVE OVER THE AREA ON
MONDAY BRINGING AT LEAST ONE HALF INCH TO ONE AND ONE HALF INCHES OF
RAIN THROUGH MONDAY NIGHT. LOCAL AMOUNTS COULD EXCEED 3 INCHES
ACROSS SOUTH AND SOUTHWEST FACING SLOPES. DUE TO THE SYSTEM
SOUTHERLY FLOW COMPONENT...A THREAT OF MODERATE TO POSSIBLY HEAVY
RAINFALL AMOUNTS EXISTS FOR THE RECENT BURN AREA OF SANTA
BARBARA...VENTURA...AND LOS ANGELES COUNTIES. SNOW LEVELS WILL
LOWER TO NEAR 4000 FEET ON MONDAY. SNOWFALL AMOUNTS IN THE MOUNTAINS
ARE GENERALLY EXPECTED TO RANGE BETWEEN 3 TO 8 INCHES WITH THIS
FIRST STORM. HOWEVER...LOCALLY LOWER SNOW LEVELS IN HEAVIER
PRECIPITATION COULD ALLOW SNOWFALL TO ACCUMULATE ON ROADWAY MOUNTAIN
PASSES AND PORTIONS OF THE ANTELOPE VALLEY AND CUYAMA VALLEY.
A SECOND STORM WILL LIKELY IMPACT SOUTHERN AND CENTRAL CALIFORNIA
FOR MID-TO-LATE WEEK. DUE TO THIS SYSTEMS SUBTROPICAL
COMPONENT...THIS SYSTEM WILL LIKELY BE MORE POWERFUL...WARMER...AND
A MORE EFFICIENT RAIN MAKER. HOWEVER...THERE STILL EXISTS SOME
UNCERTAINTY IN THE EXACT PLACEMENT OF HEAVIER RAINFALL ACROSS THE
AREA. IN ADDITION TO THE POTENTIAL FOR HEAVY RAIN...THERE WILL
LIKELY BE LARGE SWELL AND HIGH SURF CONDITIONS FOR THE COASTAL
WATERS.
FOR UPDATES ON THE DEVELOPING WET AND POTENTIALLY HAZARDOUS WEATHER
PATTERN...STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA
SOURCE...OR LOG ON TO WWW.WEATHER.GOV ON THE INTERNET.
* SPECIAL WEATHER STATEMENT..SEE WWUS86 KLOX - SPSLOX FOR DETAILS *
.SPOTTER INFORMATION STATEMENT...
WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.
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