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NATIONAL WEATHER -SPECIAL WEATHER STATEMENT

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SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
634 PM PDT MON MAY 11 2015

CAZ034>041-044>046-051>054-059-087-088-547>550-130145-
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-SANTA YNEZ VALLEY-
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY-
SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS-
SANTA MONICA MOUNTAINS RECREATIONAL AREA-
SAN LUIS OBISPO COUNTY MOUNTAINS-SANTA BARBARA COUNTY MOUNTAINS-
VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
ANTELOPE VALLEY-CATALINA AND SANTA BARBARA ISLANDS-
SANTA CLARITA VALLEY-LOS ANGELES COUNTY SAN FERNANDO VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
SAN MIGUEL AND SANTA ROSA ISLANDS-SANTA CRUZ AND ANACAPA ISLANDS-
634 PM PDT MON MAY 11 2015

...COLD SPRING STORM SYSTEM TO IMPACT SOUTHWEST CALIFORNIA LATE
THIS WEEK...

AN UNSEASONABLY COLD STORM SYSTEM ORIGINATING FROM THE GULF OF
ALASKA WILL DIG SOUTHWARD INTO THE REGION BETWEEN THURSDAY AND
FRIDAY. AN INCREASING CHANCE OF SHOWERS WILL DEVELOP ON THURSDAY
AS THE TROUGH DROPS SOUTH INTO SOUTHERN CALIFORNIA. AS THE LOW
PRESSURE CENTER DRAWS CLOSER TO THE REGION ON THURSDAY
NIGHT...THERE WILL BE A SLIGHT CHANCE OF THUNDERSTORMS CAPABLE OF
PRODUCING BRIEF HEAVY DOWNPOURS AND HAIL. THERE IS A POSSIBILITY
THAT THE LOS ANGELES METRO AREA COULD BE IMPACTED BY SHOWERS AND
HAIL DURING THE FRIDAY MORNING COMMUTE. CONDITIONS WILL ALSO BE
FAVORABLE FOR ISOLATED WATERSPOUTS ACROSS THE COASTAL WATERS.

ANOTHER POTENTIAL IMPACT FROM THIS STORM SYSTEM WILL BE
UNSEASONABLY LOW SNOW LEVELS. SNOW LEVELS COULD FALL TO AROUND
5000 FEET BY FRIDAY MORNING...AND POSSIBLY LOWER IN HEAVIER
CONVECTIVE SHOWERS. A FEW INCHES OF SNOW WILL BE POSSIBLE AT THE
RESORT LEVELS...WHICH MAY REQUIRE THE ISSUANCE OF A WINTER WEATHER
ADVISORY AS WE DRAW CLOSER TO THE EVENT. IN ADDITION...GUSTY
SOUTHWEST WINDS UP TO 50 MPH WILL LIKELY ACCOMPANY THIS STORM IN
THE MOUNTAINS AND THE ANTELOPE VALLEY.

WITH THE SHOWERY NATURE OF THE SYSTEM...RAINFALL AMOUNTS WITH THIS
SYSTEM COULD BE QUITE VARIABLE. THERE IS A PERIOD WHERE LIGHT TO
MODERATE RAINFALL COULD OCCUR WITH THIS SYSTEM. RAINFALL AMOUNTS
BETWEEN ONE QUARTER AND ONE HALF INCH ARE POSSIBLE ACROSS THE
COASTS AND VALLEYS...WITH UP TO ONE INCH IN THE MOUNTAINS.
ISOLATED HIGHER AMOUNTS ARE POSSIBLE ALONG SOUTH AND SOUTHWEST
FACING SLOPES. RAINFALL RATES LOCALLY COULD APPROACH ONE HALF INCH
PER HOUR WILL BE POSSIBLE WITH THUNDERSTORMS. AS A RESULT...IF A
THUNDERSTORM WERE TO MOVE OVER A RECENT BURN AREA...THERE IS THE
POSSIBILITY OF MINOR MUD AND DEBRIS FLOWS.

RESIDENTS OF SOUTHWEST CALIFORNIA SHOULD MONITOR THE LATEST
NATIONAL WEATHER SERVICE PRODUCTS FOR THIS DEVELOPING WEATHER
SITUATION. ANYONE PLANNING TO TRAVEL TO THE LOCAL MOUNTAIN SHOULD
PREPARE FOR THE POSSIBILITY OF SNOW SHOWERS AND GUSTY WINDS.