Quantitative Precipitation Statement
Issued by NWS Los Angeles, CA

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000
FSUS46 KLOX 281232
QPSLOX

QUANTITATIVE PRECIPITATION FORECAST
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
426 AM PST SAT FEB 28 2015

PRECIPITATION FORECASTS IN INCHES ARE PROVIDED IN 3-HOUR
INCREMENTS UNTIL 1600 FOLLOWED BY 6-HOUR INCREMENTS UNTIL 0400.
THUNDERSTORM CHANCES COVER UP TO 0400 ON DAY 1 ONLY.

LIGHT RAINFALL AMOUNTS GREATER THAN ZERO BUT LESS THAN A TENTH OF AN
INCH ARE SHOWN AS LGT.

THE DISCUSSION COVERS THE PERIOD FROM: SAT FEB 28 2015 THROUGH SAT MAR 07 2015.

&&
                                    04-07  07-10  10-13  13-16  |  16-22  22-04

SAN LUIS OBISPO COUNTY...

LSRC1:CAMBRIA                        LGT    LGT    LGT    LGT   |   LGT    LGT
SMRC1:SANTA MARGARITA                LGT    LGT    LGT    LGT   |   LGT    LGT
NIPC1:LOPEZ LAKE                     LGT    LGT    LGT    LGT   |   LGT    LGT

SLO: PEAK 1-HR RATES: CST/VLY 0.11-0.25    FTHLS/MTNS 0.11-0.25
                      EXPECTED TO OCCUR BETWEEN  1400-2000
CHANCE THUNDERSTORMS: YES

&&
                                    04-07  07-10  10-13  13-16  |  16-22  22-04

SANTA BARBARA COUNTY...

SIYC1:SANTA MARIA CITY               LGT    LGT    LGT    LGT   |   LGT    LGT
SBTC1:SANTA BARBARA POTRERO          LGT    LGT    LGT    LGT   |   LGT    LGT
GBRC1:GIBRALTAR DAM                  LGT    LGT    LGT    LGT   |   LGT    LGT
SMCC1:SAN MARCOS PASS                LGT    LGT    LGT    LGT   |   LGT    LGT
SBFC1:SANTA BARBARA COUNTY BUILDING  LGT    LGT    LGT    LGT   |   LGT    LGT

SBA: PEAK 1-HR RATES: CST/VLY 0.11-0.25    FTHLS/MTNS 0.11-0.25
                      EXPECTED TO OCCUR BETWEEN  1600-2200
CHANCE THUNDERSTORMS: YES

&&
                                    04-07  07-10  10-13  13-16  |  16-22  22-04

VENTURA COUNTY...

MTDC1:MATILIJA DAM                   LGT    LGT    LGT    LGT   |   LGT    LGT
HRCC1:HOPPER CANYON                  LGT    LGT    LGT    LGT   |   LGT    LGT
FGWC1:FAGAN CANYON                   LGT    LGT    LGT    LGT   |   LGT    LGT
VTUC1:VENTURA COUNTY GOVT CENTER     LGT    LGT    LGT    LGT   |   LGT    LGT
MORC1:MOORPARK COUNTY YARD           LGT    LGT    LGT    LGT   |   LGT    0.2
CRXC1:CIRCLE X RANCH                 LGT    LGT    LGT    LGT   |   LGT    LGT

VTU: PEAK 1-HR RATES: CST/VLY 0.11-0.25    FTHLS/MTNS 0.01-0.10
                      EXPECTED TO OCCUR BETWEEN  2000-0200
CHANCE THUNDERSTORMS: YES

&&
                                    04-07  07-10  10-13  13-16  |  16-22  22-04

LOS ANGELES COUNTY...

SAUC1:SAUGUS                         LGT    LGT    LGT    LGT   |   LGT    0.2
PCDC1:PACOIMA DAM                    LGT    LGT    LGT    LGT   |   LGT    0.2
WFKC1:WEST FORK HELIPORT (MT WILSON) LGT    LGT    LGT    LGT   |   0.2    0.2
FLTC1:LA CANADA FLINTRIDGE           LGT    LGT    LGT    LGT   |   0.2    0.2
BDDC1:BIG DALTON DAM                 LGT    LGT    LGT    LGT   |   0.2    0.2
CQT  :LOS ANGELES DOWNTOWN (USC)     LGT    LGT    LGT    LGT   |   LGT    0.2
MLUC1:BIG ROCK MESA                  LGT    LGT    LGT    LGT   |   LGT    LGT

LAC: PEAK 1-HR RATES: CST/VLY 0.26-0.49    FTHLS/MTNS 0.26-0.49
                      EXPECTED TO OCCUR BETWEEN  2000-0400
CHANCE THUNDERSTORMS: YES

&&


DISCUSSION:

A COLD LOW PRESSURE SYSTEM WILL DROP INTO SOUTHERN CALIFORNIA
TODAY...THEN LINGERING INTO SUNDAY EVENING BEFORE SLOWLY MOVING
EASTWARD. THIS SYSTEM WILL BRING SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS TO THE AREA THROUGH SUNDAY NIGHT.

DUE TO THE SHOWERY NATURE OF THE PRECIPITATIONS...RAINFALL
TOTALS WILL VARY GREATLY ACROSS THE FORECAST AREA.

IN GENERAL...TOTALS OF ONE QUARTER TO ONE HALF INCH ARE
EXPECTED...WITH AMOUNTS OF ONE HALF INCH TO ONE INCH ACROSS THE
MOUNTAINS...THE SAN GABRIEL VALLEY...AND POSSIBLY PORTIONS OF THE
REMAINDER OF THE L.A. COUNTY VALLEYS AND THE VALLEYS OF ERN VTU
COUNTIES. LOCAL TOTALS UP TO 2 INCHES ARE POSSIBLE IN THE SAN
GABRIEL MOUNTAINS AND FOOTHILLS.

RAINFALL RATES WILL GENERALLY BE UNDER ONE QUARTER OR AN INCH
PER HOUR...BUT ISOLATED AND BRIEF RATES UP OVER ONE HALF INCH
PER HOUR ARE POSSIBLE....ESPECIALLY IN AND NEAR THUNDERSTORMS.

SNOW LEVELS ARE EXPECTED TO LOWER TO 4500 FEET LATE TODAY...THEN TO
BETWEEN 3500 AND 4000 FEET LATE TONIGHT AND SUNDAY...AND LINGER AT
THOSE LEVELS SUNDAY NIGHT. ON AVERAGE...EXPECT A TOTAL OF 4 TO 8
INCHES OF SNOW BETWEEN 5000 AND 6500 FEET...WITH TOTALS OF 8 TO 12
INCHES ABOVE 6500 FEET...AND 2 TO 4 INCHES BETWEEN 4000 AND 5000
FEET. THERE COULD BE LOCAL TOTALS AS HIGH AS 18 INCHES ACROSS
PORTIONS OF THE SAN GABRIEL MOUNTAINS...OR HIGHER ELEVATIONS IN
VENTURA COUNTY.

ANOTHER COLD SYSTEM WILL DROP SOUTHWARD INTO THE REGION MONDAY AND
MONDAY NIGHT...BRINGING ADDITIONAL SHOWER ACTIVITY TO SOUTHWESTERN
CALIFORNIA.

DRIER CONDITIONS SHOULD PREVAIL LATE TUESDAY THROUGH THE END OF NEXT
WEEK.

$$

DB







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