Drought Information Statement
Issued by NWS San Diego, CA

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AXUS76 KSGX 070410
DGTSGX

DGTSGX
CAC059-065-071-073-312359-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SAN DIEGO CA
809 PM PDT FRI FEBRUARY 6 2015

...SAN DIEGO...ORANGE...SAN BERNARDINO...AND RIVERSIDE COUNTIES
INCLUDED IN USDA PRIMARY NATURAL DISASTER AREAS DUE TO LOSSES FROM
DROUGHT...

...EXTREME TO LOCALLY EXCEPTIONAL DROUGHT CONDITIONS CONTINUE OVER
PORTIONS OF SOUTHWESTERN CALIFORNIA...

SYNOPSIS...

PORTIONS OF SOUTHWESTERN CALIFORNIA HAVE EXPERIENCED TWO BELOW
AVERAGE RAINFALL SEASONS RESULTING IN A REDUCTION IN RESERVOIR AND
GROUNDWATER LEVELS. THESE CONDITIONS HAVE PROMPTED AN EXTREME
DROUGHT DEPICTION ON THE U.S. DROUGHT MONITOR MAPS WITHIN ORANGE
COUNTY...FAR WESTERN SAN BERNARDINO COUNTY...RIVERSIDE COUNTY WEST
OF THE MOUNTAINS...AND SAN DIEGO COUNTY WEST OF THE DESERTS. MUCH
OF ORANGE COUNTY HAS BEEN INCLUDED IN THE EXCEPTIONAL DROUGHT
CATEGORY THAT COVERS THE CENTRAL COAST OF CALIFORNIA. PORTIONS OF
THE HIGH DESERT EAST OF THE APPLE VALLEY...THE COACHELLA VALLEY...
AND MUCH OF THE SAN DIEGO COUNTY DESERTS REMAIN IN THE SEVERE
DROUGHT CATEGORY. THE U.S. DROUGHT MONITOR CLASSIFIES DROUGHT INTO
FIVE CATEGORIES OF INCREASING SEVERITY: ABNORMALLY DRY (D0)...
MODERATE DROUGHT (D1)...SEVERE DROUGHT (D2)...EXTREME DROUGHT
(D3)...AND EXCEPTIONAL DROUGHT (D4).

PLEASE NOTE THAT NEITHER NOAA OR THE NWS DECLARES DROUGHTS. DROUGHTS
IN THE STATE OF CALIFORNIA ARE DECLARED BY THE GOVERNOR THROUGH THE
RECOMMENDATION OF THE CALIFORNIA STATE DEPARTMENT OF WATER RESOURCES
AND THE STATE CLIMATOLOGIST. HOWEVER...LOCAL OFFICIALS CAN DECLARE
LOCAL DROUGHT OR WATER EMERGENCIES AT TIMES WHEN THE STATE OF
CALIFORNIA HAS NOT DECLARED AN OFFICIAL DROUGHT. LOCAL WATER
PURVEYORS CAN ALSO IMPLEMENT VOLUNTARY OR MANDATORY RESTRICTIONS ON
WATER USAGE IN RESPONSE TO CURRENT OR FORECAST WATER SUPPLY
CONDITIONS REGARDLESS OF DROUGHT DECLARATIONS. THIS DROUGHT
STATEMENT PROVIDES A SUMMARY OF PERTINENT INFORMATION TO ENHANCE
PUBLIC AWARENESS OF DROUGHT OR ABNORMALLY DRY CONDITIONS.

SUMMARY OF IMPACTS...

SURFACE STORAGE INCREASES AND GROUNDWATER RESERVES ESTABLISHED OVER
THE PAST FEW YEARS...AND THE AVAILABILITY OF IMPORTED WATER...ARE
HELPING MUCH OF SOUTHERN CALIFORNIA COPE THIS YEAR. SO WHILE WATER
SHORTAGES ARE NOT EXPECTED...MOST DISTRICTS HAVE NOW IMPLEMENTED
STAGE/LEVEL-ONE OR TWO MANDATORY OUTDOOR WATER USE RESTRICTIONS.

THE STATE WATER RESOURCES CONTROL BOARD APPROVED EMERGENCY
REGULATION TO ENSURE WATER AGENCIES AND THEIR CUSTOMERS INCREASE
WATER CONSERVATION IN URBAN SETTINGS OR FACE FINES OR OTHER
ENFORCEMENT. THE REGULATION IS INTENDED TO REDUCE OUTDOOR URBAN
WATER USE.

RECENT RAINS AND COOL WEATHER HAVE DIMINISHED THE WILDFIRE THREAT
ACROSS WILDLANDS.

OTHER IMPACTS...

THE LACK OF RAINFALL AND RUNOFF THIS WINTER HAS LOWERED THE FLOW IN
AREA RIVERS...RESULTING IN STRESSES ON INDIGENOUS VEGETATION AND
WILDLIFE.

WATER LEVELS IN WELLS FED BY RAINFALL AND LOCAL RUNOFF ARE DROPPING
ACROSS THE REGION. IN THE FALL 2014 REPORT FROM THE WESTERN
MUNICIPAL WATER DISTRICT...A SAMPLING OF OVER 1400 WELLS WITH STATIC
LEVELS HAD AN AVERAGE DECLINE OF 4.27 FEET. IN ADDITION...NUMEROUS
WELLS SHOWED DROPS OF 20 FEET OR MORE. MANY WELLS ACROSS THE REGION
MAY BE GOING DRY OR HAVE ALREADY DRIED UP.


CLIMATE SUMMARY...

ORANGE COUNTY HAS BEEN ONE OF THE DRIEST AREAS IN OUR REGION OVER
THE PAST FEW YEARS...WHILE RAINS HAVE BEEN MORE GENEROUS FARTHER
SOUTH IN SAN DIEGO COUNTY...AND NORTHEAST ACROSS SAN BERNARDINO
COUNTY WHERE DROUGHT CONDITIONS ARE NOT AS SEVERE. IN GENERAL...
THERE IS A ONE TO TWO YEAR PRECIPITATION DEFICIT SINCE JANUARY 2011
ACROSS EXTREME SOUTHWEST CALIFORNIA.


MONTHLY AND SEASONAL PRECIPITATION SUMMARY FOR SELECTED CITIES...

                    JANUARY 2015             SINCE OCTOBER 1 2014

                REPORTED   % OF NORMAL      REPORTED    % OF NORMAL

NEWPORT BEACH    0.27        13%              2.26         43%
TUSTIN           1.36        47%              5.74         79%

IDYLLWILD        0.58        12%              8.27         67%
RIVERSIDE        0.58        20%              3.81         66%
PALM SPRINGS     0.22        22%              1.09         38%

BIG BEAR LAKE    1.12        27%              9.81         99%
REDLANDS         0.53        20%              4.82         75%
EL MIRAGE        0.59        58%              1.87         75%

BORREGO SPRINGS  0.31        27%              1.63         61%
CAMPO            0.48        16%              5.01         70%
LAKE CUYAMACA    0.83        15%              7.10         46%
LINDBERGH FIELD  0.42        21%              5.29        104%


PRECIPITATION/TEMPERATURE OUTLOOK...

THE LATEST ONE MONTH AND 30 DAY OUTLOOK FROM NOAAS NATIONAL WEATHER
SERVICE CLIMATE PREDICTION CENTER FAVORS ABOVE NORMAL TEMPERATURES
AND NEAR NORMAL PRECIPITATION OVER SOUTHERN CALIFORNIA THROUGH
FEBRUARY. THE 90 DAY OUTLOOK THROUGH APRIL ALSO FAVORS ABOVE NORMAL
TEMPERATURES...BUT ALSO FAVORS ABOVE NORMAL PRECIPITATION.

HYDROLOGIC SUMMARY AND OUTLOOK...
NO SUSTAINED LARGER FLOWS CAN BE EXPECTED IN THE RIVERS AND
RESERVOIRS UNTIL THE NEXT BIG RAINFALL EVENT...OR A PROLONGED STORMY
PERIOD DEVELOPS ACROSS SOUTHERN CALIFORNIA.

THE LATEST U.S. SEASONAL DROUGHT OUTLOOK CALLS FOR DROUGHT
CONDITIONS ACROSS THE REGION TO ABATE SLIGHTLY THROUGH APRIL.

NEXT SCHEDULED ISSUANCE DATE...
THE NEXT SCHEDULED DROUGHT INFORMATION STATEMENT UPDATE WILL BE
ISSUED ON OR ABOUT MARCH 15TH.

&&

RELATED WEBSITES...

FOR ADDITIONAL INFORMATION ON THE USDA DISASTER DECLARATION SEE:
HTTP://DISASTER.FSA.USDA.GOV
GOVERNORS EMERGENCY PROCLAMATION: WWW.GOV.CA.GOV/NEWS.PHP?ID=18368.
CAL OES DROUGHT PAGE: WWW.CALOES.CA.GOV/NEWSANDMEDIA/PAGES/CURRENT%
20NEWS%20AND%20EVENTS/DROUGHT.ASPX
CALIFORNIA DATA EXCHANGE CENTER: CDEC.WATER.CA.GOV/
CALIFORNIA NEVADA RIVER FORECAST CENTER: WWW.CNRFC.NOAA.GOV/
DROUGHT MONITOR: DROUGHTMONITOR.UNL.EDU
U.S. DROUGHT PORTAL: HTTP://WWW.DROUGHT.GOV/DROUGHT/
CALIFORNIA DROUGHT PAGE: WATERSUPPLYCONDITIONS.WATER.CA.GOV/
CLIMATE PREDICTION CENTER: WWW.CPC.NCEP.NOAA.GOV
NATIONAL WEATHER SERVICE SAN DIEGO: WWW.WRH.NOAA.GOV/SGX/

ACKNOWLEDGMENTS...
CLIMATE PREDICTION CENTER
DROUGHT MONITOR
NATIONAL INTEGRATED DROUGHT INFORMATION SYSTEM
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD
CALIFORNIA DEPARTMENT OF WATER RESOURCES
CALIFORNIA STATE CLIMATOLOGIST
US ARMY CORPS OF ENGINEERS SOUTHERN DISTRICT

QUESTIONS AND COMMENTS...PLEASE REFER ALL QUESTIONS TO
W-SGX.WEBMASTER@NOAA.GOV.

&&

JAD













































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