Drought Information Statement
Issued by NWS San Joaquin Valley, CA

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AXUS76 KHNX 270719 RRA
DGTHNX
CAC019-029-031-039-043-047-107-270645-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY - HANFORD CA
1145 PM PDT TUE APR 26 2016

...EXTREME TO EXCEPTIONAL DROUGHT CONDITIONS PERSIST ACROSS THE
WFO HANFORD WARNING/FORECAST AREA...

SYNOPSIS...

ON JANUARY 17TH 2014...GOVERNOR BROWN DECLARED A DROUGHT EMERGENCY
FOR THE STATE OF CALIFORNIA. ON APRIL 25TH 2014...THE GOVERNOR
SIGNED AN EMERGENCY DROUGHT PROCLAMATION. ON SEPTEMBER 16TH 2014...
GOVERNOR BROWN SIGNED LEGISLATION THAT REGULATES GROUNDWATER FOR THE
FIRST TIME IN CALIFORNIA/S HISTORY.

ON MARCH 24TH 2015...FRESNO COUNTY DECLARED A DROUGHT EMERGENCY.

ON MARCH 21ST 2016...PRESIDENT OBAMA ISSUED A MEMORANDUM TO ENSURE
THAT ALL LEVELS OF GOVERNMENT...STATE...LOCAL AND FEDERAL...
COLLABORATE WITH EACH OTHER TO ENABLE PRODUCTIVE AND WORKABLE
SOLUTIONS TO REDUCE SOCIAL AND ECONOMIC IMPACTS OF DROUGHT AND
BUILD RESILIENCE TO IT.

THE LATEST DROUGHT MONITOR /APRIL 21ST 2016/ DEPICTS EXTREME DROUGHT
CONDITIONS /CATEGORY 3/...IN THE KERN COUNTY DESERT IN ADDITION TO THE
SAN JOAQUIN VALLEY AND SIERRA FOOTHILLS FROM FRESNO COUNTY NORTHWARD.
THE REST OF THE WFO HANFORD COUNTY WARNING FORECAST AREA REMAINS UNDER
EXCEPTIONAL DROUGHT CONDITIONS /CATEGORY 4/.

SUMMARY OF IMPACTS...

THERE CONTINUES TO BE SIGNIFICANT MEDIA COVERAGE ON THE ON-GOING DROUGHT
CONDITIONS. THESE REPORTS INCLUDE A CONTINUATION OF STRICT WATER CONSERVATION
MEASURES IN MANY COMMUNITIES. THERE CONTINUES TO BE LOCAL...STATE...AND
NATIONAL NEWS STORIES ABOUT DRY WELLS IN THE SOUTHERN SAN JOAQUIN VALLEY AS
WELL AS THE WEST SIDE OF THE SAN JOAQUIN VALLEY WHERE EXCESSIVE GROUNDWATER
DRAWDOWN HAS LEAD TO ARSENIC AND NITRATE CONTAMINATION AT SPECIFIC DEPTHS.
TULARE COUNTY HAS BEEN PARTICULARLY HARD HIT BY THE ABOVE IMPACTS AND
CONTINUES TO RECEIVE CDAA FUNDING FOR DEEPER WELL DRILLING AND REPLACEMENT
OF TOILET FACILITIES.

A HISTORIC 2014 LAW REQUIRING WATER AGENCIES IN CALIFORNIA TO REPLENISH
IMPERILED AQUIFERS HAS FORCED MANY LOCAL OFFICIALS TO BRAINSTORM ON WAYS TO
COMPLY WITH THIS LAW. WATER MANAGERS IN AND AROUND FRESNO HAVE MORE THAN 20
NEW GROUNDWATER RECHARGE PROJECTS IN THE WORKS. FOUR SAN JOAQUIN VALLEY
COUNTIES WERE AWARDED STATE GRANTS TO IMPREVE THEIR UNDERSTANDING OF
UNDERGROUND WATER SO THEY CAN PREPARE FOR THIS LAW WHICH TAKES EFFECT IN FOUR
YEARS. FRESNO...TULARE...KINGS AND MADERA COUNTIES WILL EACH GET $500,000 IN
PROPOSITION 1 FUNDING SET ASIDE FOR LOCAL GOVERNMENT TO ADHERE TO GUIDELINES
OF CALIFORNIA`S SUSTAINABLE GROUNDWATER MANAGEMENT ACT. THE MONEY WILL HELP
LOCAL GOVERNMENTS UNDERTAKE PROJECTS IN COOPERATION WITH OTHER AGENCIES TO
BRING THEIR BASINS INTO BALANCE AND MAKE THEM SUSTAINABLE IN THE LONG TERM.
ADDITIONALLY...CAL FIRE AND CDF CONTINUE THEIR EFFORTS TO REMOVE HUNDREDS OF
TREES KILLED BY PROLONGED DROUGHT AND BEETLE INFESTATION IN THE FOOTHILLS AND
MOUNTAINS.

PRECIPITATION DURING THE PAST 30 DAYS AVERAGED SLIGHTLY TO MUCH ABOVE NORMAL
IN MUCH OF MERCED COUNTY...THE SAN JOAQUIN VALLEY AND ADJACENT FOOTHILLS OF
MADERA COUNTY AND THE NORTH CENTRAL PORTION OF FRESNO COUNTY INCLUDING THE
CITIES OF FRESNO AND CLOVIS. ABOVE NORMAL PRECIPITATION WAS ALSO NOTED IN
WESTERN KERN COUNTY.  PRECIPITATION AVERAGED SLIGHTLY TO MUCH BELOW NORMAL
OVER THE REMAINDER OF THE CENTRAL CALIFORNIA INTERIOR DURING THE PAST 30
DAYS. THE 5 STATION SAN JOAQUIN PRECIPITATION INDEX IS STILL SHOWING A RECORD
LOW 3 YEAR ACCUMULATION.

AS OF APRIL 26TH...THE PERCENTAGE OF NORMAL SNOWPACK OVER THE SOUTHERN
SIERRA WAS 47 PERCENT OF NORMAL. ALTHOUGH THE SIERRA SNOWPACK IS CONSIDERABLY
HIGHER THAN THE PAST FEW SEASONS TO DATE...THIS IS ONLY ABOUT 40 PERCENT OF
THE APRIL 1ST AVERAGE. EVEN A NORMAL APRIL 1ST SNOWPACK WOULD NOT BE
SUFFICIENT TO FILL RESERVOIRS THIS SPRING. ALTHOUGH THERE WAS ABOUT A 5 PERCENT
INCREASE IN WATER LEVELS AT MOST OF THE MAJOR RESERVOIRS THIS MONTH DUE TO
SNOWMELT AND PRECIPITATION...WATER CAPACITIES ARE STILL WELL BELOW NORMAL FOR
THIS TIME OF YEAR. THE SEVERITY OF THE DROUGHT HAS LESSENED I AREAS THAT HAVE
RECEIVED AT LEAST 100 PERCENT OF THEIR NORMAL PRECIPITATION SINCE THE START OF
THE WATER YEAR /OCTOBER 1ST 2015/. THIS INCLUDES MUCH OF THE SAN JOAQUIN VALLEY
AND SIERRA FOOTHILLS FROM FRESNO COUNTY NORTHWARD. IN THESE AREAS...ABOVE
NORMAL PRECIPITATION DURING THE PAST 30 DAYS HAS BROUGHT SOME RECHARGE TO
GROUND WATER AQUIFERS AND APPRECIABLE WATER RISES IN MOST OF THE RESERVOIRS
FRO MELTING SNOW OVER THE HIGHEST ELEVATIONS OF THE SIERRA. IN THESE AREAS...
THE DROUGHT CLASSIFICATION WAS LOWERED BY ONE CATEGORY FROM EXCEPTIONAL TO
EXTREME. THIS ONLY MEANS THAT THESE PARTICULAR AREAS ARE NO LONGER IN THE WORST
2 PERCENTILE ON RECORD. WHILE THIS IS SOMEWHAT OF A REPRIEVE IN THE SHORT TERM
IT DOES NO UNDERMINE THE SEVERITY OF THE DROUGHT IN THE LONG TERM.

MUCH OF THE SOUTHERN HALF OF THE WFO HANFORD COUNTY WARNING AREA FARED WORSE
DURING THE PAST 30 DAYS WITH GENERALLY BELOW NORMAL PRECIPITATION. IN THIS
REGION THERE HAS BEEN LITTLE OR NO RECHARGE OF GROUND WATER OR WATER RISES
IN THE RESERVOIRS. A LARGE PERCENTAGE OF WELLS IN THIS PORTION OF THE SAN
JOAQUIN VALLEY REMAIN DRY. AS A RESULT...MUCH OF KINGS COUNTY...TULARE COUNTY
AND KERN COUNTY REMAIN IN EXCEPTIONAL DROUGHT STATUS. THIS INCLUDES THE
HIGHEST ELEVATIONS OF THE SIERRA FROM YOSEMITE NATIONAL PARK TO THE KERN COUNTY
LINE WHERE LONG TERM PRECIPITATION DEFICITS REMAIN EXTRAORDINARILY LARGE.

CLIMATE SUMMARY...

PRECIPITATION...

FOR THE CURRENT WATER YEAR OF OCTOBER 1ST THROUGH APRIL 26TH...FRESNO
RECEIVED 13.92 INCHES OF RAIN...WHICH IS 3.35 INCHES ABOVE THE AVERAGE THROUGH
APRIL 26TH OF 10.57 INCHES. THE WETTEST WATER YEAR TO DATE IN FRESNO FOR THE
PERIOD OCTOBER 1ST THROUGH APRIL 26TH WAS IN 1969 WITH A TOTAL OF 22.88 INCHES
OF RAIN.

FOR THE CURRENT WATER YEAR OF OCTOBER 1ST THROUGH APRIL 26TH...BAKERSFIELD
RECEIVED 4.117 INCHES OF RAIN...WHICH IS 1.20 INCHES BELOW THE AVERAGE RAINFALL
THROUGH APRIL 26TH OF 6.04 INCHES. THE WETTEST WATER YEAR TO DATE IN
BAKERSFIELD FOR THE PERIOD OF OCTOBER 1ST THROUGH APRIL 26TH WAS IN 1998
WITH A TOTAL OF 12.98 INCHES OF RAIN.

FOR MARCH...FRESNO REPORTED 2.93 INCHES OF RAIN. THE NORMAL RAINFALL FOR
THE MONTH OF MARCH IN FRESNO IS 2.03 INCHES.

FOR MARCH...BAKERSFIELD REPORTED 0.45 INCHES OF RAIN. THE NORMAL RAINFALL
FOR THE MONTH OF MARCH IN BAKERSFIELD IS 1.21 INCHES.

TEMPERATURE...

FOR MARCH...THE AVERAGE TEMPERATURE IN FRESNO WAS 58.7 DEGREES...WHICH WAS
2.1 DEGREES ABOVE NORMAL.

FOR MARCH...THE AVERAGE TEMPERATURE IN BAKERSFIELD WAS 60.5 DEGREES...WHICH
WAS 2.9 DEGREES ABOVE NORMAL.

YEAR TO DATE...FOR THE FIRST 117 DAYS OF 2016 /JANUARY 1ST THROUGH APRIL 26TH/...
THE AVERAGE TEMPERATURE IN FRESNO WAS 57.1 DEGREES WHICH IS THE WARMEST FIRST
117 DAYS ON RECORD. THE SECOND WARMEST FIRST 117 DAYS IN FRESNO OCCURRED IN
2000 AND 2004 WITH AN AVERAGE TEMPERATURE OF 55.8 DEGREES.

FOR THE FIRST 117 DAYS OF 2016 /JANUARY 1ST THROUGH APRIL 26TH/...THE AVERAGE
TEMPERATURE IN BAKERSFIELD WAS 58.6 DEGREES WHICH IS THE WARMEST FIRST 117
DAYS ON RECORD. THE SECOND WARMEST FIRST 117 DAYS IN BAKERSFIELD OCCURRED
IN 2004 WITH AN AVERAGE TEMPERATURE OF 58.1 DEGREES.

PRECIPITATION/TEMPERATURE OUTLOOK...

THE NOAA CLIMATE PREDICTION CENTER 6-10 DAY OUTLOOK ISSUED APRIL 26TH
FORECASTS A 60 PERCENT CHANCE OF WELL ABOVE NORMAL TEMPERATURES WITH NEAR
NORMAL PRECIPITATION OVER THE CENTRAL CALIFORNIA INTERIOR.

THE LATEST 8-14 DAY OUTLOOK FORECASTS ABOVE NORMAL TEMPERATURES AND A
30-40 PERCENT CHANCE OF ABOVE NORMAL PRECIPITATION OVER CENTRAL CALIFORNIA.

THE CLIMATE PREDICTION OUTLOOK FOR THE NEXT 30 DAYS...BASED ON DATA FROM THE
CURRENT STATE OF THE OCEANS AND ATMOSPHERE ALONG WITH CLIMATE MODELS...FROM
THE NOAA CLIMATE PREDICTION CENTER FORECASTS ABOVE NORMAL TEMPERATURES AND
SLIGHTLY ABOVE NORMAL PRECIPITATION OVER THE CENTRAL CALIFORNIA INTERIOR.

FOR THE THREE-MONTH PERIOD...MAY-JUNE-JULY...THE OUTLOOK FAVORS A
CONTINUATION OF ABOVE NORMAL TEMPERATURES AND ABOVE NORMAL PRECIPITATION
OVER THE CENTRAL CALIFORNIA INTERIOR /SEE LINKS BELOW/.

HYDROLOGIC SUMMARY AND OUTLOOK...

AN ACTIVE SOUTHERN BRANCH OF THE JET STREAM...WHICH IS VERY TYPICAL OF AN
EL NINO PATTERN...WAS VERY HELPFUL SO FAR THIS APRIL AND FREQUENTLY BROUGHT
RAIN BEARING PACIFIC STORMS INLAND THROUGH SOUTHERN CALIFORNIA. THE STORM
SYSTEMS BETWEEN BETWEEN APRIL 8TH AND 11TH TAPPED INTO SOME TROPICAL MOISTURE
AND BROUGHT BENEFICIAL PRECIPITATION INTO MUCH OF THE GOLDEN STATE. SOUTHERN
AND CENTRAL CALIFORNIA NORMALLY BEGIN THEIR TRANSITION TO THE DRY SEASON
DURING THE LATTER PART OF APRIL. ALTHOUGH WE ARE RUNNING AGAINST THE
CLIMATOLOGICAL CLOCK...IT LOOKS LIKE ONE AND POSSIBLY TWO OR MORE STORM
SYSTEMS WILL BRING PRECIPITATION INTO CENTRAL AND SOUTHERN CALIFORNIA DURING
THE NEXT 7 TO 10 DAYS.

THE CLIMATE PREDICTION CENTER INDICATES THAT AN EL NINO IS PRESENT BUT
WEAKENING AND WILL BECOME NEUTRAL BY EARLY SUMMER. AFTERWARD...THERE IS AN
INCREASING CHANCE OF A LA NINA PATTERN BY THE FALL OF 2016. THIS LONG
RANGE PROJECTION IS NOT AT ALL ENCOURAGING FOR DROUGHT-STRICKEN CALIFORNIA.
ALTHOUGH CONTINUED SNOWMELT DURING THE NEXT SEVERAL WEEKS WILL HELP RAISE
WATER LEVELS IN THE RESERVOIRS WHICH IN TURN HELP WATER SUPPLY NEEDS FOR
AGRIGULTURE AND SUSTAINMENT OF LIFE THROUGH THE SUMMER MONTHS FOR RESIDENTS
OF THE CENTRAL CALIFORNIA INTERIOR...THE FORECAST OF A PATTERN CHANGE TO
A LA NINA BY THE FALL AND POSSIBLY LONGER WILL PROBABLY ONLY EXACERBATE
THE LONG TERM DROUGHT.

NEXT ISSUANCE DATE...26 MAY 2016...OR EARLIER IF CONDITIONS CHANGE.

&&

RELATED WEBSITES...
CALIFORNIA DATA EXCHANGE CENTER: HTTP://CDEC.WATER.CA.GOV/
CALIFORNIA NEVADA RIVER FORECAST CENTER:
HTTP://WWW.CNRFC.NOAA.GOV/
DROUGHT MONITOR: HTTP://DROUGHT.UNL.EDU/DM/MONITOR.HTML
CALIFORNIA DROUGHT PAGE:
HTTP://WATERSUPPLYCONDITIONS.WATER.CA.GOV/
CLIMATE PREDICTION CENTER: HTTP://WWW.CPC.NOAA.GOV/INDEX.PHP
NATIONAL WEATHER SERVICE HANFORD: HTTP://WWW.WRH.NOAA.GOV/HNX/
WESTERN REGION CLIMATE CENTER: HTTP://WWW.WRCC.DRI.EDU


ACKNOWLEDGEMENTS...

CLIMATE PREDICTION CENTER
DROUGHT MONITOR
WESTERN REGION CLIMATE CENTER
CALIFORNIA NEVADA RIVER FORECAST CENTER
NATIONAL WEATHER SERVICE SAN JOAQUIN VALLEY -HANFORD
CALIFORNIA DEPARTMENT OF WATER RESOURCES
CALIFORNIA STATE CLIMATOLOGIST
CALIFORNIA OFFICE OF EMERGENCY SERVICES
U.S. BUREAU OF RECLAMATION
CAL FIRE
THE MERCURY NEWS /WWW.MERCURYNEWS.COM/
THE FRESNO BEE /WWW.FRESNOBEE.COM/

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

$$

DURFEE/OCHS

WEATHER.GOV/HANFORD



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