Drought Information Statement
Issued by NWS Las Vegas, NV

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AZZ001>003-036-CAZ519>527-NVZ014-022-300700-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
630 AM PDT THU APR 21 2016

...EXTREME TO EXCEPTIONAL DROUGHT CONDITIONS CONTINUE ACROSS WESTERN
SAN BERNARDINO...INYO AND ESMERALDA COUNTIES...

SYNOPSIS...THE VERY DRY CONDITIONS FROM MARCH PERSISTED INTO THE
FIRST WEEK OF APRIL. HOWEVER, BIG CHANGES OCCURRED APRIL 8-11 AS
ABUNDANT MOISTURE WAS DRAWN NORTHWARD INTO THE REGION PRODUCING THE
FIRST SIGNIFICANT RAINFALL SINCE LATE JANUARY. MUCH OF THE SOUTHERN
GREAT BASIN AND MOJAVE DESERT REPORTED RAINFALL TOTALS BETWEEN 0.50
INCHES AND 1.50 INCHES. ISOLATED LOCATIONS REPORTED IN EXCESS OF
2.00 INCHES ON APRIL 9. MOST OF THAT 2.00 INCHES FELL IN LESS THAN
AN HOURS LEADING TO FLASH FLOODING IN NORTH LAS VEGAS AND ALONG THE
MUDDY RIVER WEST OF MOAPA. ADDITIONAL FLOODING FROM LOCALIZED HEAVY
RAIN LASTED THROUGH MONDAY, APRIL 11. THE HEAVY RAINFALL SHOULD HELP
VEGETATION AND AGRICULTURAL INTERESTS IN THE SHORT TERM, HOWEVER DUE
TO THE LACK OF SNOWPACK IN THE SOUTHERN SIERRA OVER THE PAST FOUR
YEARS RESERVOIR STORAGE AND GROUND WATER RECHARGE WILL CONTINUE TO
SUFFER.

THE LATEST U.S. DROUGHT MONITOR DEPICTS THAT THE EASTERN SLOPES OF
THE SOUTHERN SIERRA NEVADA REMAIN IN D4, OR EXCEPTIONAL DROUGHT.
EXTREME DROUGHT, OR D3 CONDITIONS, EXISTS ACROSS THE OWENS VALLEY,
WHITE MOUNTAINS, WESTERN ESMERALDA COUNTY, NEVADA AND WESTERN SAN
BERNARDINO COUNTY, CALIFORNIA. SEVERE DROUGHT CONDITIONS, OR D2,
EXISTS ACROSS SOUTHWEST NYE COUNTY, EASTERN INYO AND CENTRAL SAN
BERNARDINO COUNTY, CENTRAL PARTS OF CLARK COUNTY. THE REST OF
EASTERN SAN BERNARDINO COUNTY, WESTERN MOHAVE COUNTY, NORTHEAST
CLARK AND SOUTHERN LINCOLN COUNTIES ARE IN D1 OR MODERATE DROUGHT
CONDITIONS. ACROSS FAR EASTERN MOHAVE COUNTY AND NORTHEASTERN
LINCOLN COUNTY IN NEVADA CONDITIONS ARE IN D0, OR ABNORMALLY DRY.

DUE TO THE SEVERITY OF THE ONGOING DROUGHT, DROUGHT CONDITIONS ARE
EXPECTED TO PERSIST ACROSS MUCH OF THE AREA WITH POTENTIAL
DEGRADATION OF CONDITIONS IN WESTERN ARIZONA.

THE LATEST SEASONAL FORECAST (MAY THROUGH JULY 2016) ISSUED BY THE
CLIMATE PREDICTION CENTER SHOWS THERE IS SLIGHTLY ABOVE NORMAL
CONFIDENCE FOR ABOVE NORMAL PRECIPITATION ACROSS INYO COUNTY,
NORTHERN SAN BERNARDINO COUNTY, SOUTHERN NEVADA AND MOHAVE COUNTY.
EQUAL CHANCES OF BELOW, NEAR, OR ABOVE NORMAL PRECIPITATION IN
SOUTHERN SAN BERNARDINO COUNTY. ABOVE NORMAL CONFIDENCE DURING THIS
THREE MONTH PERIOD FOR FOR ABOVE NORMAL TEMPERATURES ACROSS THE
ENTIRE REGION.

SUMMARY OF IMPACTS...

AGRICULTURAL

A CALIFORNIA NUT COMPANY HAS MOVED SOME OPERATIONS TO NORTHWEST
ARIZONA. ONCE FULLY DEVELOPED THE OPERATION COULD DRAW UP TO 24,000
ACRE-FEET A YEAR OUT OF KINGMAN`S AQUIFER.

FEBRUARY 25, 2016 DEPARTMENT OF AGRICULTURE SECRETARIAL DROUGHT
DESIGNATIONS WERE ANNOUNCED. THE U.S. DEPARTMENT OF AGRICULTURE
DESIGNATED CLARK, NYE, LINCOLN AND ESMERALDA COUNTIES IN NEVADA.

DECEMBER 23, 2015 INYO AND SAN BERNARDINO COUNTIES IN CALIFORNIA AS
PRIMARY NATURAL DISASTER AREAS DUE TO THE ONGOING DROUGHT. ALL FARM
AND RANCH OPERATORS IN THOSE COUNTIES ARE ELIGIBLE FOR LOW INTEREST
EMERGENCY LOANS FROM THE USDA FARM SERVICE AGENCY, PROVIDED
ELIGIBILITY REQUIREMENTS ARE MET. FARMERS IN ELIGIBLE COUNTIES HAVE
EIGHT MONTHS FROM THE DATE OF THE DECLARATION TO APPLY FOR LOANS
TO HELP COVER PART OF THEIR ACTUAL LOSSES.

IN LATE OCTOBER 2015, WATER FLOWED IN THE LOS ANGELES AQUEDUCT FOR
THE FIRST TIME IN SIX MONTHS AFTER WORKERS REMOVED AN EARTHEN AND
CONCRETE DAM THAT DIVERTED WATER. A DEAL WAS REACHED TO KEEP FLOWS
IN THE OWENS RIVER. THE LOS ANGELES DEPARTMENT OF POWER AND WATER
MOSTLY FULFILLED IRRIGATION CONTRACTS LAST SUMMER IN THE SOUTHERN
END OF THE OWENS VALLEY. DUE TO THE ONGOING DROUGHT, LIVESTOCK HAS
BEEN ESTIMATED TO BE REDUCED BY 40 TO 50 PERCENT IN THE OWENS VALLEY
IN RECENT YEARS.

WATER SUPPLY

THE LATEST U.S. BUREAU OF RECLAMATION GIVES LAKE MEAD ONLY A 37
PERCENT CHANCE OF FALLING INTO SHORTAGE CONDITIONS NEXT YEAR. BUT
THAT CHANCE RISES TO 59 PERCENT IN 2018. THE U.S. BUREAU OF
RECLAMATION DECLARES A SHORTAGE WHENEVER AN ANNUAL STUDY PROJECTS
THE RESERVOIR LEVEL WILL BE LESS THAN 1075 FEET ABOVE SEA LEVEL ON
JANUARY 1. A SHORTAGE COULD FORCE ARIZONA AND CALIFORNIA TO
IMPLEMENT WATER RESTRICTIONS, AND SOME ARIZONA FARMERS WOULD LOSE
THE WATER THAT FLOWS TO THEM THROUGH THE CENTRAL ARIZONA PROJECT
CANAL.

THE NEVADA DROUGHT FORUM, A STATEWIDE PANEL, HAS RECOMMENDED
STATEWIDE WATER METERING, WATER EFFICIENCY STANDARDS FOR NEW
DEVELOPMENT AND ADOPTING TIER RATE STRUCTURES TO PROMOTE
CONSERVATION. THE STATE`S BIGGEST WATER USER, AGRICULTURE, WOULD BE
ENCOURAGED TO USE DRIP IRRIGATION, CROP COVERING AND CONVERT
PLANTINGS TO LESS THIRSTY VARIETIES. THE REPORT ALSO ASKS LOCAL
GOVERNMENTS TO ADDRESS THE ISSUE OF THIRSTY LANDSCAPING REQUIREMENTS
SET BY MANY HOMEOWNERS ASSOCIATIONS. THE SOUTHERN NEVADA WATER
AUTHORITY`S CASH FOR GRASS PROGRAM HAS BEEN VERY SUCCESSFUL AND HAS
REPLACED MORE THAN 173 MILLION SQUARE FEET OF TURF GRASS (MORE THAN
3,000 FOOTBALL FIELDS) WITH LANDSCAPING THAT`S A BETTER FIT FOR
NEVADA`S CLIMATE.

THE VICE PRESIDENT OF SUSTAINABILITY FOR MGM RESORTS INTERNATIONAL
TOLD A PANEL OF THE NEVADA DROUGHT FORUM THAT CONSERVATION EFFORTS
BY THE COMPANY HAVE SAVED ABOUT 2 BILLION GALLONS OF WATER SINCE
2008. THE COMPANY HAS INSTALLED LOW-FLOW FIXTURES AND CHANGED
METHODS FOR DOING LAUNDRY AS PART OF THEIR WATER CONSERVATION
EFFORTS.

GROUND WATER

GREAT BASIN UNIFIED AIR POLLUTION CONTROL DISTRICT BOARD APPROVED A
REVISED STATE IMPLEMENTATION PLAN WHICH WILL HELP BRING OWENS LAKE
INTO COMPLIANCE WITH PM10 REGULATIONS WHILE SAVING WATER.

NEVADA GOVERNOR SANDOVAL ISSUED AN EXECUTIVE ORDER ESTABLISHING A
NEVADA DROUGHT FORUM TO BRING TOGETHER THE BEST MINDS, MANAGERS AND
ALL INTERESTED STAKEHOLDERS TO ACCESS THE DROUGHT IN NEVADA. THE
FORUM WILL IDENTIFY BEST CONSERVATION PRACTICES AND POLICY NEEDS,
AND MAKE RECOMMENDATIONS TO THE GOVERNOR REGARDING A PLAN.

THE LOS ANGELES DEPARTMENT OF WATER AND POWER IS PLANNING FOUR NEW
PRODUCTION WELLS IN INYO COUNTY. ONE WILL REPLACE A WELL IN LAWS,
TWO IN BISHOP AND ONE IN BELL CANYON WEST OF BIG PINE.

THE NEVADA 78TH LEGISLATURE IS DISCUSSING TWO BILLS RELATED TO
GROUND WATER. SENATE BILL 65 WOULD UPDATE LANGUAGE AFFECTING WATER
RIGHTS AND GROUNDWATER AS WELL AS IMPLEMENT SEVERAL CHANGES TO LAWS
AFFECTING DOMESTIC WELLS. SENATE BILL 81 EXPANDS THE POWER OF THE
STATE`S WATER AUTHORITY TO GOVERN AND MANAGE GROUNDWATER SHORTAGES
IN AREAS SUFFERING FROM SEVERE DROUGHT. BOTH BILLS FAILED TO GET OUT
OF COMMITTEE DURING THE NEVADA 78TH LEGISLATURE.

INYO COUNTY SUPERVISORS PASSED A THREE-PAGE DROUGHT PROCLAMATION FOR
INYO COUNTY. THEY NOTED THE SERIOUSNESS OF THE SITUATION BY
POINTING OUT THE VERY LOW SNOWPACK IN THE SOUTHERN SIERRA, DRY WELLS
AROUND BISHOP AND CONCERNS ABOUT USE OF WATER ON THE DRY LAKE AND
THE NEED FOR LOS ANGELES DEPARTMENT OF WATER AND POWER AND INYO
COUNTY TO PLAN FOR DRY TIMES.

RECREATION/TOURISM

THE LOW LAKE LEVELS IN LAKE MEAD CONTINUE TO IMPACT RECREATIONAL
BOATING CHANNELS BY REDUCING AREAS THAT BOATS CAN PASS THROUGH. THE
FALLING LAKE LEVEL HAS RESULTED IN THE CONTINUED CLOSURE OF THE ECHO
BAY MARINA AND BOAT LAUNCH RAMP AT ECHO BAY.

NATURAL SPRINGS IN THE SHEEP MOUNTAIN RANGE IN SOUTHERN NEVADA HAVE
RUN DRY IN SOME INSTANCES FORCING HIKERS TO HAVE TO BRING WATER WITH
THEM.

FIRE WEATHER

THE LATEST SIGNIFICANT WILDLAND FIRE POTENTIAL OUTLOOK FOR THE REST
OF APRIL CALLS FOR NORMAL ACTIVITY ACROSS THE ENTIRE AREA.

FOR MAY ABOVE NORMAL SIGNIFICANT FIRE POTENTIAL WILL DEVELOP IN
THE FINE FUEL AREAS OF NORTHWEST ARIZONA.

FOR JUNE-JULY ABOVE NORMAL SIGNIFICANT FIRE POTENTIAL WILL CONTINUE
ACROSS NORTHWEST ARIZONA AND EXPAND INTO SOUTHERN NEVADA, AS WELL
AS DEVELOP IN THE SOUTHERN SIERRA NEVADA.

AN AERIAL SURVEY WAS DONE BETWEEN AUGUST 10TH AND 14TH ACROSS THE
SOUTHERN SIERRA NEVADA IN SOUTHWEST INYO COUNTY, CALIFORNIA AND
SHOWED SOME POCKETS IN WHICH GREATER THAN 15 TREES PER ACRE WERE
DYING DUE TO STRESS FROM THE DROUGHT AND OTHER SOURCES SUCH AS BUGS.

WILDLIFE

CONSERVATIONISTS AND GOVERNMENT AGENCIES CAME TOGETHER TO BUILD A
WATER CATCHMENT FACILITY IN THE RUGGED BLACK MOUNTAINS IN WESTERN
MOHAVE COUNTY. THE PROJECT WILL PROVIDE WATER FOR BIGHORN SHEEP AND
OTHER WILDLIFE IN THE AREA.

THE BUREAU OF LAND MANAGEMENT CONDUCTED AN EMERGENCY ROUNDUP OF WILD
HORSES IN THE SPRING MOUNTAINS OF SOUTHERN NEVADA FROM AUGUST 29TH
THROUGH SEPTEMBER 2ND IN THE COLD CREEK AREA. A TOTAL OF 201 HORSES
WERE ROUNDED UP. THE HORSES WERE SUFFERING WEIGHT LOSS DUE TO
STARVING FROM THE DROUGHT, WHICH HAS SIGNIFICANTLY REDUCED THE
AMOUNT OF VEGETATION THAT CAN GROW FOR THE HORSES TO EAT. SOME
HORSES WERE EATING THE BARK OF JOSHUA TREES BECAUSE THEY HAD NOTHING
ELSE TO EAT. A TOTAL OF 28 HORSES FROM THE 201 ROUNDED UP HAD TO BE
EUTHANIZED BECAUSE THEY WERE SO BADLY EMACIATED. THE REMAINING
HORSES WERE TAKEN TO A FACILITY TO BE FED AND NURTURED BACK TO
HEALTH.

CLIMATE SUMMARY...

DATA BELOW IS OCTOBER 1ST THROUGH APRIL 20TH

 ARIZONA            PCPN     NORMAL     PER

BEAVER DAM          6.50     5.21      125%
PIPE SPRING NM      5.96     5.25      114%
KINGMAN             4.13     6.54       63%
WIKIEUP             4.46     6.75       66%


 CALIFORNIA

BISHOP              2.91     4.31       68%
DEATH VALLEY NP     2.12     1.87      113%
BARSTOW-DAGGETT     1.98     3.02       66%
NEEDLES             2.68     3.43       78%
JOSHUA TREE         3.38     3.61       94%

 NEVADA

LAS VEGAS           2.99     3.02       99%
MT CHARLESTON      15.64    17.95       87%
PAHRUMP             4.93     3.70      133%
MESQUITE            4.43     5.83       78%
CALIENTE            8.24     6.17      133%
DYER                3.49     3.22      108%

 PCPN   - 2016 WATER YEAR PRECIPITATION
 NORMAL - WATER YEAR NORMAL (STARTS OCT 1)
 PER    - PERCENT OF NORMAL

PRECIPITATION/TEMPERATURE OUTLOOK...

THE LATEST SEASONAL FORECAST (MAY THROUGH JULY 2016) ISSUED BY THE
CLIMATE PREDICTION CENTER SHOWS THERE IS SLIGHTLY ABOVE NORMAL
CONFIDENCE FOR ABOVE NORMAL PRECIPITATION ACROSS INYO COUNTY,NORTHERN
SAN BERNARDINO COUNTY, SOUTHERN NEVADA AND MOHAVE COUNTY.EQUAL
CHANCES OF BELOW, NEAR, OR ABOVE NORMAL PRECIPITATION IN SOUTHERN
SAN BERNARDINO COUNTY. ABOVE NORMAL CONFIDENCE DURING THIS THREE
MONTH PERIOD FOR FOR ABOVE NORMAL TEMPERATURES ACROSS THE ENTIRE
REGION.

HYDROLOGIC SUMMARY AND OUTLOOK...

THE COLORADO BASIN WATER SUPPLY FORECAST FOR APRIL-JULY RUNOFF
VOLUMES FOR THE MAINSTEM OF THE COLORADO RIVER ARE EXPECTED TO BE
BELOW AVERAGE. WHILE FOR THE VIRGIN RIVER BASIN RUNOFF VOLUMES ARE
EXPECTED TO BE BELOW AVERAGE. FOR LAKE POWELL THE APRIL-JULY INFLOW
FORECAST IS 5.3 MAF OR 74% OF AVERAGE.

AS OF APRIL 20, 2016, LAKE MEAD`S ELEVATION WAS 1077.60 FEET OR 38
PERCENT CAPACITY. THE MOST PROBABLE OUTLOOK HAS LAKE MEAD ELEVATION
DROPPING TO AROUND 1070 FEET AT THE END OF JUNE, THEN HOVERING
BETWEEN 1070 AND 1075 FEET THROUGH THE END OF SEPTEMBER. THE
RESERVOIR ELEVATION IS FORECAST TO RISE ONLY BACK TO AROUND 1080
FEET IN EARLY 2017. LAKE MEAD HAS NOT RECORDED LAKE LEVELS BELOW
1075 FEET SINCE THE RESERVOIR WAS BEING FILLED IN MAY 1937.

LAKE POWELL`S CURRENT ELEVATION IS 3591.21 OR 45 PERCENT CAPACITY.

DATA FOR RESERVOIRS ACROSS THE REGION (AS OF 4/20/2016)

RESERVOIR                   PERCENT FULL
LAKE MEAD                         38
LAKE MOHAVE                       95
LAKE HAVASU                       94

THE EASTERN SIERRA SNOW SURVEY RESULTS FOR APRIL 1 WERE:

                       AVG SWE             PCT OF NORM
                                              TO DATE

ROCK CREEK AREA         5.1 IN                 47
BISHOP AREA            13.5 IN                 68
BIG PINE CREEK AREA     5.6 IN                 34
COTTONWOOD AREA         6.0 IN                 45

SWE: SNOW WATER EQUIVALENT

NEXT ISSUANCE DATE...

DROUGHT INFORMATION STATEMENTS ARE NORMALLY ISSUED ON THE THIRD
THURSDAY OF EACH MONTH IN WHICH EXTREME DROUGHT CONDITIONS EXIST IN
ANY PORTION OF THE SOUTHERN GREAT BASIN AND MOJAVE DESERT. THE NEXT
SCHEDULED ISSUANCE IS THURSDAY, MAY 19, 2016. IF A SIGNIFICANT
CHANGE IN THE DROUGHT CONDITION IS ANTICIPATED...OR OCCURS PRIOR TO
THIS DATE...AN UPDATED STATEMENT WILL BE ISSUED.
&&

RELATED WEBSITES...

ADDITIONAL INFORMATION IS AVAILABLE AT THE FOLLOWING WEB SITES:

U.S. DROUGHT MONITOR
DROUGHTMONITOR.UNL.EDU

NATIONAL INTEGRATED DROUGHT INFORMATION SYSTEM
WWW.DROUGHT.GOV

CLIMATE PREDICTION CENTER
WWW.CPC.NCEP.NOAA.GOV

ADDITIONAL RIVER INFORMATION...

NATIONAL WEATHER SERVICE     WATER.WEATHER.GOV/AHPS
USGS                         WATER.USGS.GOV/
COLORADO BASIN RFC           WWW.CBRFC.NOAA.GOV
CALIFORNIA-NEVADA RFC        WWW.CNRFC.NOAA.GOV

ADDITIONAL SITES:

NEVADA DIVISION OF WATER RESOURCES   WATER.NV.GOV
CALIFORNIA DEPT OF WATER RESOURCES   WWW.WATER.CA.GOV
ARIZONA DEPT OF WATER RESOURCES      WWW.AZWATER.GOV

NEVADA STATE CLIMATE OFFICE          WWW.CLIMATE.UNR.EDU
CALIFORNIA STATE CLIMATE OFFICE      WWW.CLIMATE.WATER.CA.GOV
ARIZONA STATE CLIMATE OFFICE         AZCLIMATE.ASU.EDU
WESTERN REGION CLIMATE CENTER        WWW.WRCC.DRI.EDU

NWS FORECAST OFFICE LAS VEGAS        WEATHER.GOV/LASVEGAS

ACKNOWLEDGMENTS...
THE DROUGHT MONITOR IS A MULTI-AGENCY EFFORT INVOLVING THE NATIONAL
WEATHER SERVICE AND NATIONAL AND WESTERN REGIONAL CLIMATIC
DATA CENTERS...THE USDA...STATE AND REGIONAL CENTER CLIMATOLOGISTS
AND THE NATIONAL DROUGHT MITIGATION CENTER.

QUESTIONS OR COMMENTS...
IF YOU HAVE ANY QUESTIONS OR COMMENTS...PLEASE CONTACT:

NATIONAL WEATHER SERVICE - LAS VEGAS
PHONE...702-263-9744
W-VEF.WEBMASTER@NOAA.GOV

$$

WFO LAS VEGAS
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