Drought Information Statement
Issued by NWS Las Vegas, NV

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

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
747 PM PST WED MAY 27 2015

...EXCEPTIONAL DROUGHT CONDITIONS REMAIN IN THE EASTERN SLOPES OF
THE SOUTHERN SIERRA NEVADA WITH MODERATE TO SEVERE DROUGHT
CONDITIONS ELSEWHERE...

SYNOPSIS...AFTER A DRY START TO SPRING, THE LATER HALF OF SPRING HAS
TRENDED WETTER, ESPECIALLY LATE APRIL AND MAY, ACROSS MUCH OF THE
AREA DUE TO A VERY ACTIVE LATE SEASON PATTERN. SEVERAL STORM SYSTEMS
HAVE PASSED ACROSS THE AREA IN LATE APRIL AND MAY DEPOSITING
GENEROUS PRECIPITATION AMOUNTS ESPECIALLY ACROSS MUCH OF LINCOLN,
ESMERALDA, NORTHERN INYO AND NORTHERN MOHAVE COUNTIES. IN THE HIGHER
ELEVATIONS ABOVE 8500 FEET THERE HAVE BEEN AREAS THAT HAVE SEEN IN
EXCESS OF 6 INCHES OF SNOW WHICH IS WELL ABOVE AVERAGE FOR THE MONTH
AND RANKS THIS MAY AS ONE OF THE SNOWIEST - IF NOT THE SNOWIEST - ON
RECORD IN THE LAST 10-12 YEARS. EVEN SOME LOWER ELEVATION SPOTS HAD
SIGNIFICANT LATE SEASON SNOW. MORE SNOW FELL IN DYER, NEVADA AT 4900
FEET IN ELEVATION IN MAY THAN IN ANY OTHER MONTH THIS SEASON WITH 2
INCHES ACCUMULATING.

THE SAN BERNARDINO COUNTY DESERTS HAVE BEEN THE EXCEPTION TO THIS
WET PATTERN WITH VERY LITTLE IN THE WAY OF PRECIPITATION FALLING.

OVERALL THE ACTIVE WEATHER PATTERN HAS NOT DONE ENOUGH TO IMPROVE
THE DROUGHT BUT HAS KEPT IT FROM BECOMING WORSE. HOWEVER, THE WARM
AND DRY WINTER, ESPECIALLY IN SOUTHEAST CALIFORNIA AND ESMERALDA
COUNTY, NEVADA HAS RESULTED IN MEAGER SNOWPACK. WHILE THE SNOWPACK
HAS IMPROVED IN MAY IT HAS NOT BEEN ENOUGH TO BRING ANY REAL RELIEF
TO THE DROUGHT.

THE LATEST U.S. DROUGHT MONITOR DEPICTS THAT THE EASTERN SLOPES OF
THE SOUTHERN SIERRA NEVADA, THE WHITE MOUNTAINS OF INYO COUNTY, THE
NORTHERN PORTION OF THE OWENS VALLEY OF CALIFORNIA AND WESTERN
ESMERALDA COUNTY, NEVADA ARE NOW IN D4, OR EXCEPTIONAL DROUGHT.
EXTREME DROUGHT, OR D3 CONDITIONS, EXISTS ACROSS EASTERN ESMERALDA
COUNTY AND CENTRAL NYE COUNTY, NEVADA AS WELL AS FAR NORTHWESTERN
SAN BERNARDINO COUNTY ALL BUT FAR SOUTHEAST INYO COUNTY IN
CALIFORNIA AS WELL AS FAR NORTHEAST MOHAVE COUNTY, ARIZONA. SEVERE
DROUGHT CONDITIONS, OR D2, EXIST ACROSS SOUTHWEST LINCOLN COUNTY
AND NORTHWEST CLARK COUNTY IN NEVADA, CENTRAL SAN BERNARDINO COUNTY
AND NORTHEAST MOHAVE COUNTY. DUE TO THE SEVERITY OF THE ONGOING
DROUGHT, DROUGHT CONDITIONS ARE EXPECTED TO PERSIST ACROSS THE AREA
DESPITE THE THE LATEST SEASONAL FORECAST (JUNE THROUGH AUGUST) FROM
THE CLIMATE PREDICTION CENTER THAT FORECASTS AN A EQUAL CHANCE FOR
ABOVE NORMAL, NEAR NORMAL OR BELOW NORMAL PRECIPITATION ACROSS THE
AREA. THERE IS ABOVE AVERAGE CONFIDENCE IN ABOVE NORMAL TEMPERATURES
ACROSS THE ENTIRE AREA WITH THE GREATEST CONFIDENCE OVER SOUTHEAST
CALIFORNIA AND SOUTHERN NEVADA.

SUMMARY OF IMPACTS...

AGRICULTURAL

THE INYO COUNTY, CALIFORNIA SUPERVISORS APPROVED A 23 PERCENT
REDUCTION IN IRRIGATION IN THE BISHOP CONE OF THE LOS ANGELES
DEPARTMENT OF WATER AND POWER`S AREA. RUNOFF INTO THE BISHOP CREEK
WATERSHED IS EXPECTED TO BE 50 PERCENT OF NORMAL FOR THE YEAR. THE
IRRIGATION MANAGEMENT IN PLACE WILL RESULT IN ALLOTTED DAYS FOR
WATER TO BE AVAILABLE FOR RANCHERS. THE BISHOP CREEK WATER
ASSOCIATION IS WORKING ON CONSERVATION MEASURES ALONG WITH SOUTHERN
CALIFORNIA EDISON, THE LOS ANGELES DEPARTMENT OF WATER AND POWER AS
WELL AS THE BISHOP PAIUTE TRIBE. AN AGREEMENT HAS BEEN REACHED TO
SUPPLY RANCHES IN THE OWENS VALLEY WITH WATER WITH THE LOS ANGELES
DEPARTMENT OF WATER AND POWER. DAMS HAVE BEEN OR ARE PLANNED FOR
CONSTRUCTION IN ORDER TO STORE WATER FOR RANCHES. RANCHERS WILL GET
ABOUT 3 PERCENT OF THE WATER THAT IS NORMALLY ALLOCATED TO CONTROL
DUST IN THE OWENS DRY LAKE BED. NO WATER IS EXPECTED TO FLOW TO LOS
ANGELES FROM THE OWENS VALLEY IN THE LOS ANGELES AQUEDUCT THIS
SUMMER FOR THE FIRST TIME SINCE IT WAS BUILT.

THE 2015 DEPARTMENT OF AGRICULTURE SECRETARIAL DROUGHT DESIGNATIONS
WERE ANNOUNCED EARLIER IN THE MONTH. THE U.S. DEPARTMENT OF
AGRICULTURE DESIGNATED CLARK, NYE, AND ESMERALDA COUNTIES IN NEVADA,
INYO AND SAN BERNARDINO COUNTIES IN CALIFORNIA AS PRIMARY NATURAL
DISASTER AREAS DUE TO THE ONGOING DROUGHT. LINCOLN COUNTY NEVADA AND
MOHAVE COUNTY ARIZONA QUALIFY AS CONTIGUOUS COUNTIES. FARM AND RANCH
OPERATORS IN THOSE COUNTIES ALL QUALIFY FOR LOW INTEREST EMERGENCY
LOANS FROM THE USDA FARM SERVICE AGENCY, PROVIDED ELIGIBILITY
REQUIREMENTS ARE MET.

LIVESTOCK PRODUCERS USING RANGELAND MAY NEED TO PROVIDE SUPPLEMENTAL
FEED FOR CATTLE. SOME RANCHERS IN NORTHWEST ARIZONA, THE OWENS
VALLEY OF CALIFORNIA AND LINCOLN COUNTY, NEVADA HAVE INCREASED WATER
HAULS FOR LIVESTOCK.

SOME FAMERS IN THE OWENS VALLEY HAVE RELOCATED CATTLE HERDS TO
IDAHO, WYOMING AND COLORADO.

GROUND 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. THE BILL REMAINS IN THE SENATE GOVERNMENT
AFFAIRS COMMITTEE. SENATE BILL 81 EXPANDS THE POWER OF THE STATE`S
WATER AUTHORITY TO GOVERN AND MANAGE GROUNDWATER SHORTAGES IN AREAS
SUFFERING FROM SEVERE DROUGHT. THE BILL REMAINS IN THE SENATE
FINANCE COMMITTEE.

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 ANGLES 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.

THE LACK OF SNOW HAS RESULTED IN THE SNOW TUBING AREA ON MT
CHARLESTON AT THE LAS VEGAS SKI AND SNOWBOARD RESORT BEING CLOSED
AND THE RESORT`S SKI RUNS CLOSED IN LATE MARCH.

THE NATURAL SPRING THAT PROVIDED WATER TO THE MOUNT CHARLESTON YOUTH
CAMP HAS STOPPED FLOWING. CLARK COUNTY WILL NEED TO SPEND ABOUT
$250,000 FOR WATER SHIPMENTS OVER A 38 WEEK PERIOD.

FIRE WEATHER

ABOVE NORMAL SIGNIFICANT WILDLAND FIRE POTENTIAL EXISTS TO JUNE,
JULY AND AUGUST ACROSS THE SOUTHERN SIERRA AND WHITE MOUNTAINS AS
WELL AS THE PANAMINT RANGE. NEAR NORMAL SIGNIFICANT WILDFIRE
POTENTIAL EXISTS ACROSS THE REST OF THE AREA.

THE ROUND FIRE DEVELOPED IN FAR NORTHWEST INYO COUNTY JUST NORTHWEST
OF BISHOP AND CROSSED THE COUNTY LINE INTO MONO COUNTY, CALIFORNIA
ON FEBRUARY 6TH BURNING 6532 ACRES.

WILDLIFE

IN LINCOLN COUNTY, ESPECIALLY IN NORTHERN PORTIONS, WILD HORSES HAVE
COME ONTO GRAZING LANDS AND EAT FORAGE INTENDED FOR GRAZING CATTLE
AND OTHER WILDLIFE. THIS HAS RESULTED IN DAMAGE TO SOME  GRAZING
LANDS.

CLIMATE SUMMARY...

PRECIPITATION THIS MONTH HAS HELPE PUSH TOTALS FOR THE WATER YEAR UP
ESPECIALLY ACROSS THE SOUTHERN GREAT BASIN.

 ARIZONA            PCPN        NORMAL     PER

 BEAVER DAM         3.53         5.42      65%
 PIPE SPRING NM     7.14         7.42      96%
 KINGMAN            5.12         5.55      92%
 WIKIEUP            4.47         6.90      65%

 CALIFORNIA

 BISHOP             2.13         4.50      47%
 DEATH VALLEY NP    1.51         1.90      79%
 BARSTOW-DAGGETT    1.79         3.07      58%
 NEEDLES            2.44         3.52      69%
 JOSHUA TREE        1.78         3.94      45%

 NEVADA

 LAS VEGAS          2.49         3.14      79%
 MT CHARLESTON     10.13        18.60      54%
 PAHRUMP            3.32         3.87      86%
 MESQUITE           3.74         6.06      62%
 CALIENTE           5.78         6.66      87%
 DYER               4.19         3.70     113%

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

PRECIPITATION/TEMPERATURE OUTLOOK...

THE LATEST SEASONAL FORECAST (JUNE THROUGH AUGUST)...ISSUED BY THE
CLIMATE PREDICTION CENTER...THERE IS AN A EQUAL CHANCE FOR ABOVE
NORMAL, NEAR NORMAL OR BELOW NORMAL PRECIPITATION ACROSS THE AREA.
THERE IS ABOVE AVERAGE CONFIDENCE IN ABOVE NORMAL TEMPERATURES
ACROSS THE ENTIRE AREA WITH THE GREATEST CONFIDENCE OVER SOUTHEAST
CALIFORNIA AND SOUTHERN NEVADA.

HYDROLOGIC SUMMARY AND OUTLOOK...

THE MID-MAY UPDATE FOR THE COLORADO RIVER BASIN SHOWED AN INCREASE
IN THE APRIL-JULY RUNOFF VOLUMES FOR THE FIRST TIME THIS SEASON DUE
TO THE ACTIVE MAY WEATHER. HOWEVER, THE OVERALL RUNOFF IS EXPECTED
TO BE WELL BELOW NORMAL DUE TO THE LACK OF WINTER PRECIPITATION.

AS OF MAY 18, 2015, LAKE MEAD`S ELEVATION WAS 1076.98 FEET OR 37
PERCENT CAPACITY. THE BUREAU OF RECLAMATION HAS PROJECTED TO RELEASE
9.0 MAF FROM LAKE POWELL IN WATER YEAR 2015...UP FROM THE 7.48 MAF
FOR 2014 WATER YEAR. HOWEVER, DOWNSTREAM REQUIREMENTS ARE ESTIMATED
AROUND 9.687 MAF. LAKE MEAD`S ELEVATION/STORAGE HAS PEAKED AND IS
FORECAST TO CONTINUE TO DECLINE THROUGH THE REST OF THE 2015 WATER
YEAR (END OF SEPTEMBER). LAKE MEAD HAS NOT RECORDED LAKE LEVELS BELOW
1080 FEET SINCE THE RESERVOIR WAS BEING FILLED IN MAY 1937.

LAKE POWELL`S ELEVATION WAS 3592.2 OR 45 PERCENT CAPACITY.

DATA FOR RESERVOIRS ACROSS THE REGION (AS OF 5/18/2015)

 RESERVOIR                      PERCENT FULL

LAKE MEAD                           37
LAKE MOHAVE                         97
LAKE HAVASU                         98

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, JUNE 18, 2015. 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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