Drought Information Statement
Issued by NWS Las Vegas, NV

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AXUS75 KVEF 201139
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AZZ001>003-036-CAZ519>527-NVZ014-022-300700-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
440 AM PDT WED AUG 20 2014

...THE 2014 NORTH AMERICAN MONSOON SEASON BRINGS DROUGHT RELIEF TO
SOME AREAS BUT SPARES OTHERS...

SYNOPSIS...AFTER AN EXCEPTIONALLY DRY WINTER AND SPRING ACROSS THE
MOJAVE DESERT AND SOUTHERN GREAT BASIN, THE 2014 NORTH AMERICAN
MONSOON SEASON HAS BROUGHT SOME RELIEF TO PORTIONS OF OUR
DROUGHT-STRICKEN AREA. AS IS TYPICAL WITH PRECIPITATION IN THE
MONSOON SEASON, AREAS THAT RECEIVE RAINFALL SEE HIGHLY VARIABLE
AMOUNTS, OFTEN IN A SHORT DISTANCE. HOWEVER, PRECIPITATION IN THE
LAST 30 DAYS, WHICH INCLUDES THE ABOUT A THIRD OF THE NORTH AMERICAN
MONSOON SEASON, SHOWS AREAS ACROSS WESTERN MOHAVE COUNTY,
SOUTHEASTERN SAN BERNARDINO COUNTY, THE SPRING MOUNTAINS OF CLARK
COUNTY, WESTERN LINCOLN COUNTY, MUCH OF CENTRAL AND SOUTHERN NYE
COUNTY AND THE HIGHER ELEVATIONS OF CENTRAL INYO COUNTY RECEIVING
150 PERCENT OR MORE OF THE NORMAL PRECIPITATION. THIS HAS RESULTED
IN KEEPING DROUGHT CONDITIONS FROM DETERIORATING FURTHER IN THESE
AREAS. IN SOUTHEASTERN SAN BERNARDINO COUNTY, MANY AREAS SAW BETWEEN
300 AND 600 PERCENT OF THE NORMAL PRECIPITATION FOR THIS 30 DAY
PERIOD. IRON MOUNTAIN, CALIFORNIA HAS RECORDED 3.75 INCHES OF RAIN
SO FAR THIS AUGUST, MAKING IT THEIR WETTEST AUGUST ON RECORD BACK TO
1935 AND SECOND WETTEST MONTH EVER.

PRECIPITATION HAS LARGELY SPARED MUCH OF NORTHWESTERN SAN BERNARDINO
COUNTY, THE MORONGO BASIN, SOUTHWESTERN INYO COUNTY, DEATH VALLEY
AND NORTH-CENTRAL TO NORTHEAST INYO COUNTY IN CALIFORNIA. THESE
AREAS IN THE LAST 30 DAYS HAVE SEEN 75 PERCENT OR LESS OF THEIR
NORMAL PRECIPITATION. THE LACK OF PRECIPITATION IN THESE
AREAS COMBINED WITH INCREASED IMPACTS HAS RESULTED IN DROUGHT
CONDITIONS REMAINING STATUS QUO OR BECOMING WORSE.

THE LATEST U.S. DROUGHT MONITOR DEPICTS EXTREME DROUGHT, OR D3
CONDITIONS, ACROSS ALL OF ESMERALDA, CENTRAL NYE, SOUTHWEST LINCOLN
AND NORTHWEST CLARK COUNTIES IN NEVADA AS WELL AS FAR NORTHWESTERN
SAN BERNARDINO COUNTY ALL BUT FAR SOUTHEAST INYO COUNTY IN
CALIFORNIA AND A SMALL PORTION OF FAR SOUTHEAST MOHAVE COUNTY IN
ARIZONA. SEVERE DROUGHT CONDITIONS, OR D2, EXIST ACROSS THE
REMAINDER OF THE AREA. DUE TO THE SEVERITY OF THE ONGOING DROUGHT,
DROUGHT CONDITIONS ARE EXPECTED TO PERSIST OR BECOME WORSE ACROSS
THE AREA DESPITE THE 90 DAY OUTLOOK FOR SEPTEMBER, OCTOBER AND
NOVEMBER FROM THE CLIMATE PREDICTION CENTER SHOWING A 33 PERCENT
CHANCE OR BETTER FOR ABOVE NORMAL PRECIPITATION ACROSS THE AREA.

SUMMARY OF IMPACTS...

RECREATION/TOURISM

DUE TO THE LACK OF SPRING RUNOFF FROM SNOWMELT, ALPINE LAKES IN THE
HEADWATERS OF BISHOP CREEK HAVE EXPERIENCED WELL BELOW NORMAL WATER
LEVELS THIS SUMMER. THIS HAS IMPACTED RESORTS THAT CATER TO
FISHERMEN AND OTHERS THAT ENJOY RECREATIONAL ACTIVITIES IN THE HIGH
SIERRA. THE SOUTH LAKE BOAT LANDING HAS BEEN CLOSED FOR THE SUMMER
SEASON DUE TO THE DROUGHT.

LAKE LEVELS ON LAKE MEAD HAVE ALSO CONTINUED TO DECLINE WITH THE
LAKE DROPPING TO A NEW RECORD LOW OF 1081.82 FEET ON JULY 10TH. THIS
BROKE THE PREVIOUS RECORD LOW OF 1081.94 SET ON NOVEMBER 1, 2010.
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

ABOVE NORMAL SIGNIFICANT WILDFIRE POTENTIAL IS PREDICTED FOR
SEPTEMBER FOR THE WESTERN PORTIONS OF INYO COUNTY AND INTO OCTOBER
AND NOVEMBER. NEAR NORMAL WILDFIRE POTENTIAL IS PREDICTED ELSEWHERE
IN THE AREA. HOWEVER, DRY ANTECEDENT CONDITIONS HAVE CREATED A RISK
FOR RAPID WILDFIRE SPREADS WHERE LIGHTNING STRIKES HAVE IGNITED
WILDFIRES DUE TO THE VERY DRY VEGETATION.

AGRICULTURAL

THE UNITED STATES DEPARTMENT OF AGRICULTURE DESIGNATED CLARK, NYE,
LINCOLN AND ESMERALDA COUNTIES IN NEVADA, MOHAVE COUNTY IN ARIZONA
AND INYO AND SAN BERNARDINO COUNTIES IN CALIFORNIA AS PRIMARY
NATURAL DISASTER AREAS DUE TO THE RECENT DROUGHT. ALL 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.

IN LINCOLN COUNTY, FEED SUPPLIES HAVE BEEN DWINDLING DUE TO THE
CONTINUED DRY CONDITIONS. DRIED UP SPRINGS OR REDUCED FLOWS IN THEM
HAVE RESULTED IN A REDUCTION OF THE PRODUCTION OF CALF.

WILDLIFE

A VARIETY OF WILDLIFE LOCATED IN THE HUALAPAI MOUNTAINS IN SOUTHERN
MOHAVE COUNTY, INCLUDING ELK, BLACK BEAR AND MOUNTAIN LION MAY
VENTURE INTO KINGMAN OR OTHER POPULATED AREAS LOOKING FOR FOOD AND
WATER.

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

GROUND WATER

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.

URBAN AREA DROUGHT IMPACTS

SOME LANDSCAPE VEGETATION HAS DRIED OUT IN THE LAS VEGAS VALLEY,
ESPECIALLY WHERE MINIMAL IRRIGATION TAKES PLACE.

CLIMATE SUMMARY...

THE NORTH AMERICAN MONSOON SEASON FINALLY MADE ITS PRESENCE KNOWN IN
JULY ACROSS THE AREA FOLLOWING AN EXCEPTIONALLY DRY WINTER AND
SPRING THAT PUSHED THE AREA INTO A SEVERE TO EXTREME DROUGHT.
ALTHOUGH A FEW LIGHT SHOWERS FELL ACROSS THE AREA BETWEEN THE 1ST
AND 3RD, THIS MOISTURE WAS MORE ASSOCIATED WITH MID-LEVEL MOISTURE
THAT HAD RESULTED FROM SUBLIMATION OF SNOWPACK. THE FIRST TRUE PUSH
OF MONSOON MOISTURE ARRIVED ON JULY 4TH AND LASTED THROUGH THE 15TH
BEFORE GETTING PUSHED OUT. ADDITIONAL PERIODS WHERE MONSOON MOISTURE
SPARKED SHOWER AND THUNDERSTORM ACTIVITY WAS FROM THE 17TH THROUGH
THE 20TH AND THE 25TH THROUGH THE 30TH.

THE BENEFICIAL RAINS THAT DID FALL WERE NOT ENOUGH TO RELIEVE THE
AREA COMPLETELY FROM THE DROUGHT BUT HELPED TO KEEP CONDITIONS FROM
BECOMING WORSE IN MANY AREAS. ADDITIONAL RELIEF IS POSSIBLE THROUGH
THE END OF THE MONSOON SEASON IN SEPTEMBER FROM AREAS THAT RECEIVE
BENEFICIAL PRECIPITATION FROM SHOWERS AND THUNDERSTORMS.

                  OCT-JUL
ARIZONA             PCPN        NORMAL     PER

BEAVER DAM          2.31         6.17      37
PIPE SPRING NM      4.88         8.61      57
KINGMAN             2.92         8.09      36
WIKIEUP             1.87         7.50      25

CALIFORNIA

BISHOP              2.63         4.86      54
DEATH VALLEY NP     0.92         2.02      46
BARSTOW-DAGGETT     2.55         3.59      71
NEEDLES             2.77         3.71      75
JOSHUA TREE         1.80         4.22      43

NEVADA

LAS VEGAS           1.94         3.61      54
MT CHARLESTON      14.13        20.97      67
PAHRUMP             2.39         4.35      55
MESQUITE            2.33         6.94      34
CALIENTE            6.07         7.74      78
PIOCHE              5.55        11.04      50
DYER                2.83         4.40      64

PCPN   - OCTOBER 2013 - JULY 2014
NORMAL - WATER YEAR NORMAL
PER    - PERCENT OF NORMAL

PRECIPITATION/TEMPERATURE OUTLOOK...

THE LATEST SEASONAL FORECAST (SEPTEMBER THROUGH NOVEMBER)...ISSUED
BY THE CLIMATE PREDICTION CENTER...THERE IS HIGHER CONFIDENCE FOR
ABOVE NORMAL TEMPERATURES ACROSS CALIFORNIA AND WESTERN NEVADA WITH
SLIGHTLY LOWER CONFIDENCE IN ABOVE NORMAL TEMPERATURES OVER EASTERN
NEVADA AND NORTHWEST ARIZONA. THERE IS SLIGHTLY HIGH CONFIDENCE IN
ABOVE NORMAL PRECIPITATION IN SOUTHERN NEVADA AND SOUTHEASTERN
CALIFORNIA WITH A HIGHER CONFIDENCE IN NORTHWEST ARIZONA.

HYDROLOGIC SUMMARY AND OUTLOOK...

AT THE END OF JULY, LAKE POWELL`S ELEVATION WAS 3608.5 FEET OR 52
PERCENT CAPACITY. MEANWHILE, LAKE MEAD IS PROJECTED TO DROP TO
HISTORIC LOWS SINCE INITIALLY FILLING IN THE LATE 1930`S. THE LAKE
MEAD ELEVATION IS PROJECTED TO DROP TO AROUND 1080 FEET AND REMAIN
AROUND THAT ELEVATION THROUGH NOVEMBER 2014. THE BUREAU OF
RECLAMATION HAS PROJECTED TO RELEASE 9.0 MAF FROM LAKE POWELL IN
2015...UP FROM THE 7.48 MAF PROJECTED FOR THE 2014 WATER YEAR.

DATA FOR RESERVOIRS ACROSS THE REGION (AS OF 8/18/2014)

RESERVOIR                      PERCENT FULL

LAKE MEAD                           38
LAKE MOHAVE                         97
LAKE HAVASU                         96

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, AUGUST 21, 2014. 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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