Drought Information Statement
Issued by NWS Las Vegas, NV

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AXUS75 KVEF 160326
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AZZ001>003-036-CAZ519>527-NVZ014-022-300700-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE LAS VEGAS NV
725 PM PST THU JAN 15 2015

...DROUGHT CONDITIONS DETERIORATE IN THE EASTERN SLOPES OF THE
SOUTHERN SIERRA NEVADA BUT REMAIN THE SAME ELSEWHERE...

SYNOPSIS...ALTHOUGH JANUARY 2015 HAS NOT BEEN AS ACTIVE COMPARED TO
DECEMBER 2014 WITH RESPECT TO THE NUMBER OF STORM SYSTEMS,
BENEFICIAL PRECIPITATION FELL ACROSS MUCH OF THE AREA DURING THE
FIRST HALF OF THE MONTH. HOWEVER DESPITE THE RECENT RAIN AND SNOW,
THE DURATION AND SCOPE OF THE DROUGHT HAS MADE IT DIFFICULT FOR ANY
IMPROVEMENT TO BE MADE WITH IT ACROSS THE MOJAVE DESERT AND SOUTHERN
GREAT BASIN. WARMER THAN NORMAL CONDITIONS SO FAR THIS WINTER
CONTINUE TO CONTRIBUTE TO BELOW NORMAL SNOWPACK IN THE HIGHER
ELEVATIONS WHICH HAS ALSO IMPACTED ANY RECOVERY.

THE LATEST U.S. DROUGHT MONITOR DEPICTS THAT THE EASTERN SLOPES OF
THE SOUTHERN SIERRA NEVADA ARE NOW IN D4, OR EXCEPTIONAL DROUGHT.
EXTREME DROUGHT, OR D3 CONDITIONS, EXISTS ACROSS ALL OF ESMERALDA,
CENTRAL NYE, SMALL PORTION OF SOUTHWEST LINCOLN AND NORTHWEST CLARK
COUNTIES IN NEVADA AS WELL AS FAR NORTHWESTERN SAN BERNARDINO COUNTY
ALL BUT FAR SOUTHEAST INYO COUNTY IN CALIFORNIA. SEVERE DROUGHT
CONDITIONS, OR D2, EXIST ACROSS THE REMAINDER OF SOUTHWEST LINCOLN
COUNTY AND 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 90 DAY OUTLOOK FOR FEBRUARY, MARCH AND APRIL FROM THE CLIMATE
PREDICTION CENTER SHOWING A GREATER PROBABILITY OF ABOVE NORMAL
PRECIPITATION FOR SOUTHERN CALIFORNIA, SOUTHERN NEVADA AND NORTHWEST
ARIZONA. THERE IS A GREATER PROBABILITY OF ABOVE NORMAL TEMPERATURES
ACROSS THE AREA AS WELL.

SUMMARY OF IMPACTS...

RECREATION/TOURISM

HISTORIC LOW LAKE LEVELS IN THE EASTERN SLOPES OF INYO COUNTY
AFFECTED RESORTS THAT CATER TO FISHERMEN AND OTHERS THAT ENJOY
RECREATIONAL ACTIVITIES. BISHOP CREEK WAS FLOWING AT 30 TO 35 CFS
DURING THE END OF 2014 WITH ABOUT 12 CFS BEING CONTRIBUTED BY
RELEASES FROM LAKE SABRINA.

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.

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

NORMAL SIGNIFICANT WILDFIRE POTENTIAL IS EXPECTED FOR THE REST OF
JANUARY AS WELL AS FEBRUARY AND MARCH ACROSS THE AREA.

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.

WILDLIFE

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.

CLIMATE SUMMARY...

DECEMBER AND THE FIRST HALF OF JANUARY HAVE PRODUCED WETTER THAN
NORMAL CONDITIONS IN PORTIONS OF THE AREA, WHILE OTHERS HAVE SEEN
NEAR TO BELOW NORMAL PRECIPITATION. TEMPERATURES HAVE BEEN WARMER
THAN NORMAL.


ARIZONA            PCPN        NORMAL     PER

BEAVER DAM         1.29         2.38      54
PIPE SPRING NM     1.65         2.28      72
KINGMAN            2.23         2.55      87
WIKIEUP            1.22         2.90      42

CALIFORNIA

BISHOP             0.46         2.23      21
DEATH VALLEY NP    0.61         0.64      95
BARSTOW-DAGGETT    1.05         1.37      77
NEEDLES            0.49         1.49      33
JOSHUA TREE        0.52         1.51      34

NEVADA

LAS VEGAS          0.76         1.41      54
MT CHARLESTON      4.41         8.54      52
PAHRUMP            1.54         1.52     101
MESQUITE           1.42         2.32      61
CALIENTE           1.32         2.59      51
DYER               1.18         1.29      91

PCPN   - OCTOBER 1 - JANUARY 14 2015
NORMAL - WATER YEAR NORMAL (STARTS OCT 1)
PER    - PERCENT OF NORMAL

PRECIPITATION/TEMPERATURE OUTLOOK...

THE LATEST SEASONAL FORECAST (FEBRUARY THROUGH APRIL)...ISSUED BY
THE CLIMATE PREDICTION CENTER...THERE IS ABOVE AVERAGE CONFIDENCE
FOR ABOVE NORMAL PRECIPITATION AND ABOVE NORMAL TEMPERATURES ACROSS
SOUTHERN NEVADA, SOUTHEAST CALIFORNIA AND NORTHWEST ARIZONA.

HYDROLOGIC SUMMARY AND OUTLOOK...

FOR THE COLORADO RIVER BASIN, NEAR OR ABOVE AVERAGE APRIL-JULY
RUNOFF VOLUMES ARE EXPECTED IN THE GREEN RIVER BASIN ABOVE FLAMING
GORGE, COLORADO RIVER BASIN ABOVE CAMEO, AND MOST OF THE YAMPA,
WHITE AND GUNNISON RIVER BASINS. NEAR TO BELOW AVERAGE APRIL-JULY
RUNOFF VOLUMES ARE EXPECTED IN THE DUCHESNE RIVER BASIN, BEAR RIVER
BASIN AND PROVO RIVER BASIN HEADWATERS. BELOW TO MUCH BELOW AVERAGE
APRIL-JULY VOLUMES ARE EXPECTED ELSEWHERE. LOWEST RUNOFF VOLUMES ARE
EXPECTED IN THE SAN JUAN RIVER BASIN, VIRGIN RIVER BASIN, SOUTHERN
SEVIER AND LOWER ELEVATION SIX CREEK BASINS. JANUARY-MAY VOLUMES ARE
FORECAST NEAR TO BELOW MEDIAN AND TAKE INTO ACCOUNT THE LIKELIHOOD OF
A WEAK EL NINO EXISTING DURING THE WINTER AND SPRING MONTHS.

AS OF JANUARY 14 2015, LAKE MEAD`S ELEVATION WAS 1088.7 FEET OR
41 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 REQUIREMENT ARE
ESTIMATED AROUND 9.687 MAF. LAKE MEAD`S ELEVATION/STORAGE WILL PEAK
DURING JANUARY/FEBRUARY 2015 BEFORE DECLINING THROUGH THE SPRING AND
SUMMER. THE ELEVATION IS PROJECTED TO DROP BELOW 1080.0 FEET BY LATE
APRIL OR EARLY MAY. LAKE MEAD HAS NOT RECORDED LAKE LEVELS BELOW
1080 FEET SINCE THE RESERVOIR WAS BEING FILLED IN MAY 1937.

LAKE POWELL`S ELEVATION WAS 3595.6 OR 47 PERCENT CAPACITY.

DATA FOR RESERVOIRS ACROSS THE REGION (AS OF 1/14/2015)

RESERVOIR                      PERCENT FULL

LAKE MEAD                           41
LAKE MOHAVE                         89
LAKE HAVASU                         91

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, FEBRUARY 19, 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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