Drought Information Statement
Issued by NWS Boise, ID

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IDC001-003-005-007-009-011-013-015-017-019-021-023-025-027-029-031-
033-035-037-039-041-043-045-047-049-051-053-055-057-059-061-063-
065-067-071-073-075-077-079-081-083-085-087-ORC001-025-045-090700-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BOISE IDAHO
409 PM MST FRI JAN 8 2016

...DROUGHT CONDITIONS IMPROVE ACROSS IDAHO AND SOUTHEAST OREGON...

SYNOPSIS...

AUTUMN AND EARLY WINTER PRECIPITATION HAS RESULTED IN IMPROVEMENT OF
THE OVERALL DROUGHT SITUATION ACROSS IDAHO AND SOUTHEAST OREGON.
A FAVORABLE STORMTRACK IN EARLY AND MID DECEMBER BROUGHT A SERIES OF
MOIST PACIFIC STORMS ACROSS THE REGION WHICH BOOSTED SNOWPACK TO WELL
ABOVE NORMAL FOR MUCH OF CENTRAL AND SOUTHERN IDAHO AND SOUTHEAST
OREGON. HOWEVER...LONG TERM DROUGHT IMPACTS PERSIST ACROSS MOST OF
REGION AND RESERVOIR STORAGE CONTINUES TO SUFFER IN AREAS. ACCORDING
TO THE U.S. DROUGHT MONITOR...AREAS OF MODERATE TO SEVERE DROUGHT
EXIST IN IDAHO ACROSS OWYHEE COUNTY EASTWARD ACROSS THE MAGIC VALLEY
INTO NORTHEAST IDAHO. ELSEWHERE IN IDAHO...MODERATE DROUGHT EXISTS
ACROSS WEST CENTRAL AND NORTH CENTRAL PORTIONS OF THE STATE AND THE
LOWER PANHANDLE REGION. SEVERE DROUGHT EXISTS ACROSS SOUTHEAST
OREGON. THE SEASONAL DROUGHT OUTLOOK INDICATES IMPROVEMENT OF
DROUGHT CONDITIONS ACROSS WEST CENTRAL AND SOUTHWEST IDAHO AS WELL
AS SOUTHEAST OREGON THROUGH THE END OF MARCH...WITH DROUGHT
PERSISTING ELSEWHERE IN IDAHO.

SUMMARY OF REPORTED IMPACTS...

POOR SNOWPACK DURING THE 2014-2015 WINTER COMBINED WITH EARLY
SNOWMELT RUNOFF AND A LACK OF SPRING PRECIPITATION RESULTED IN WATER
SHORTAGES FOR MANY USERS. MANY RESERVOIRS IN SOUTHERN IDAHO AND
SOUTHEAST OREGON CONTAINED WELL BELOW NORMAL STORAGE LAST YEAR AND
HAVE LITTLE CARRYOVER FOR 2016...ESPECIALLY ACROSS SOUTHEAST OREGON.

DRASTIC CUTS IN WATER ALLOTMENTS OCCURRED FOR IRRIGATORS IN SOME
BASINS. MANY EASTERN OREGON FARMERS HAD TO ADJUST CROPS TO
ACCOMMODATE DROUGHT AND SEVERAL HUNDRED ACRES OF LAND WERE LEFT
UNPLANTED DURING THE 2015 WATER YEAR. WATER SHORTAGES LED TO EARLY
IRRIGATION SHUTOFF IN PARTS OF IDAHO AND SOUTHEAST OREGON.

REMARKABLY LOW FLOWS OCCURRED ON MANY OF THE REGIONS STREAMS AND
RIVERS LAST SUMMER. WILDLAND FUELS WERE EXTREMELY DRY ACROSS MUCH OF
THE REGION RESULTING IN DESTRUCTIVE WILDFIRES...PARTICULARLY ACROSS
CENTRAL AND NORTHERN IDAHO AND EAST CENTRAL OREGON.

STATE DROUGHT DECLARATIONS WERE DECLARED FOR SEVERAL IDAHO COUNTIES
AND SOUTHEAST OREGON COUNTIES. DETAILS CAN BE FOUND VIA THE IDAHO
DEPARTMENT OF WATER RESOURCES AND OREGON WATER RESOURCES DEPARTMENT
IN THE RELATED WEBSITES SECTION BELOW.

U.S. DEPARTMENT OF AGRICULTURE DROUGHT DISASTER DECLARATIONS WERE
DECLARED FOR 34 IDAHO COUNTIES AND SOUTHEAST OREGON COUNTIES DURING
THE 2015 CROP YEAR. DETAILS ON DISASTER DECLARATIONS AND ASSISTANCE
PROGRAMS CAN BE FOUND VIA THE USDA IN THE RELATED WEBSITES SECTION
BELOW.

DROUGHT IMPACTS REPORTS CAN BE FOUND VIA THE U.S. DROUGHT PORTAL
IN THE RELATED WEBSITES SECTION.

CLIMATE SUMMARY...

WATER YEAR 2015 PRECIPITATION (OCTOBER 2014-SEPTEMBER 2015) WAS
GENERALLY 70 TO 100 PERCENT OF NORMAL ACROSS MOST OF IDAHO. AREAS
OF SOUTH CENTRAL IDAHO NEAR THE NEVADA BORDER AND SOUTHEAST IDAHO
FARED A LITTLE BETTER WITH 110 TO 130 PERCENT OF NORMAL. FOR
IDAHO...2015 WAS THE SECOND WARMEST YEAR ON RECORD BEHIND 1934.

FOR THE 2016 WATER YEAR TO DATE (OCTOBER 1 TO JANUARY 7)...NORMAL
OR ABOVE NORMAL PRECIPITATION HAS OCCURRED ACROSS SOUTHWEST AND
CENTRAL IDAHO AND MOST OF THE PANHANDLE REGION...WHILE SOUTHEAST
IDAHO HAD A PATCHWORK OF NORMAL TO BELOW NORMAL PRECIPITATION.
PRECIPITATION ACROSS SOUTHEAST OREGON WAS NORMAL TO WELL ABOVE
NORMAL...EXCEPT FOR FAR WESTERN PORTIONS OF BAKER AND HARNEY COUNTY
WHERE PRECIPITATION HAS BEEN A LITTLE BELOW NORMAL. AVERAGE
TEMPERATURES HAVE BEEN NORMAL TO 4 DEGREES(F) ABOVE NORMAL ACROSS
THE REGION.

BELOW IS A LIST OF PRECIPITATION DATA FOR SELECTED LOCATIONS IN
IDAHO AND SOUTHEAST OREGON FOR THE 2016 WATER YEAR.

        OCT 1 2015-JAN 7 2016     NORMAL     DEPARTURE    LAST
         TOTAL PRECIP(INCHES)     VALUE     FROM NORMAL   YEAR

BOISE            4.38               3.97        0.41       6.04
MCCALL          10.71               6.58        4.13       9.43
TWIN FALLS       4.38               3.58        0.80       3.00
POCATELLO        3.66               3.48        0.18       2.40
IDAHO FALLS      2.42               2.76       -0.34       1.46
CHALLIS          2.62               2.07        0.55       1.81
STANLEY          7.75               5.24        2.51       7.06
LEWISTON         3.29               3.36       -0.07       4.41
BAKER CITY, OR   2.54               2.72       -0.18       2.36
BURNS, OR        5.10               3.81        1.29       4.50
ROME, OR         4.46               2.36        2.10       2.00

PRECIPITATION AND TEMPERATURE OUTLOOK...

WITH THE INFLUENCE OF A STRONG EL NINO IN THE TROPICAL PACIFIC AND
RECENT TRENDS...THE THREE MONTH OUTLOOK FROM THE CLIMATE PREDICTION
CENTER FOR JANUARY THROUGH MARCH FAVORS ABOVE NORMAL TEMPERATURES
AND BELOW NORMAL PRECIPITATION ACROSS THE REGION. PROBABILITIES
FOR WARMER AND DRIER THAN NORMAL CONDITIONS ARE HIGHEST ACROSS
NORTHERN IDAHO.

HYDROLOGIC SUMMARY...

COOLER AND WETTER AUTUMN WEATHER BROUGHT IMPROVED STREAMFLOWS TO
MOST OF THE REGION ALONG WITH IMPROVED SOIL MOISTURE. AS OF JANUARY
7 2016...THE 28 DAY AVERAGE STREAMFLOWS AT USGS GAGING STATIONS
WERE NEAR NORMAL ACROSS NORTHERN...CENTRAL AND SOUTHWEST IDAHO...AND
SOUTHEAST OREGON. FOR SOUTH CENTRAL AND EASTERN IDAHO...STREAMFLOWS
WERE A MIX OF NORMAL AND BELOW NORMAL.

SOUTHSIDE SNAKE RIVER BASINS IN IDAHO AND SOUTHEAST OREGON BASINS
WERE CARRYING THE HIGHEST SNOWPACK PERCENTAGES AS OF JANUARY 7...
RANGING FROM 140 TO 170 PERCENT OF NORMAL. MOST OF THE CENTRAL
MOUNTAIN BASINS IN IDAHO WERE AROUND 110 TO 120 PERCENT OF NORMAL...
WHILE PERCENTAGES FALL OFF TO NEAR 85 PERCENT OF NORMAL ACROSS
NORTH CENTRAL IDAHO AND THE PANHANDLE REGION. THE SNAKE RIVER
HEADWATERS AND BEAR RIVER REGIONS ARE NEAR 90 PERCENT OF NORMAL.

MAJOR RESERVOIR SYSTEMS ACROSS IDAHO WERE GENERALLY HOLDING NEAR
AVERAGE STORAGE...BUT MANY OF THE SMALLER RESERVOIRS IN SOUTH
CENTRAL AND SOUTHWEST IDAHO WERE HOLDING BELOW AVERAGE. OVERALL
RESERVOIR STORAGE IN SOUTHEAST OREGON IS WELL BELOW NORMAL.

JANUARY 1 2016 RESERVOIR DATA

                                  PERCENT       PERCENT
                                  CAPACITY      AVERAGE
IDAHO
PANHANDLE REGION                     65          100
(HUNGRY HORSE...FLATHEAD LAKE
...NOXON RAPIDS...LAKE PEND
ORELLE... PREIST LAKE...LAKE
COEUR D ALENE)

DWORSHAK                             66           95

WEST CENTRAL BASINS                  50           90
(ANDERSON RANCH...ARROWROCK
...LUCKY PEAK...LAKE LOWELL...
DEADWOOD...CASCADE...MANN CREEK)

WOOD AND LOST BASINS                 23           62
(MACKAY...LITTLE WOOD...MAGIC)

UPPER SNAKE RIVER BASIN              51           88
(JACKSON...PALISADES...HENRYS...
GRASSY...ISLAND PARK...RIRIE
...BLACKFOOT...AMERICAN FALLS)

SOUTHSIDE SNAKE RIVER BASINS         50           81
(OAKLEY...SALMON FALLS...WILD
HORSE...LAKE OWYHEE...BROWNLEE)

BEAR RIVER BASIN                     35           79
(BEAR LAKE...MONTPELIER)

EASTERN OREGON
OWYHEE AND MALHEUR BASINS            10           23
(BEULAH...BULLY CREEK...LAKE
OWYHEE...WARM SPRINGS)

POWDER AND BURNT RIVER BASINS        14           32
(PHILLIPS LAKE...THIEF VALLEY
...UNITY)

NEXT ISSUANCE DATE...

UPDATES TO THIS PRODUCT ARE GENERALLY MADE ON A MONTHLY BASIS. THE
NEXT ISSUANCE OF THE DROUGHT INFORMATION STATEMENT WILL OCCUR IN
FEBRUARY.

RELATED WEB SITES...

U.S. DROUGHT PORTAL:
HTTP://WWW.DROUGHT.GOV

NATIONAL DROUGHT MITIGATION CENTER:
HTTP://DROUGHT.UNL.EDU

STREAM FLOWS:
AHPS HTTP://WATER.WEATHER.GOV/AHPS
USGS HTTP://WATERWATCH.USGS.GOV

NWS WATER SUPPLY FORECASTS:
HTTP://WWW.NWRFC.NOAA.GOV
HTTP://WWW.CBRFC.NOAA.GOV

NRCS WATER SUPPLY FORECASTS:
HTTP://WWW.WCC.NRCS.USDA.GOV/WSF/WSF.HTML

IDAHO DEPARTMENT OF WATER RESOURCES:
HTTP://WWW.IDWR.IDAHO.GOV

OREGON WATER RESOURCES DEPARTMENT (DROUGHT INFORMATION):
HTTP://WWW.OREGON.GOV/OWRD/PAGES/WR/DROUGHT.ASPX

LONG TERM WEATHER AND CLIMATE OUTLOOKS:
HTTP://WWW.CPC.NCEP.NOAA.GOV

WESTERN REGION CLIMATE CENTER (CLIMATE ANOMALY MAPS):
HTTP://WWW.WRCC.DRI.EDU/MONITORING-MAPS/

NATIONAL INTERAGENCY COORDINATION CENTER
(FIRE DANGER AND OUTLOOKS):  HTTP://WWW.NIFC.GOV/NICC

RESERVOIR INFORMATION:
NRCS HTTP://WWW.WCC.NRCS.USDA.GOV/BASIN.HTML
BUREAU OF RECLAMATION HTTP://WWW.USBR.GOV/PN/HYDROMET/SELECT.HTML

UNITED STATES DEPARTMENT OF AGRICULTURE:
DISASTER ASSISTANCE
HTTP://WWW.USDA.GOV/WPS/PORTAL/USDA/USDAHOME

ACKNOWLEDGEMENTS...
THE DROUGHT MONITOR IS A MULTI-AGENCY EFFORT INVOLVING NOAA/S
NATIONAL WEATHER SERVICE AND NATIONAL CLIMATIC DATA CENTER...THE
US DEPARTMENT OF AGRICULTURE...STATE AND REGIONAL CENTERS...
CLIMATOLOGISTS...AND THE NATIONAL DROUGHT MITIGATION CENTER.
INFORMATION FOR THIS STATEMENT HAS BEEN GATHERED FROM THE NWS AND
FFA OBSERVATION SITES...STATE AGENCIES...USDA...NRCS...USACE AND
USGS.

QUESTIONS OR COMMENTS...
IF YOU HAVE QUESTIONS OR COMMENTS ABOUT THIS DROUGHT INFORMATION
STATEMENT PLEASE CONTACT...

NATIONAL WEATHER SERVICE
3833 SOUTH DEVELOPMENT AVENUE
BOISE ID 83705-5354
PHONE: 208-334-9860
EMAIL: W-BOI.WEBMASTER@NOAA.GOV

$$



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