Drought Information Statement
Issued by NWS Boise, ID

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AXUS75 KBOI 252237 CCA
DGTBOI
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-ORC001-025-045-260600-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BOISE IDAHO
435 PM MDT TUE MAR 25 2014

...DROUGHT PERSISTS ACROSS SOUTHERN IDAHO AND SOUTHEAST OREGON...

SYNOPSIS...

ALTHOUGH FEBRUARY AND EARLY MARCH BROUGHT ABUNDANT PRECIPITATION TO
THE REGION...AND NEARLY DOUBLED THE MOUNTAIN SNOWPACK IN SOME
AREAS...LONG TERM PRECIPITATION DEFICITS...POOR RESERVOIR
STORAGE...AND LOW SNOWPACK CONTINUE TO FUEL DROUGHT CONDITIONS
ACROSS MUCH OF SOUTHERN IDAHO AND SOUTHEAST OREGON.

ACCORDING TO THE MARCH 18 U.S. DROUGHT MONITOR...AN AREA OF EXTREME
DROUGHT (D3 CLASSIFICATION) EXISTS ACROSS THE MAGIC VALLEY IN SOUTH
CENTRAL IDAHO. ELSEWHERE...MODERATE TO SEVERE DROUGHT (D1 AND D2
CLASSIFICATION) EXISTS ACROSS SOUTHEAST OREGON AND MOST OF
SOUTHWEST AND SOUTH CENTRAL IDAHO...INCLUDING THE LOWER TREASURE
VALLEY...THE WEISER BASIN...THE UPPER SNAKE PLAIN...AND THE WOOD
RIVER AND LOST RIVER BASINS.

SUMMARY OF IMPACTS...

SURFACE IRRIGATION SHORTAGES ARE VERY LIKELY TO OCCUR IN THE OWYHEE
BASIN...AND REMAIN LIKELY IN THE BIG AND LITTLE WOOD BASINS...BIG
AND LITTLE LOST BASINS...AND THE OAKLEY AND SALMON FALLS BASINS.

ACCORDING TO THE U.S. DEPARTMENT OF AGRICULTURE FARM SERVICE
AGENCY...ON MARCH 19...OWYHEE...TWIN FALLS...AND ELMORE COUNTIES
WERE UNDER A PRIMARY DROUGHT DESIGNATION. CANYON...ADA...BOISE...
CUSTER...BLAINE...CAMAS...GOODING...JEROME...CASSIA AND ONEIDA
COUNTIES IN IDAHO...AND HARNEY AND MALHEUR COUNTIES IN SOUTHEAST
OREGON WERE LISTED AS CONTIGUOUS DROUGHT COUNTIES.

SEE THE U.S. DEPARTMENT OF AGRICULTURE WEB SITE IN THE RELATED WEB
SITES SECTION BELOW FOR DETAILS.

CLIMATE SUMMARY...

BELOW IS A LIST OF PRECIPITATION DATA FOR SELECTED LOCATIONS IN
IDAHO AND SOUTHEAST OREGON SINCE THE BEGINNING OF THE 2014 WATER
YEAR.

       OCT 1, 2013-MAR 24,2014    NORMAL     DEPARTURE    LAST
        TOTAL PRECIP(INCHES)      VALUE     FROM NORMAL   YEAR

BOISE           7.47               6.94         0.53      4.85
MCCALL         13.07              11.25         1.82     19.13
TWIN FALLS      3.72               5.77        -2.05      4.72
POCATELLO       4.46               6.17        -1.71      5.96
IDAHO FALLS     2.71               4.58        -1.87      3.53
CHALLIS         2.37               3.60        -1.23      2.52
STANLEY        12.13               9.52         2.61     10.98
LEWISTON        4.60               5.85        -1.25      6.00
BAKER CITY, OR  3.66               4.52        -0.86      3.66
BURNS, OR       3.85               6.57        -2.72      4.82
ROME, OR        1.11               4.33        -3.22      2.39

FOR THE MONTH OF MARCH...AVERAGE TEMPERATURES WERE GENERALLY
2 TO 6 DEGREES(F) ABOVE AVERAGE ACROSS SOUTHERN IDAHO...AND 1 TO
4 DEGREES BELOW AVERAGE ACROSS NORTHERN IDAHO.

PRECIPITATION AND TEMPERATURE OUTLOOK...

THE OUTLOOK FOR APRIL IS FOR EQUAL CHANCES OF EITHER ABOVE NORMAL
...NORMAL...OR BELOW NORMAL TEMPERATURES FOR SOUTHWEST IDAHO AND
SOUTHEAST OREGON. PROBABILITIES SLIGHTLY FAVOR BELOW TEMPERATURES
FOR NORTHERN IDAHO. THE APRIL PRECIPITATION OUTLOOK IS FOR EQUAL
CHANCES OF EITHER ABOVE NORMAL...NORMAL...OR BELOW NORMAL
PRECIPITATION.

THE OUTLOOK FOR MAY THROUGH JULY FAVORS ABOVE NORMAL TEMPERATURES
FOR SOUTHWEST IDAHO AND SOUTHEAST OREGON...AND EQUAL CHANCES OF
EITHER ABOVE NORMAL...NORMAL...OR BELOW NORMAL TEMPERATURES
ELSEWHERE. THE PRECIPITATION OUTLOOK FOR MAY THROUGH JULY IS FOR
EQUAL CHANCES OF EITHER ABOVE NORMAL...NORMAL...OR BELOW NORMAL
PRECIPITATION.

HYDROLOGIC SUMMARY...

OVER THE 30 DAY PERIOD FROM FEBRUARY 22 THROUGH MARCH 23...
PRECIPITATION WAS WELL ABOVE AVERAGE ACROSS CENTRAL AND NORTHERN
IDAHO...AS WELL AS THE SNAKE RIVER HEADWATERS...AND EASTERN IDAHO
NEAR THE WYOMING BORDER. OTHERWISE...MUCH OF SOUTHERN IDAHO AND
SOUTHEAST OREGON HAD WELL BELOW NORMAL PRECIPITATION...INCLUDING
THE UPPER SNAKE PLAIN...LITTLE LOST AND BIRCH BASINS...LITTLE
WOOD BASIN AND MAGIC VALLEY...AND THE BRUNEAU AND OWYHEE BASINS.
PORTIONS OF OWYHEE COUNTY RECEIVED LESS THAN 50 PERCENT OF
AVERAGE PRECIPITATION DURING THE PERIOD. IN SOUTHEAST OREGON
...PRECIPITATION GENERALLY RANGED FROM 25 TO 70 PERCENT OF NORMAL
ACROSS MALHEUR AND HARNEY COUNTIES...AND FROM 100 TO 130 PERCENT
OF NORMAL ACROSS BAKER COUNTY.

MARCH 25 BASIN SNOWPACK WAS THE LOWEST ACROSS SOUTH CENTRAL AND
SOUTHWEST IDAHO. THE OWYHEE BASIN WAS ONLY AT 49 PERCENT OF NORMAL.
THE GOOSE CREEK...SALMON FALLS...BRUNEAU AND WEISER BASINS WERE
ONLY 65 TO 75 PERCENT OF NORMAL...AND THE BIG AND LITTLE WOOD
BASINS AND BIG LOST BASIN WERE ABOUT 75 TO 85 PERCENT OF NORMAL.
ELSEWHERE ACROSS IDAHO...SNOWPACK WAS NEAR NORMAL TO ABOVE NORMAL
...WITH A HIGH OF 144 PERCENT OF NORMAL FOR THE SNAKE BASIN ABOVE
PALISADES. IN SOUTHEAST OREGON...THE MALHEUR AND HARNEY BASINS
WERE ABOUT 40 TO 45 PERCENT OF NORMAL...WHILE SNOWPACK AT BAKER
COUNTY SNOTEL SITES VARIED CONSIDERABLY...RANGING FROM 50 TO 85
PERCENT OF NORMAL.

AS OF MARCH 24...THE 28 DAY AVERAGE STREAMFLOWS AT USGS GAGING
STATIONS WERE NORMAL TO BELOW NORMAL ACROSS SOUTHERN IDAHO...AND
ABOVE NORMAL ACROSS CENTRAL AND NORTHERN IDAHO. AVERAGE FLOWS ON
THE MAIN STEM SNAKE RIVER BETWEEN MILNER DAM AND SWAN FALLS DAM
WERE IN THE 10 PERCENTILE CATEGORY FOR LOW FLOWS. IN SOUTHEAST
OREGON...USGS STREAMGAGES INDICATED NORMAL TO BELOW NORMAL
STREAMFLOWS DURING THE PERIOD.

MARCH 1 2014 RESERVOIR DATA.

                  PERCENT OF CAPACITY     PERCENT OF AVG

IDAHO
AMERICAN FALLS            70                    90
ANDERSON RANCH            31                    56
ARROWROCK                 86                    125
BEAR LAKE                 48                    95
BLACKFOOT                 47                    90
BROWNLEE                  95                    119
CASCADE                   66                    100
COEUR D ALENE             29                    53
DEADWOOD                  53                    96
DWORSHAK                  68                    100
HENRYS LAKE               83                    94
ISLAND PARK               70                    90
LAKE LOWELL                8                    14
LITTLE WOOD               49                    84
LUCKY PEAK                51                    125
MACKAY                    64                    97
MAGIC                     26                    68
MANN CREEK                12                    25
MONTPELIER CREEK          35                    78
OAKLEY                    24                    72
PALISADES                 38                    58
PEND OREILLE              37                    72
PRIEST LAKE               51                    106
RIRIE                     58                    112
SALMON FALLS              11                    43


EASTERN OREGON
OWYHEE                    18                    32
WARM SPRINGS              14                    33
BEULAH                    37                    69
BULLY CREEK               35                    64
UNITY                     35                    61
PHILLIPS                  18                    38
THIEF VALLEY              80                    91

NEXT ISSUANCE DATE...

UPDATES TO THIS PRODUCT WILL BE MADE ON A MONTHLY BASIS. THE NEXT
ISSUANCE OF THE DROUGHT INFORMATION STATEMENT WILL BE IN LATE
APRIL.

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 (DROUGHT DECLARATIONS):
HTTP://WWW.IDWR.IDAHO.GOV

OREGON WATER RESOURCES DEPARTMENT:
HTTP://WWW.OREGON.GOV/OWRD

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

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

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

RESERVOIR INFORMATION:
NRCS
HTTP://WWW.WCC.NRCS.USDA.GOV/WSF/WSF-RESERVOIR.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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