Drought Information Statement
Issued by NWS Boise, ID

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AXUS75 KBOI 272314 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-
065-067-071-073-075-077-079-081-083-085-087-280700-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE BOISE IDAHO
415 PM MST THU FEB 27 2014

...ABUNDANT PRECIPITATION FELL IN FEBRUARY BUT DROUGHT CONDITIONS
REMAIN ACROSS MUCH OF SOUTHERN IDAHO...

SYNOPSIS...MOIST WESTERLY FLOW OFF THE PACIFIC BROUGHT LARGE
AMOUNTS OF PRECIPITATION TO IDAHO DURING THE PAST 30 DAYS...
BOOSTING MOUNTAIN SNOWPACK AND SIGNIFICANTLY IMPROVING THE WATER
SUPPLY OUTLOOK. FEBRUARY PRECIPITATION WAS 150 PERCENT OF
NORMAL OR GREATER FOR THE MAJORITY OF THE MOUNTAINS IN IDAHO.
HOWEVER...MUCH OF SOUTHERN IDAHO STILL NEEDS WELL ABOVE NORMAL
PRECIPITATION THE REST OF THE WINTER AND THIS SPRING TO HAVE
ADEQUATE WATER SUPPLY THROUGH THE GROWING SEASON.

ACCORDING TO THE FEBRUARY 25 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 SOUTHWEST AND SOUTH
CENTRAL IDAHO FROM THE NEVADA BORDER NORTH ACROSS THE TREASURE
VALLEY INTO THE WEISER BASIN....AND ACROSS MID AND UPPER PORTIONS
OF SNAKE PLAIN INTO PARTS OF THE WOOD AND LOST RIVER BASINS.

SUMMARY OF IMPACTS...

THE U.S. DEPARTMENT OF AGRICULTURE ON JANUARY 16...DESIGNATED
PORTIONS OF SOUTHERN IDAHO TO BE PRIMARY NATURAL DISASTER AREAS DUE
TO ONGOING DROUGHT CONDITIONS. SEE THE USDA WEB SITE IN THE
RELATED WEB SITES SECTION FOR DETAILS.

RESERVOIR STORAGE REMAINS POOR FOR OWYHEE RESERVOIR...AND SMALLER
RESERVOIR SYSTEMS IN SOUTH CENTRAL IDAHO. AVERAGE STREAMFLOW FOR
THE PAST 28 DAYS AT USGS GAGING STATIONS WAS MUCH BELOW NORMAL ON
THE MAIN STEM SNAKE RIVER IN SOUTH CENTRAL IDAHO.

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-FEB 26, 2014    NORMAL     DEPARTURE    LAST
        TOTAL PRECIP(INCHES)      VALUE     FROM NORMAL   YEAR

BOISE           5.80               5.80         0.00      4.46
MCCALL          8.50               9.53        -1.03     17.50
TWIN FALLS      2.67               4.99        -2.32      4.11
POCATELLO       2.97               5.10        -2.13      5.22
IDAHO FALLS     2.07               3.87        -1.80      3.09
CHALLIS         1.78               3.01        -1.23      2.39
STANLEY         10.03              8.02         2.01      9.41
LEWISTON        3.77               4.91        -1.14      5.57
BAKER CITY, OR  2.77               3.85        -1.08      3.31
BURNS, OR       3.05               5.63        -2.58      4.60
ROME, OR        0.92               3.55        -2.63      2.24

FOR THE MONTH OF FEBRUARY...AVERAGE TEMPERATURES HAVE BEEN 2 TO
6 DEGREES(F) ABOVE AVERAGE ACROSS SOUTHERN IDAHO...AND 2 TO 6
DEGREES BELOW AVERAGE FOR THE NORTH HALF OF IDAHO.

PRECIPITATION AND TEMPERATURE OUTLOOK...

THE OUTLOOK FOR MARCH IS FOR EQUAL CHANCES OF EITHER ABOVE NORMAL...
NORMAL...OR BELOW NORMAL TEMPERATURES. THE OUTLOOK FAVORS ABOVE
NORMAL PRECIPITATION IN MARCH FOR IDAHO...EXCEPT FOR THE PANHANDLE
WHERE EQUAL CHANCES OF EITHER ABOVE NORMAL...NORMAL...OR BELOW
NORMAL PRECIPITATION EXISTS.

THE OUTLOOK FOR APRIL THROUGH JUNE FAVORS ABOVE NORMAL TEMPERATURES
...AND EQUAL CHANCES OF EITHER ABOVE NORMAL...NORMAL...OR BELOW
NORMAL PRECIPITATION.

HYDROLOGIC SUMMARY...

OVER THE 30 DAY PERIOD FROM JANUARY 28 THROUGH FEBRUARY 26...
PRECIPITATION WAS AVERAGE TO WELL ABOVE AVERAGE ACROSS ALMOST ALL
OF IDAHO. THE MAJORITY OF THE MOUNTAINS RECEIVED BETTER THAN 150
PERCENT OF NORMAL. SOME OF THE CENTRAL MOUNTAINS...SOUTH CENTRAL
HIGHLANDS...CARIBOU HIGHLANDS...AND SNAKE RIVER HEADWATERS RECEIVED
200 TO 300 PERCENT OF NORMAL. THE EXCEPTIONS WERE THE UPPER SNAKE
PLAIN AND A POCKET OF THE PANHANDLE REGION...WHERE ABOUT 75 TO 85
PERCENT OF NORMAL PRECIPITATION OCCURRED.

FEBRUARY 27 BASIN SNOWPACK RANGED FROM A LOW OF 44 PERCENT OF NORMAL
IN THE OWYHEE BASIN...TO 136 PERCENT OF NORMAL IN THE SNAKE BASIN
ABOVE PALISADES RESERVOIR. OTHERWISE...SOUTH CENTRAL AND SOUTHWEST
IDAHO SNOWPACK RANGED FROM 60 TO 85 PERCENT OF NORMAL...WHILE THE
BEAR RIVER BASIN...UPPER SNAKE REGION...AND SALMON RIVER BASIN NORTH
ACROSS THE PANDANDLE RANGED FROM 90 TO 120 PERCENT OF NORMAL.

AS OF FEBRUARY 26...THE 28 DAY AVERAGE STREAMFLOW AT USGS STREAM
GAGES WAS NORMAL TO BELOW NORMAL ACROSS SOUTHERN IDAHO...AND
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.

FEBRUARY 1 2014 RESERVOIR DATA.

                  PERCENT OF CAPACITY     PERCENT OF AVG

IDAHO AMERICAN FALLS      56                    85
ANDERSON RANCH            30                    52
ARROWROCK                 84                    132
BEAR LAKE                 46                    93
BLACKFOOT                 44                    88
BROWNLEE                  91                    108
CASCADE                   63                    96
COEUR D ALENE             18                    45
DEADWOOD                  50                    92
DWORSHAK                  67                    100
HENRYS LAKE               81                    92
ISLAND PARK               64                    86
LAKE LOWELL               22                    39
LITTLE WOOD               40                    74
LUCKY PEAK                31                    89
MACKAY                    57                    98
MAGIC                     23                    63
MANN CREEK                 5                    17
MONTPELIER CREEK          30                    71
OAKLEY                    24                    80
PALISADES                 34                    53
PEND OREILLE              37                    76
PRIEST LAKE               51                    107
RIRIE                     54                    112
SALMON FALLS               8                    34


EASTERN OREGON
OWYHEE                    11                    23
WARM SPRINGS               6                    18
BEULAH                    26                    61
BULLY CREEK               20                    49
UNITY                     15                    32
PHILLIPS                  15                    34
THIEF VALLEY              18                    22

NEXT ISSUANCE DATE...

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

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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