Drought Information Statement
Issued by NWS Boise, ID
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000 AXUS75 KBOI 222106 DGTBOI AXUS75 KBOI DDHHMM 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-ORC001-025-045-230600- DROUGHT INFORMATION STATEMENT NATIONAL WEATHER SERVICE BOISE IDAHO 205 PM MST THU JAN 22 2015 ...DROUGHT PERSISTS ACROSS MUCH OF SOUTHERN IDAHO AND SOUTHEAST OREGON... SYNOPSIS... ONLY MINOR CHANGE HAS OCCURRED TO THE DROUGHT STATUS ACROSS IDAHO AND SOUTHEAST OREGON SINCE THE BEGINNING OF THE 2015 WATER YEAR. ACCORDING TO THE JANUARY 20 U.S. DROUGHT MONITOR...IN SOUTHERN IDAHO...MODERATE TO SEVERE DROUGHT (D1 AND D2 CLASSIFICATION) EXISTS ACROSS MUCH OF THE UPPER SNAKE PLAIN (MAINLY NORTH OF THE SNAKE RIVER)...THE WOOD RIVER AND LOST RIVER BASINS...ACROSS SOUTH CENTRAL IDAHO AND OWYHEE COUNTY...EXTENDING NORTH NEAR THE OREGON BORDER ACROSS WESTERN WASHINGTON AND WESTERN ADAMS COUNTIES. EXTREME DROUGHT (D3 CLASSIFICATION) EXISTS ACROSS PART OF THE MAGIC VALLEY IN SOUTH CENTRAL IDAHO...AND ACROSS A PORTION OF WESTERN OWYHEE COUNTY AND FAR SOUTHWEST WASHINGTON COUNTY. IN SOUTHEAST OREGON... EXTREME DROUGHT (D3 CLASSIFICATION) EXTENDS ACROSS HARNEY AND MALHEUR COUNTIES AND SOUTHERN BAKER COUNTY...WITH MODERATE TO SEVERE DROUGHT (D1 AND D2 CLASSIFICATION) ACROSS NORTHERN BAKER COUNTY. DROUGHT SEVERITY CLASSIFICATION POSSIBLE IMPACTS... (D1)MODERATE DROUGHT... SOME DAMAGE TO CROPS. SHORT TERM DRYNESS SLOWING PLANTING AND GROWTH OF CROPS AND PASTURES. SOME WATER SHORTAGES DEVELOPING OR IMMINENT. VOLUNTARY WATER USE RESTRICTIONS REQUESTED. (D2)SEVERE DROUGHT... CROPS OR PASTURE LOSSES LIKELY. WATER SHORTAGES COMMON. WATER RESTRICTIONS IMPOSED. (D3)EXTREME DROUGHT... MAJOR CROP OR PASTURE LOSSES. WIDESPREAD WATER SHORTAGES OR RESTRICTIONS. (D4)EXCEPTIONAL DROUGHT... EXCEPTIONAL AND WIDESPREAD CROP OR PASTURE LOSSES. SHORTAGES OF WATER IN RESERVOIRS...STREAMS AND WELLS CREATING WATER EMERGENCIES. THE SEASONAL DROUGHT OUTLOOK THROUGH MARCH 31 2015 INDICATES DROUGHT WILL CONTINUE FOR AREAS THAT ARE ALREADY EXPERIENCING DROUGHT...AND SOME EXPANSION OF DROUGHT CONDITIONS IS LIKELY IN NORTHERN IDAHO. SUMMARY OF REPORTED IMPACTS... POOR RESERVOIR STORAGE CARRYOVER...LOW STREAMFLOWS...AND LAGGING SNOWPACK IN SOME AREAS HAVE AFFECTED WATER SUPPLY EXPECTATIONS FOR THE COMING GROWING SEASON. THE NORTHWEST RIVER FORECAST CENTER INDICATES BETWEEN 50 TO 75 PERCENT OF NORMAL WATER VOLUMES DURING THE APRIL THROUGH SEPTEMBER PERIOD FOR SEVERAL LOCATIONS IN SOUTH CENTRAL AND SOUTHWEST IDAHO...AS WELL AS IN SOUTHEAST OREGON. THE OWYHEE PROJECT HAS BEEN ONE OF THE HARDEST HIT DUE TO CONSECUTIVE YEARS OF DROUGHT. THE WATER SUPPLY FORECAST FOR BELOW OWYHEE DAM IS FOR ONLY 47 PERCENT OF NORMAL FOR THE APRIL THROUGH SEPTEMBER PERIOD. ACCORDING TO THE U.S. DEPARTMENT OF AGRICULTURE FARM SERVICE AGENCY...IN 2014 THE FOLLOWING 24 COUNTIES IN IDAHO WERE DESIGNATED AS PRIMARY DROUGHT DISASTER COUNTIES...ADAMS...BINGHAM...BLAINE... BONNEVILLE...BUTTE...CAMAS...CANYON...CASSIA...CLARK...CUSTER... ELMORE...FREMONT...GOODING...JEFFERSON...JEROME...LEMHI...LINCOLN... MADISON...MINIDOKA...OWYHEE...PAYETTE...POWER...TWIN FALLS AND WASHINGTON. SOUTHEAST OREGON COUNTIES INCLUDE BAKER...HARNEY AND MALHEUR. ANY COUNTY DECLARED A PRIMARY OR CONTIGUOUS DISASTER COUNTY MAKES PRODUCERS IN THAT COUNTY ELIGIBLE FOR CERTAIN EMERGENCY AID. SEE THE U.S. DEPARTMENT OF AGRICULTURE WEB SITE IN THE RELATED WEB SITES SECTION BELOW FOR DETAILS. CLIMATE SUMMARY... AS OF JANUARY 21...PRECIPITATION FOR THE 2015 WATER YEAR WAS BELOW AVERAGE FOR MOST OF EASTERN IDAHO AND EXTREME SOUTH CENTRAL IDAHO...AS WELL AS ACROSS MOST OF MALHEUR COUNTY AND WESTERN BAKER COUNTY IN OREGON. ELSEWHERE...PRECIPITATION WAS NEAR OR ABOVE NORMAL. NRCS SNOTEL DATA FOR IDAHO INDICATED AROUND 70 PERCENT OF NORMAL SNOWPACK FOR THE SPOKANE BASIN AND PANHANDLE REGION...AND ABOUT 75 PERCENT OF NORMAL FOR THE WEISER AND OWYHEE BASINS. OTHERWISE...THE REST OF IDAHO SNOWPACK RANGED FROM ABOUT 85 TO 120 PERCENT OF NORMAL. ACROSS SOUTHEAST OREGON...SNOWPACK WAS 75 TO 85 PERCENT OF NORMAL. TEMPERATURES IN DECEMBER 2014 WERE SEVERAL DEGREES ABOVE NORMAL... ESPECIALLY ACROSS SOUTHERN IDAHO AND SOUTHEAST OREGON. IN JANUARY 2015...TEMPERATURES HAVE GENERALLY BEEN ABOVE NORMAL EXCEPT FOR SOME OF THE LOW ELEVATIONS WHERE INVERSIONS HAVE KEPT TEMPERATURES BELOW NORMAL. BELOW IS A LIST OF PRECIPITATION DATA FOR SELECTED LOCATIONS IN IDAHO AND SOUTHEAST OREGON FOR THE 2015 WATER YEAR. OCT 1 2014-JAN 21 2015 NORMAL DEPARTURE LAST TOTAL PRECIP(INCHES) VALUE FROM NORMAL YEAR BOISE 6.70 4.54 2.16 3.22 MCCALL 10.53 7.39 3.14 5.11 TWIN FALLS 3.73 3.99 -0.26 0.75 POCATELLO 2.76 3.93 -1.17 1.81 IDAHO FALLS 1.68 3.07 -1.39 1.49 CHALLIS 1.90 2.30 -0.40 0.88 STANLEY 8.10 5.94 2.16 4.81 LEWISTON 4.99 3.86 1.13 1.86 BAKER CITY, OR 2.59 3.09 -0.50 1.49 BURNS, OR 4.90 4.35 0.55 1.17 ROME, OR 2.15 2.65 -0.50 0.25 PRECIPITATION AND TEMPERATURE OUTLOOK... THE OUTLOOK FOR THE REMAINDER OF JANUARY FAVORS ABOVE NORMAL TEMPERATURES AND BELOW NORMAL PRECIPITATION ACROSS THE REGION. THE THREE MONTH OUTLOOK FOR FEBRUARY THROUGH APRIL FAVORS ABOVE NORMAL TEMPERATURES. MEANWHILE...PROBABILITIES FAVOR BELOW NORMAL PRECIPITATION FOR NORTHERN IDAHO...AND EQUAL CHANCES OF EITHER ABOVE NORMAL...NORMAL...OR BELOW NORMAL PRECIPITATION ELSEWHERE. HYDROLOGIC SUMMARY... MAJOR RESERVOIR SYSTEMS ACROSS IDAHO WERE GENERALLY HOLDING NEAR AVERAGE OR ABOVE AVERAGE STORAGE. A FEW OF THE SMALLER RESERVOIRS IN SOUTHERN IDAHO WERE ONLY HOLDING 40 TO 70 PERCENT OF AVERAGE. MAJOR RESERVOIRS IN SOUTHEAST OREGON WERE WELL BELOW AVERAGE. AS OF JANUARY 22...28 DAY AVERAGE STREAMFLOWS AT USGS GAGING STATIONS IN SOUTHERN IDAHO WERE BELOW NORMAL ALONG PORTIONS OF THE SNAKE RIVER...PORTNEUF RIVER...BIG WOOD AND BIG LOST RIVERS. IN SOUTHEAST OREGON...STREAMFLOWS WERE BELOW NORMAL ON THE MALHEUR RIVER. ELSEWHERE ACROSS IDAHO AND SOUTHEAST OREGON....STREAMFLOWS WERE GENERALLY NORMAL OR ABOVE NORMAL. JANUARY 1 2015 RESERVOIR DATA PERCENT OF CAPACITY PERCENT OF AVG IDAHO AMERICAN FALLS 59 105 ANDERSON RANCH 57 97 ARROWROCK 67 124 BEAR LAKE 42 93 BLACKFOOT 46 90 BROWNLEE 127 137 CASCADE 66 100 COEUR D ALENE 59 149 DEADWOOD 68 128 DWORSHAK 70 101 HENRYS LAKE 97 110 ISLAND PARK 75 109 LAKE LOWELL 56 102 LITTLE WOOD 32 69 LUCKY PEAK 37 108 MACKAY 54 110 MAGIC 18 53 MANN CREEK 17 75 MONTPELIER 59 140 OAKLEY 19 72 PALISADES 73 116 PEND OREILLE 33 74 PRIEST LAKE 48 102 RIRIE 54 121 SALMON FALLS 8 38 EASTERN OREGON OWYHEE 11 24 WARM SPRINGS 7 21 BEULAH 21 61 BULLY CREEK 11 31 UNITY 28 75 PHILLIPS 19 46 THIEF VALLEY 55 78 NEXT ISSUANCE DATE... UPDATES TO THIS PRODUCT WILL BE MADE ON A MONTHLY BASIS. THE NEXT ISSUANCE OF THE DROUGHT INFORMATION STATEMENT WILL OCCUR IN LATE 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/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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