weather.gov     
National Weather Service

Drought Information Statement
NWS Homepage
This page is being discontinued on March 12, 2014.
The same data is available at this site. Please update your bookmarks.
Thank you, and we apologize for the inconvenience.
Please send an email to SR-SRH.Webmaster@noaa.gov with any concerns.


Current Version
Previous Version:    01  
[Printable]
070
AXUS76 KPQR 122207
DGTPQR
ORZ001>008-010>016-021>031-041-044-049-050-061>064-502-503-505>511-
180000-

DROUGHT INFORMATION STATEMENT
NATIONAL WEATHER SERVICE PORTLAND OREGON
300 PM PDT FRI SEP 12 2014

...UPDATE ON DROUGHT CONDITIONS AND IMPACTS FOR OREGON AS OF
SEPTEMBER 12TH 2014...

SEVERE TO EXTREME DROUGHT PERSISTS ACROSS MOST OF THE SOUTHERN HALF
OF OREGON...WITH THE MOST SEVERE CONDITIONS IN SOUTH-CENTRAL AND
SOUTHEASTERN OREGON. MODERATE DROUGHT CONTINUES FOR MUCH OF THE
NORTHERN HALF OF THE STATE...ESPECIALLY NORTH-CENTRAL OREGON. THE
MAIN DRIVER FOR CONTINUING DROUGHT CONDITIONS IS THE MUCH-BELOW-
NORMAL SNOWPACK FOR THE 2013/2014 WINTER AND SPRING. PEAK SNOWPACK
IN MARCH FOR AREAS OF SOUTH OREGON CASCADES AND SOUTHEAST MOUNTAINS
WAS ONLY 15 TO 60 PERCENT OF AVERAGE. SUMMER TEMPERATURES HAVE BEEN
WELL-ABOVE NORMAL...INCREASING STRESS ON TREES...PLANTS...AND
ECOSYSTEMS IN MUCH OF THE STATE AND INCREASING FIRE SUSCEPTIBILITY.
VISIT DROUGHT.GOV FOR MORE DETAILS ON DROUGHT CONDITIONS AND
CATEGORIES IN OREGON AND THE PACIFIC NORTHWEST.

DROUGHT CONDITIONS ARE EXPECTED TO PERSIST OR INTENSIFY THROUGH THE
AUTUMN...ESPECIALLY FOR THE SOUTHERN HALF OF THE STATE.

STATE OF OREGON DROUGHT DECLARATIONS HAVE BEEN ISSUED FOR THE
FOLLOWING COUNTIES: BAKER...CROOK...GRANT...HARNEY...JACKSON...
JOSEPHINE...KLAMATH...LAKE...MALHEUR...AND WHEELER. VISIT
WWW.OREGON.GOV/OWRD/PAGES/WR/DROUGHT.ASPX FOR MORE INFORMATION ON
STATE DECLARATIONS AND AVAILABLE ASSISTANCE FOR THOSE IN DROUGHT-
AFFECTED AREAS.

US DEPT OF AGRICULTURE DROUGHT DISASTER DECLARATIONS ARE IN EFFECT
FOR THE FOLLOWING COUNTIES AS PRIMARY DESIGNATIONS: BAKER...COOS...
CROOK...CURRY...DESCHUTES...DOUGLAS...GRANT...HARNEY...JACKSON...
JOSEPHINE...KLAMATH...LAKE...LANE AND MALHEUR. DESIGNATIONS FOR
CONTIGUOUS COUNTIES INCLUDE: BENTON...JEFFERSON...LINCOLN...LINN...
MORROW...UMATILLA...UNION...WALLOWA AND WHEELER. VISIT USDA.GOV FOR
MORE INFORMATION ON DISASTER DECLARATIONS AND ASSISTANCE PROGRAMS
FOR DROUGHT-IMPACTED AREAS.

THE MAJORITY OF DROUGHT IMPACTS ARE IN THE SOUTHERN HALF OF OREGON.
SEVERAL RESERVOIRS THAT SUPPORT IRRIGATED AGRICULTURE IN SOUTH-
CENTRAL AND SOUTHEAST OREGON HAVE LITTLE OR NO WATER LEFT TO RELEASE
TO DOWNSTREAM IRRIGATORS. THESE INCLUDE GERBER...WARM SPRINGS...
OWYHEE...BEULAH...AND BULLY CREEK. FORESTS AND RANGELAND HAVE SEEN
INCREASED FIRE SUSCEPTIBILITY DUE TO LONG-TERM DRY CONDITIONS.

DROUGHT IMPACTS WILL EVOLVE AND CHANGE THROUGH THE FALL AND WILL
LIKELY INCLUDE THE FOLLOWING: REDUCED WATER ALLOCATIONS FOR
IRRIGATORS IN SOME BASINS...REDUCED WATER SUPPLY FOR COMMUNITIES
ESPECIALLY WHERE DEPENDENT ON NATURAL STREAMFLOW ONLY...LOWER
STREAMFLOW AFFECTING FISH AND WILDLIFE HABITAT...REDUCED ACREAGE AND
OVERALL PRODUCTION FOR SOME FIELD CROPS...POOR RANGE CONDITIONS AND
WATER AVAILABILITY FOR CATTLE AND OTHER RANGE ANIMALS...AND DRIER-
THAN-NORMAL FOREST CONDITIONS.

NOTE...THIS PRODUCT WILL BE ISSUED ON AT LEAST A MONTHLY BASIS IN
2014 AS LONG AS WIDESPREAD DROUGHT CONDITIONS PERSIST IN OREGON. THE
NEXT UPDATE WILL BE ISSUED BY OCTOBER 15TH.

===================================================================
...OBSERVED PRECIPITATION AND TEMPERATURES...

WATER-YEAR PRECIPITATION /OCTOBER 2013 - AUGUST 2014/ IS 50 TO 75
PERCENT OF NORMAL FOR SOUTHERN OREGON AND 70 TO 100 PERCENT OF
NORMAL FOR NORTHERN OREGON. THE FOLLOWING TABLE SHOWS AUGUST MONTHLY
TOTALS...WATER YEAR TOTALS...AND PERCENT OF AVERAGE THROUGH THE END
OF AUGUST FOR SEVERAL LOCATIONS IN OREGON.

LOCATION   AUGUST (INCHES)  WATER YEAR OCT-AUG (IN)   PERCENT OF AVE
========   ===============  =======================   ==============
ASTORIA        0.70               54.47                     84
NORTH BEND     0.02               34.02 (SEP-AUG)           52
PORTLAND       0.01               29.97                     87
EUGENE         0.19               27.00                     61
MEDFORD        0.63               15.83 (SEP-AUG)           86
REDMOND        0.96                5.71                     67
KLAMATH FALLS  0.92                8.25 (SEP-AUG)           55
PENDLETON      0.61               10.11                     84
ONTARIO        0.53                7.05                     73
BURNS          0.21                6.96                     66

THE HOT SUMMER CONTINUES...AS AUGUST TEMPERATURES AROUND THE STATE
WERE 1 TO 4 DEGREES ABOVE NORMAL...NOT AS EXTREME AS JULY
TEMPERATURES BUT STILL HOT.

VISIT WWW.NWRFC.NOAA.GOV/WATER_SUPPLY/WY_SUMMARY/WY_SUMMARY.PHP FOR
MORE DETAILS ON OBSERVED PRECIPITATION AND TEMPERATURES IN OREGON.

===================================================================

...PRECIPITATION AND TEMPERATURE OUTLOOK SEPTEMBER THROUGH
NOVEMBER...

CONTINUED ABOVE-NORMAL TEMPERATURES ARE EXPECTED THROUGH THE FALL.
THE CLIMATE PREDICTION CENTER OUTLOOK FOR THE REST OF SEPTEMBER
LEANS TOWARD ABOVE-NORMAL TEMPERATURES. THE THREE-MONTH TEMPERATURE
OUTLOOK FOR SEPTEMBER THROUGH NOVEMBER ALSO CALLS FOR AN ENHANCED
LIKELIHOOD OF ABOVE-NORMAL TEMPERATURES...ESPECIALLY FOR EASTERN
OREGON.

THE OUTLOOK FOR PRECIPITATION LEANS SOMEWHAT TOWARD BELOW-NORMAL
TOTALS SEPTEMBER THROUGH NOVEMBER...ESPECIALLY FOR THE NORTHERN
PART OF THE STATE.

VISIT WWW.CPC.NCEP.NOAA.GOV FOR MORE INFORMATION ON SEASONAL
OUTLOOKS.

===================================================================
...RESERVOIR CONDITIONS...

SEVERAL RESERVOIRS IN SOUTH-CENTRAL AND SOUTHEAST OREGON HAVE LITTLE
OR NO REMAINING STORAGE AS OF EARLY SEPTEMBER. RESERVOIRS REPORTING
0 PERCENT STORAGE INCLUDE OWYHEE...WARM SPRINGS...AND THIEF VALLEY.
RESERVOIRS REPORTING 10 PERCENT OR LESS INCLUDE GERBER...FOURMILE
LAKE... BEULAH...AND BULLY CREEK. LOW RESERVOIR STORAGE TRANSLATES
TO LITTLE OR NO WATER FOR DOWNSTREAM IRRIGATORS.

VISIT WWW.WCC.NRCS.USDA.GOV/CGIBIN/RESV_RPT.PL?STATE=OREGON FOR MORE
INFORMATION ON RESERVOIR CONDITIONS.

===================================================================
...HYDROLOGIC SUMMARY...

STREAMFLOW IN AUGUST WAS GENERALLY BELOW-NORMAL THROUGHOUT THE
STATE...WITH MOST RIVERS LEVELING OFF AT SUMMER BASEFLOW.
STREAMFLOWS ARE NOTABLY LOW IN BASINS THAT DON`T HAVE RESERVOIR
STORAGE TO AUGMENT FLOWS DURING THE SUMMER.

VISIT WATERWATCH.USGS.GOV FOR DETAILS ABOUT INDIVIDUAL BASINS AND
RIVER GAGES.

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

NATIONAL WEATHER SERVICE - PORTLAND
PHONE: 503-261-9246
EMAIL: W-PQR.WEBMASTER@NOAA.GOV

$$




U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE