Public Information Statement
Issued by NWS Pendleton, OR

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PUBLIC INFORMATION STATEMENT...CORRECTED
NATIONAL WEATHER SERVICE PENDLETON OREGON
700 PM PDT SAT MAR 28 2015

...WINTER 2014-2015 SEASON IN REVIEW FOR NORTHEAST OREGON AND
SOUTHEAST WASHINGTON FOR THE MONTHS OF DECEMBER, JANUARY AND
FEBRUARY...
...NUMEROUS RECORD WARM TEMPERATURES SET...

I.  TEMPERATURE AND PRECIPITATION OVERVIEW

METEOROLOGICAL WINTER (DEC-JAN-FEB) 2014-2015 WAS CHARACTERIZED BY A
SEMI-PERMANENT WEST COAST UPPER LEVEL RIDGE WHICH LEAD TO AVERAGE
TEMPERATURES BEING 3 TO 6 DEGREES ABOVE NORMAL ACROSS THE ENTIRE
REGION. PRECIPITATION TOTALS VARIED FROM SLIGHTLY ABOVE NORMAL IN
THE GRANDE RONDE VALLEY AND BLUE MOUNTAIN FOOTHILLS TO SLIGHTLY
BELOW NORMAL ELSEWHERE. SNOWFALL FOR THE THREE MONTH PERIOD WAS WELL
BELOW NORMAL FOR ALL CLIMATE SITES SURVEYED IN THIS REPORT, WITH
YAKIMA, WA RECORDING ITS LEAST SNOWY METEOROLOGICAL WINTER ON
RECORD. THE HIGHEST SNOW TOTALS FOR THE THREE MONTH PERIOD WERE
RECORDED AT REDMOND AND LA GRANDE, OR WHERE JUST OVER 5 INCHES
FELL. THE AVERAGE TEMPERATURE RANKED IN THE TOP TWELVE WARMEST FOR
THE PERIOD OF RECORD AT ALL SITES, WITH YAKIMA, WA AND REDMOND, OR
REPORTING THEIR SECOND WARMEST WINTER ON RECORD.


METEOROLOGICAL WINTER 2014-15 DATA AND DEPARTURE FROM NORMAL FOR
SELECTED CITIES:

            MAX   DEP   MIN   DEP   AVE   DEP  PCPN   DEP   SNOW  DEP
            TEMP  NORM  TEMP  NORM  TEMP  NORM  TOTL  NORM  TOTL  NORM
LA GRANDE   46.0  +6.4  28.3  +3.6  37.2  +5.0  5.29  +0.86  5.2  -3.7
PENDLETON   45.9  +3.2  31.5  +2.8  38.7  +3.0  4.35  +0.34  2.6  -10.4
REDMOND     47.7  +4.5  27.0  +4.5  37.3  +4.5  2.56  -0.22  5.3  -6.6
THE DALLES  48.2  +4.7  34.9  +3.9  41.5  +4.3  5.92  -1.08   M     M
KENNEWICK   46.7  +3.6  32.9  +3.2  39.8  +3.4  2.97  -0.02   M     M
WALLA WALLA 47.1  +5.3  34.2  +4.0  40.7  +4.7  6.50  -0.26  0.5  -8.9
YAKIMA      46.6  +6.4  29.5  +6.0  38.0  +6.1  2.61  -0.84  1.6  -15.7

RANK TABLE BELOW: #1 = WARMEST/WETTEST/LEAST SNOWY IN PERIOD OF RECORD
(LAST COLUMN SHOWS THE YEAR RECORDS BEGAN)

LA GRANDE   #1(T) N/A   #6    N/A   #3    N/A   #19   N/A   #12   1965
PENDLETON   #13   N/A   #15   N/A   #12   N/A   #36   N/A   #9    1927
REDMOND     #2    N/A   #7    N/A   #2    N/A   #34   N/A   #15(T)1947
THE DALLES  #4    N/A   #3    N/A   #3    N/A   #40   N/A    M    1947
KENNEWICK   #13*  N/A   #11   N/A   #11   N/A   #48   N/A    M    1893
WALLA WALLA #6    N/A   #7    N/A   #5    N/A   #26   N/A   #7    1948
YAKIMA      #2    N/A   #2    N/A   #2    N/A   #43   N/A   #1    1945

*THIS SITE HAD 2 YEARS IN WHICH AT LEAST ONE WHOLE MONTH OF DATA WAS
MISSING, THEREFORE THOSE YEARS WERE EXCLUDED FROM THE RANK.



II.  SELECTED RECORDS

DECEMBER:

THE FOLLOWING TWO TABLES LIST THE WEATHER STATION, DECEMBER RANK OF THE
1-DAY RECORD HIGH OR RECORD WARM LOW TEMPERATURE, THE RECORD
TEMPERATURE WITH DATE OF OCCURRENCE, AND THE CURRENT RECORD TEMPERATURE
FOR THE MONTH OF DECEMBER OR THE PREVIOUS RECORD IN CASES WHERE THE
2014 TEMPERATURE WAS THE NEW RECORD.

CITY                RANK      DEC 2014 MAX T          WARMEST DEC MAX T
WALLA WALLA, WA      #1       71 ON 12/10             68 ON 12/26/1980
HERMISTON, OR        #2       69 ON 12/11             70 ON 12/03/2007
DAYTON, WA           #5(TIED) 67 ON 12/11             69 ON 12/05/1939
LONG CREEK, OR       #5(TIED) 59 ON 12/11             65 ON 12/30/1980
MONUMENT, OR         #5(TIED) 65 ON 12/12             70 ON 12/10/1993
WHITMAN MISSION, WA  #5(TIED) 67 ON 12/10             70 ON 12/27/1980

THREE RECORD HIGH MINIMUM TEMPERATURES IN THE MONTH OF DECEMBER WERE
SET AT MEACHAM WEATHER STATION OF 44 ON THE 11TH, 43 ON THE 10TH AND 42
ON THE 9TH RANKED AS THE FIRST, SECOND AND FIFTH (TIED) WARMEST
DECEMBER MINIMUM TEMPERATURES ON RECORD, RESPECTIVELY. TWO RECORD
HIGH MINIMUM TEMPERATURES AT LA GRANDE WEATHER STATION OF 48 ON THE
11TH, AND 46 ON THE 10TH RANKED AS THE FIRST (TIED) AND THIRD (TIED)
WARMEST DECEMBER MINIMUM TEMPERATURES ON RECORD, RESPECTIVELY.

CITY                RANK      DEC 2014 WARM MIN T     WARMEST DEC MIN T
MEACHAM, OR          #1         44 ON 12/11           43 ON 12/10/2014
HERMISTON, OR        #1(TIED)   50 ON 12/21           50 ON 12/03/2007
LA GRANDE, OR        #1(TIED)   48 ON 12/11           48 ON 12/09/1981
LONG CREEK, OR       #1(TIED)   50 ON 12/10           50 ON 12/16/1980
HEPPNER, OR          #2         53 ON 12/10           57 ON 12/26/1980
CONDON, OR           #4         47 ON 12/10           52 ON 12/26/1980
PRINEVILLE, OR       #5(TIED)   46 ON 12/11           50 ON 12/04/2007


THE TABLE BELOW LISTS THE WEATHER STATION, RANKING, AVERAGE MONTHLY
AVERAGE TEMPERATURE FOR DECEMBER 2014, AND THE WARMEST MONTHLY AVERAGE
TEMPERATURE ON RECORD FOR THE MONTH OF DECEMBER FOR THAT STATION.

CITY                  RANK       DEC 2014 AVG T      WARMEST DEC AVG T
YAKIMA, WA            #3(TIED)   35.9                36.4 IN 1953/1966
LA GRANDE, OR         #3(TIED)   37.0                37.8 IN 1979
HERMISTON, OR         #4         37.9                38.8 IN 1999
MEACHAM, OR           #6         32.0                35.4 IN 1950


JANUARY:

QUITE A FEW LOCATIONS BROKE THEIR ALL-TIME JANUARY HIGH TEMPERATURE
RECORD, SOMETIMES SETTING MULTIPLE TOP 5 WARMEST JANUARY WARMEST
TEMPERATURES ON RECORD.  THREE LOCATIONS RECORDED THE FIRST TIME THAT
THE MARK OF 70 DEGREES OR BETTER WAS REACHED IN THE MONTH OF JANUARY.
THE FOLLOWING TABLE LISTS THE WEATHER STATION, JANUARY RANK OF THE 1-
DAY RECORD HIGH, THE RECORD TEMPERATURE WITH DATE OF OCCURRENCE, AND
THE CURRENT RECORD TEMPERATURE FOR THE MONTH OF JANUARY OR THE PREVIOUS
RECORD IN CASES WHERE THE 2015 TEMPERATURE WAS THE NEW RECORD.

CITY                RANK      JAN 2015 MAX T          WARMEST JAN MAX T
BEND, OR            #1        71 ON 1/25              67 ON 1/31/1971
CONDON, OR          #1        71 ON 1/27              69 ON 1/26/2015
ANTELOPE, OR        #1        70 ON 1/26 & 1/27       67 ON 1/25/2015
REDMOND, OR         #1        69 ON 1/25              67 ON 1/24/2015
MORO, OR            #1        68 ON 1/26              65 ON 1/01/1918
LONG CREEK, OR      #1        67 ON 1/26              62 ON 1/05/2012
GOLDENDALE, WA      #1        66 ON 1/26              64 ON 1/25/2015
SATUS PASS, WA      #1        62 ON 1/25              60 ON 1/31/1971
BICKLETON, WA       #2        61 ON 1/27              66 ON 1/31/1971
MEACHAM, OR         #2(T)     55 ON 1/26              57 ON 1/31/1971
JOHN DAY, OR        #3(T)     65 ON 1/27              69 ON 1/01/1904
SISTERS, OR         #3(T)     63 ON 1/26              65 ON 1/29/1971
HEPPNER, OR         #4(T)     68 ON 1/25              70 ON 1/20/1968
MADRAS, OR          #4(T)     66 ON 1/26              69 ON 1/31/1995
HERMISTON, OR       #5(T)     62 ON 1/24              67 ON 1/26/2003
LA GRANDE, OR       #7(T)     56 ON 1/27              61 ON 1/31/1971

THE FOLLOWING TABLE LISTS THE LOCATION, THE RANK, THE AVERAGE JANUARY
HIGH TEMPERATURE, AND THE RECORD WARMEST AVERAGE JANUARY HIGH
TEMPERATURE OR THE PREVIOUS RECORD IN CASES WHERE THE 2015 TEMPERATURE
WAS THE NEW RECORD.

CITY                RANK   JAN 2015 AVG MAX T   WARMEST JAN AVG MAX T
SATUS PASS, WA        #1         41.4                 40.9 IN 1983
BEND, OR              #2         47.9                 50.6 IN 1934
MEACHAM, OR           #3         41.3                 42.3 IN 2014
ANTELOPE, OR          #4         46.7                 50.5 IN 1934
REDMOND, OR           #5         48.1                 49.4 IN 1953
LONG CREEK, OR        #5(T)      44.6                 47.7 IN 1986

THE FOLLOWING TABLE LISTS THE LOCATION, THE RANK, THE AVERAGE JANUARY
TEMPERATURE, AND THE RECORD WARMEST JANUARY AVERAGE TEMPERATURE OR THE
PREVIOUS RECORD IN CASES WHERE THE 2015 TEMPERATURE WAS THE NEW RECORD.

CITY                  RANK       JAN 2015 AVG T       WARMEST JAN AVG T
SATUS PASS, WA        #1(T)      34.5                 34.5 IN 1983
PRINEVILLE, OR        #4         39.2                 41.1 IN 1902
MEACHAM, OR           #4         32.9                 36.7 IN 1953
REDMOND, OR           #6         37.5                 41.4 IN 1953
HERMISTON, OR         #6         36.1                 41.3 IN 2006
BEND, OR              #7         37.4                 40.9 IN 1934
LONG CREEK, OR        #8         34.6                 38.4 IN 1986

DUE TO THE STORM TRACK BEING DEVIATED WELL AWAY FROM THE PACIFIC
NORTHWEST FOR A MAJORITY OF THE MONTH OF JANUARY, AND THE DRY WEATHER
THAT THE MULTIPLE RIDGES BROUGHT TO THE AREA, A FEW RECORD LOWEST 10
RAINFALL TOTALS WERE SET THROUGHOUT THE REGION. THE FOLLOWING TABLE
LISTS THE LOCATION, THE RANK, THE JANUARY RAINFALL TOTAL, AND THE
RECORD LOWEST JANUARY RAINFALL TOTAL OR THE PREVIOUS RECORD IN CASES
WHERE THE 2015 TEMPERATURE WAS THE NEW RECORD.


CITY              RANK       JAN 2015 PRECIP      JAN LOWEST PRECIP
JOHN DAY, OR      #4         0.35 INCHES          0.10 INCHES IN 1961
HERMISTON, OR     #4         0.46 INCHES          T IN 1999
REDMOND, OR       #9         0.28 INCHES          0.13 INCHES IN 1984
HEPPNER, OR       #10        0.47 INCHES          0.18 INCHES IN 2013

IN ADDITION TO THE LACKLUSTER PRECIPITATION TOTALS THROUGHOUT THE
REGION, THE UNSEASONABLY WARM CONDITIONS ALSO CONTRIBUTED TO THE
FOLLOWING LOWEST 10 SNOWFALL TOTALS BEING RECORDED FOR THE MONTH OF
JANUARY:

CITY               RANK       JAN 2015 SNOWFALL    JAN LOWEST SNOWFALL
LA GRANDE, OR      #1(T)      NONE                 TIED 1988,1994,2010
MEACHAM, OR        #3         2.5 INCHES           T IN 2014
LONG CREEK, OR     #6         0.5 INCHES           0 IN 2003
BICKLETON, WA      #8(T)      T                    0 IN 2003
REDMOND, OR        #8(T)      0.2 INCHES           0 IN 2007
HEPPNER, OR        #10        T                    0 IN 2014

FEBRUARY:

THE FOLLOWING TABLE LISTS THE WEATHER STATION, FEBRUARY RANK OF THE 1-
DAY RECORD HIGH, THE RECORD TEMPERATURE WITH DATE OF OCCURRENCE, AND
THE CURRENT RECORD TEMPERATURE FOR THE MONTH OF FEBRUARY OR THE
PREVIOUS RECORD IN CASES WHERE THE 2015 TEMPERATURE WAS THE NEW RECORD.
A (T) INDICATES THAT THE TEMPERATURE TIED THE RECORD WITH OTHER DATES.

CITY                RANK      FEB 2015 MAX T          WARMEST FEB MAX T
LONG CREEK, OR      #1        51 ON 2/6               47 ON 2/8/1996
HERMISTON, OR       #1(T)     68 ON 2/7               68 ON 2/12/2011
MEACHAM, OR         #1(T)     61 ON 2/12              61 ON 2/28/1968
WALLA WALLA, WA     #3(T)     70 ON 2/6               75 ON 2/20/1995

THE FOLLOWING TABLE LISTS THE WEATHER STATION, FEBRUARY RANK OF THE 1-
DAY RECORD WARM LOW TEMPERATURE, THE RECORD TEMPERATURE WITH DATE OF
OCCURRENCE, AND THE CURRENT RECORD TEMPERATURE FOR THE MONTH OF
FEBRUARY OR THE PREVIOUS RECORD IN CASES WHERE THE 2015 TEMPERATURE WAS
THE NEW RECORD.  A (T) INDICATES THAT THE TEMPERATURE TIED THE RECORD
WITH OTHER DATES.

CITY                RANK      FEB 2015 MIN T          WARMEST FEB MIN T
LONG CREEK, OR      #1        51 ON 2/6               47 ON 2/8/1996
MEACHAM, OR         #1        46 ON 2/6               43 ON 2/4/1963
LA GRANDE, OR       #2(T)     46 ON 2/7               49 ON 2/27/1980
PRINEVILLE, OR      #3        50 ON 2/6               52 ON 2/19/1995
HERMISTON, OR       #3(T)     44 ON 2/26              52 ON 2/24/1999


THE FOLLOWING TABLE LISTS THE LOCATION, THE RANK, THE AVERAGE FEBRUARY
HIGH TEMPERATURE, AND THE RECORD WARMEST AVERAGE FEBRUARY HIGH
TEMPERATURE OR THE PREVIOUS RECORD IN CASES WHERE THE 2015 TEMPERATURE
WAS THE NEW RECORD.

CITY               RANK   FEB 2015 AVG MAX T   WARMEST FEB AVG MAX T
THE DALLES, OR        #1         55.6                 55.4 IN 1967
YAKIMA, WA            #1         55.5                 54.5 IN 1967
HERMISTON, OR         #1         54.6                 53.1 IN 1999
WALLA WALLA, WA       #1         54.5                 54.0 IN 1991
LA GRANDE, OR         #1         53.0                 49.6 IN 1995
MEACHAM, OR           #1         47.6                 46.2 IN 1963
ELLENSBURG, WA        #2         51.8                 53.5 IN 1934
CONDON, OR            #2         51.1                 51.3 IN 1963
MORO, OR              #2         51.0                 51.1 IN 1991
PENDLETON, OR         #3         53.6                 57.1 IN 1934
DAYTON, WA            #3         52.9                 55.6 IN 1958
REDMOND, OR           #3         35.1                 55.9 IN 1991


THE FOLLOWING TABLE LISTS THE LOCATION, THE RANK, THE AVERAGE
FEBRUARY LOW TEMPERATURE, AND THE RECORD WARMEST FEBRUARY LOW
TEMPERATURE OR THE PREVIOUS RECORD IN CASES WHERE THE 2015
TEMPERATURE WAS THE NEW RECORD.

CITY                  RANK   FEB 2015 AVG MIN T   WARMEST FEB AVG MIN T
HERMISTON, OR         #2         31.7                 32.6 IN 1999
BICKLETON, WA         #3         32.4                 32.8 IN 1958
THE DALLES, OR        #4         36.8                 38.3 IN 1958
WALLA WALLA, WA       #4         37.4                 39.1 IN 1958
CONDON, OR            #4         32.4                 33.4 IN 1958
YAKIMA, WA            #4         31.6                 33.4 IN 1958
LA GRANDE, OR         #4         30.9                 32.1 IN 1983
ELLENSBURG, WA        #4         29.5                 33.1 IN 1958
BEND, OR              #5         29.4                 30.9 IN 1958
LONG CREEK, OR        #5         29.4                 32.9 IN 1958

THE FOLLOWING TABLE LISTS THE LOCATION, THE RANK, THE AVERAGE FEBRUARY
TEMPERATURE, AND THE RECORD WARMEST FEBRUARY AVERAGE TEMPERATURE OR THE
PREVIOUS RECORD IN CASES WHERE THE 2015 TEMPERATURE WAS THE NEW RECORD.

CITY                  RANK     FEB 2015 AVG T       WARMEST FEB AVG T
THE DALLES, OR        #1         46.2                 45.9 IN 1958
YAKIMA, WA            #1         43.5                 42.7 IN 1958
HERMISTON, OR         #1         43.1                 42.9 IN 1999
LA GRANDE, OR         #1         42.0                 39.6 IN 1983
WALLA WALLA, WA       #2         46.0                 46.3 IN 1958
CONDON, OR            #2         41.7                 41.8 IN 1958
GOLDENDALE, WA        #2         41.4                 43.3 IN 1958
MEACHAM, OR           #2         37.7                 39.1 IN 1963
ELLENSBURG, WA        #3         40.6                 41.3 IN 1934
LONG CREEK, OR        #3         40.3                 42.0 IN 1958
MORO, OR              #4         41.6                 42.6 IN 1961
REDMOND, OR           #4         40.6                 42.7 IN 1958
BEND, OR              #4         40.5                 41.3 IN 1930
PELTON DAM, OR        #5         44.1                 47.2 IN 1991
PENDLETON, OR         #5         44.0                 46.8 IN 1958
BICKLETON, WA         #5         39.1                 40.7 IN 1963

LISTED BELOW ARE THE LOCATIONS, THE RANK, THE ACCUMULATED SNOWFALL
SINCE DECEMBER 2014, AND THE RECORD LOWEST ACCUMULATION FOR THE
DEC-FEB TIME FRAME OR THE PREVIOUS RECORD IF THE DEC 2014 TO FEB
2015 BROKE THE PRIOR RECORD.  THE YEAR NOTED IN PRIOR RECORDS IS FOR
WHEN THE PERIOD ENDS.  FOR EXAMPLE, THE YEAR 1963 WOULD INCLUDE THE
DECEMBER 1962 TO FEBRUARY 1963 PERIOD.  THE STATIONS INCLUDED ARE
ONLY FAA SITES DUE TO THE QUALITY CONTROL PROCESS STILL ONGOING WITH
ALL REMAINING SITES.

CITY                  RANK     DEC-FEB2015 SNOW     LOWEST DEC-FEB SNOW
YAKIMA, WA            #1        1.6 INCHES           1.7 INCHES IN 1958
MEACHAM, OR           #1       30.2 INCHES          35.4 INCHES IN 1963
WALLA WALLA, WA       #4        0.5 INCHES          NONE IN 2005
PENDLETON, OR         #7        2.6 INCHES          NONE IN 1931
REDMOND, OR           #10       5.3 INCHES           1.2 INCHES IN 1961


III.  SIGNIFICANT WEATHER

DECEMBER:

A COLD FRONT AND A POWERFUL LOW PRESSURE SYSTEM BROUGHT WIDESPREAD
STRONG WINDS TO MUCH OF THE REGION ON DECEMBER 10TH AND 11TH. THE
COLD FRONT, WHICH WAS ASSOCIATED WITH A DEEP LOW PRESSURE SYSTEM OFF
THE NORTHERN BRITISH COLUMBIA COAST, HELPED TO INCREASE THE PRESSURE
GRADIENT ACROSS THE AREA LEADING TO AN INCREASING SOUTH WIND DURING
THE DAY ON DECEMBER 10TH. A ROBUST UPPER LEVEL JET AIDED IN THE
RAPID DEVELOPMENT OF A NEW AREA OF LOW PRESSURE OFF THE OREGON COAST
BY THE MORNING OF DECEMBER 11TH. THIS POWERFUL LOW PRESSURE SYSTEM
PARALLELED THE OREGON COAST THROUGH THE DAY ON THE 11TH AND, IN
COMBINATION WITH DOWNSLOPING MOUNTAIN WINDS, CREATED DAMAGING WINDS
IN SEVERAL LOCATIONS. THE HARDEST HIT AREAS WERE THE BLUE MOUNTAINS,
WALLOWA MOUNTAINS AND THE SOUTHERN CASCADES OF OREGON. THE FOLLOWING
TABLE LISTS SELECTED PEAK WIND GUSTS FROM EACH COUNTY AFFECTED
ACROSS THE AREA:

LOCATION               TIME AND DATE         PEAK WIND GUSTS IN MPH
1 WNW CAYUSE, OR      10:45 AM ON THE 11TH           95
1 NW HEPPNER, OR      01:11 PM ON THE 11TH           88
5 SE DIXIE, WA        01:11 PM ON THE 11TH           84
CONDON, OR            10:10 AM ON THE 11TH           83
5 WNW RUGGS, OR       01:05 PM ON THE 11TH           82
3 N JOSEPH, OR        12:06 PM ON THE 11TH           75
4 SSW WAITSBURG, WA   10:32 AM ON THE 11TH           71
JOHN DAY AIRPORT      08:24 AM ON THE 11TH           69
9 ENE FOSSIL, OR      09:30 AM ON THE 11TH           67
LEXINGTON, OR         11:35 AM ON THE 11TH           66
WALLA WALLA, WA       01:36 PM ON THE 11TH           64
REDMOND AIRPORT       11:11 AM ON THE 11TH           60
PENDLETON AIRPORT     02:00 PM ON THE 11TH           59
13 WSW MIKKALO, OR    01:20 AM ON THE 11TH           59

OTHER THAN THE STRONG DAMAGING WINDS, THE STORM SYSTEM ALSO BROUGHT
RATHER LOW SURFACE PRESSURES AND SEVERAL PERIODS OF RAIN TO MUCH OF THE
AREA.  THE OBSERVED MINIMUM PRESSURE READINGS AND FOUR DAY
PRECIPITATION TOTALS FROM DECEMBER 9TH THROUGH THE 12TH WERE AS FOLLOWS:

LOCATION             PRESSURE READING       PRECIPITATION AMOUNT
REDMOND, OR          989.2MB                0.12 INCHES
DALLES, OR           989.7MB                0.19 INCHES
WALLA, WALLA, WA     990.1MB                1.07 INCHES
PENDLETON, OR        990.9MB                0.71 INCHES
YAKIMA, WA           991.9MB                0.23 INCHES
PASCO, WA            992.4MB                0.15 INCHES

MEACHAM, OR ALSO REPORTED 1.50 INCHES OF PRECIPITATION DURING THIS
FOUR DAY PERIOD, WITH 2.4 INCHES OF SNOW ON DECEMBER 12TH AS SNOW
LEVELS LOWERED ACROSS THE REGION.

TOWARD THE END OF THE MONTH ON DECEMBER 28TH AND 29TH AN ARCTIC COLD
FRONT WITH AN ASSOCIATED UPPER LEVEL DISTURBANCE MOVED THROUGH THE
AREA. THIS SYSTEM BROUGHT LIMITED MOISTURE INTO THE REGION, BUT WAS
ABLE TO COMBINE WITH A NORTHERLY UPSLOPE FLOW TO PRODUCE LOCALIZED
AREAS OF MODERATE TO HEAVY SNOWFALL. THE ACCUMULATING SNOWFALL MAINLY
OCCURRED ALONG THE FOOTHILLS OF THE BLUE MOUNTAINS, ALONG THE BLUE
MOUNTAINS, ALONG THE EAST SLOPES OF THE WASHINGTON AND OREGON CASCADES,
AS WELL AS IN CENTRAL OREGON. LITTLE, IF ANY, SNOW FELL IN THE LOWER
ELEVATIONS OF THE COLUMBIA BASIN OR IN THE COLUMBIA RIVER GORGE. THE
FOLLOWING TABLE LISTS SELECTED SNOWFALL AMOUNTS FROM EACH COUNTY
AFFECTED ACROSS THE AREA:

LOCATION               TIME AND DATE           SNOWFALL TOTAL IN INCHES

2 N MEACHAM, OR        0800 AM ON THE 29TH             14.0 INCHES
1WSW BEND, OR          0825 PM ON THE 29TH             13.0 INCHES
5W UKIAH, OR           0800 AM ON THE 29TH             12.0 INCHES
HEPPNER, OR            0100 PM ON THE 29TH              8.0 INCHES
BEND, OR               0452 PM ON THE 29TH              7.0 INCHES
PILOT ROCK, OR         0100 PM ON THE 29TH              7.0 INCHES
CAMP SHERMAN, OR       1130 AM ON THE 29TH              7.0 INCHES
2W BEND, OR            1015 AM ON THE 29TH              6.0 INCHES
LA GRANDE, OR          0830 AM ON THE 29TH              4.0 INCHES
10SE CLIFFDELL, WA     0108 AM ON THE 29TH              5.0 INCHES


JANUARY:

ON JANUARY 15TH A STRONGER WEATHER SYSTEM MOVED INTO THE PACIFIC
NORTHWEST AND COMBINED WITH MARGINALLY COLD AIR BANKED UP AGAINST THE
WASHINGTON CASCADES TO PRODUCE SNOW. THE SNOW DEVELOPED AND FELL
STARTING DURING THE MIDDAY HOURS ON JANUARY 15TH IN THE YAKIMA VALLEY,
KITTITAS VALLEY AND EAST SLOPE OF THE WASHINGTON CASCADES. THE SNOW
FINALLY TAPERED OFF AND ENDED DURING THE PREDAWN HOURS OF JANUARY 16TH,
BUT NOT BEFORE 1 TO 4 INCHES FELL IN THE YAKIMA AND KITTITAS VALLEY
REGIONS. THIS SYSTEM PRODUCED 2 TO 5 INCHES OF SNOW ALONG THE EAST
SLOPES OF THE WASHINGTON CASCADES, INCLUDING A 5.0 INCHES REPORT NEAR
TROUT LAKE, WA.

ANOTHER STORM AFFECTED MUCH OF THE REGION DURING THE DAY ON JANUARY
17TH. THIS SYSTEM HAD PLENTY OF MOISTURE TO WORK WITH AND THUS
BROUGHT  A WIDESPREAD STEADY RAINFALL TO THE AREA. RAINFALL TOTALS
RANGED FROM 0.25 TO 0.75 INCHES IN MANY LOWER ELEVATIONS AND BASINS,
INCLUDING 0.92 INCHES AT PRINEVILLE, 0.57 INCHES AT YAKIMA, 0.42
INCHES AT PASCO, AND 0.35 INCHES AT PENDLETON. RAINFALL TOTALS OF
0.75 TO 2.00 INCHES WERE COMMON ACROSS THE HIGHER ELEVATIONS AND
MOUNTAINS OF THE REGION. TWO TOP TEN DAILY RAINFALL REPORTS FOR THE
MONTH OF JANUARY WERE ALSO RECEIVED FROM THIS STORM; THE DALLES, OR
HAD 1.45 INCHES OF RAIN, WHICH IS THE 3RD HIGHEST 1-DAY JANUARY
RAINFALL ON RECORD. THE HIGHEST 1-DAY JANUARY RAINFALL ON RECORD AT
THE DALLES IS 1.82 INCHES WHICH WAS FELL ON 01/01/2009. DURING THIS
STORM GOLDENDALE, WA RECEIVED 1.25 INCHES OF RAIN, WHICH RANKS AS
THE 7TH HIGHEST 1-DAY RAIN TOTAL IN THE MONTH OF JANUARY. THE
HIGHEST 1-DAY JANUARY RAINFALL ON RECORD AT GOLDENDALE IS 3.00
INCHES, WHICH FELL ON 01/05/1912.


FEBRUARY:

AN ACTIVE WEATHER PATTERN DURING THE FIRST HALF OF FEBRUARY BROUGHT A
SERIES OF LOW PRESSURE SYSTEMS NEAR OR OVER THE REGION WITH STRONG
SOUTHERLY PRESSURE GRADIENTS DURING THE PERIOD OF FEBRUARY 5TH TO
THE 9TH. THE SUCCESSIVE WAVE OF SYSTEMS BROUGHT TWO SIGNIFICANT
PERIODS OF STRONG WINDS TO THE REGION THAT MAINLY FAVORED THE
LEESIDE OR DOWNSLOPE AREAS OF CENTRAL TO NORTHEAST OREGON.  THE
FOLLOWING TABLE LISTS SELECTED PEAK WIND GUSTS FROM EACH COUNTY
AFFECTED ACROSS THE AREA:

LOCATION               TIME AND DATE         PEAK WIND GUSTS IN MPH
3 N JOSEPH, OR         06:08 AM ON THE 6TH           86
MITCHELL, OR           04:30 AM ON THE 6TH           74
8 WSW GRASS VALLEY, OR 10:48 AM ON THE 6TH           71
3 WSW KOOSKOOSKIE, OR  09:18 AM ON THE 6TH           66
4 W SHANIKO, OR        03:02 AM ON THE 6TH           63
BEND, OR               01:30 AM ON THE 6TH           60
HARDMAN, OR            03:00 AM ON THE 6TH           60
13 WSW MIKKALO, OR     02:35 PM ON THE 6TH           60
NWS PENDLETON, OR      02:35 PM ON THE 6TH           59
WALLA WALLA, WA        03:02 AM ON THE 6TH           58

SUMMARY AND LOOK AHEAD TO THE SPRING OUTLOOK

OVERALL THE WINTER (DEC-JAN-FEB) WILL BE REMEMBERED FOR THE
UNUSUALLY PERSISTENT UPPER LEVEL RIDGE THAT PARKED ITSELF OVER OR
ALONG THE WEST COAST OF NORTH AMERICA. THIS PERSISTENT UPPER LEVEL
RIDGING LEAD TO ABOVE NORMAL TEMPERATURES AND WELL BELOW NORMAL
SNOWFALL. SEVERAL LOCATIONS BROKE ALL TIME RECORD WARM TEMPERATURES
AND LOWEST SNOWFALL RECORDS. THE SNOWPACK IN THE MOUNTAINS WAS ALSO
MUCH BELOW AVERAGE THROUGH MOST OF THE THREE MONTH PERIOD; GENERALLY
LESS THAN 50 PERCENT AND IN SOME CASES LESS THAN 25 PERCENT OF
AVERAGE. THIS ABNORMALLY LOW SNOWPACK WAS MAINLY DUE TO HIGHER THAN
AVERAGE SNOW LEVELS AND NOT SO MUCH A LACK OF PRECIPITATION. EVEN
THOUGH THE UPPER LEVEL RIDGE WAS RATHER PERSISTENT ACROSS THE
PACIFIC NORTHWEST THROUGH MUCH OF THE WINTER, THE RIDGE DID
PERIODICALLY BREAK DOWN ALLOWING OCCASIONAL STORM SYSTEMS TO MOVE
THROUGH. THIS ALLOWED OVERALL PRECIPITATION TOTALS TO END UP NEAR
AVERAGE FOR THE SEASON (PLUS OR MINUS APPROXIMATELY 1 INCH).

LOOKING AHEAD TO THE SPRING MONTHS OF APRIL-MAY-JUNE THE CLIMATE
PREDICTION CENTER IS CALLING FOR A GREATER THAN 50 PERCENT CHANCE FOR
CONTINUED ABOVE NORMAL TEMPERATURES WITH EQUAL CHANCES FOR ABOVE OR
BELOW NORMAL PRECIPITATION, EXCEPT ALONG THE EAST SLOPES OF THE
CASCADES WHERE THERE IS A 33 PERCENT CHANCE FOR LESS THAN AVERAGE
PRECIPITATION. THIS OUTLOOK CAN BE FOUND AT:
CPC.NCEP.NOAA.GOV/PRODUCTS/PREDICTIONS/LONG_RANGE/SEASONAL.PHP?LEAD=1










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