Wind Advisory 2, NWS Pendleton, OR

000 
WWUS76 KPDT 030859
NPWPDT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
1259 AM PST WED JAN 3 2007


ORZ049-031000-
/O.EXP.KPDT.WI.Y.0002.000000T0000Z-070103T0900Z/
GRANDE RONDE VALLEY-
INCLUDING THE CITIES OF...LA GRANDE...ELGIN...UNION
1259 AM PST WED JAN 3 2007

...WIND ADVISORY WILL EXPIRE AT 1 AM PST EARLY THIS MORNING...

THE WIND ADVISORY WILL EXPIRE AT 1 AM PST EARLY THIS MORNING. 

WINDS IN THE GRANDE RONDE VALLEY HAVE FALLEN BELOW ADVISORY CRITERIA.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
222 PM PST TUE JAN 2 2007

.SHORT TERM...NEARLY EVERY WHERE MIXED OUT THE COLD AIR TODAY WITH
ELLENSBURG BEING THE LAST HOLDOUT BUT EXPECT TEMPERATURES THERE TO
BREAK ABOVE FREEZING ANYTIME NOW. COLD FRONT OVER WESTERN
WASHINGTON IS SLOWLY STARTING TO SAG SOUTHWARD. COPIOUS AMOUNTS OF
MOISTURE ASSOCIATED WITH THIS FRONT AS THE PORTLAND AND SEATTLE
RADARS ARE SHOWING. THIS MOISTURE IS BEGINNING TO SPILL OVER THE
CENTRAL AND SOUTHERN WASHINGTON CASCADES AT THIS TIME. SNOW LEVELS
INITIALLY OVER 6000 FEET SO EXPECTING ALL RAIN FOR PASSES AND BELOW.
THIS MOISTURE WILL SLOWLY SAG SOUTHWARD AND BE OVER OREGON ON
WEDNESDAY. FORECAST INDICATES THIS BY HAVING HIGHER POPS ACROSS THE
NORTHERN PORTION OF FORECAST AREA THIS EVENING THEN SAGGING
SOUTHWARD OVERNIGHT AND WEDNESDAY. SNOW LEVELS IN THE NORTH WILL
SLOWLY LOWER TO AROUND 3000 FEET BY WEDNESDAY MORNING BRINGING SNOW
BACK THE SNOQUALMIE PASS AREA. BY WEDNESDAY EVENING SNOW LEVELS
WILL RANGE FROM 1500 FEET IN THE NORTH TO 3500 FEET IN THE SOUTH.
WILL NEED TO MONITOR SNOW ACCUMULATION POTENTIAL LATE WEDNESDAY
THROUGH WEDNESDAY NIGHT FOR POSSIBLE HIGHLIGHTS. SHOWER POTENTIAL
WILL CONTINUE THURSDAY AS UPPER LEVEL TROUGH FINALLY PASSES THROUGH
THE REGION. THIS WILL BE FOLLOWED BY A BREAK OF DRY WEATHER
THURSDAY NIGHT BEFORE ANOTHER SYSTEM ARRIVES FRIDAY AFTERNOON. WIND
ADVISORY WILL CONTINUE THROUGH THIS EVENING FOR THE SOUTHERN GRANDE
RONDE VALLEY. EXPECT WINDS TO DECREASE OVERNIGHT AS THE COLD FRONT
PASSES.

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY...AN ACTIVE WEATHER
PATTERN IS IN STORE FOR THE EXTENDED PERIOD. A LARGE SUBTROPICAL
HIGH IN THE EASTERN PACIFIC WILL STEER THE STORM TRACK INTO THE
PACIFIC NORTHWEST AND A SERIES OF DISTURBANCES WILL MOVE THROUGH THE
AREA IN A WEST TO NORTHWEST FLOW EVERY 24 HOURS OR SO. THERE LOOKS
TO BE A GOOD MOISTURE TAP WITH THESE SYSTEMS SO RAIN AND SNOW
AMOUNTS COULD BE SUBSTANTIAL. THE MOUNTAINS WILL SEE THE BRUNT OF
THE PRECIPITATION WITH THE LOWER ELEVATIONS GENERALLY HAVING SLIGHT
CHANCES OF PRECIPITATION. SNOW LEVELS WILL BE AROUND 2500 TO 3500
FEET AT NIGHT AND 3500 TO 4500 FEET DURING THE DAY IN MOST AREAS AND
THE COLUMBIA BASIN AND YAKIMA AND KITTITAS VALLEYS 1000 TO 1500 FEET
LOWER THAN THAT. TEMPERATURES LOOK TO BE ABOVE NORMAL DUE TO THE
MARITIME ORIGIN OF THESE SYSTEMS. SUNDAY AND MONDAY LOOK BREEZY AT
THIS TIME. 83

&&

.AVIATION...RADAR SHOWING STRONG RETURNS ON THE WEST SIDE OF THE
CASCADES AND EXPECT SHOWERS OVER HERE TO PICK UP IN INTENSITY IN THE
NEXT FEW HOURS...ESPECIALLY ALONG THE EAST SLOPES OF THE CASCADES.
WITH WARM AIR IN PLACE EXPECT ALL PRECIPITATION TO FALL AS RAIN.
CURRENT VFR CONDITIONS MAY DROP TO MVFR CEILINGS AND VISIBILITY AT
TIMES WITH THE STRONGER PRECIPITATION BANDS TONIGHT. SURFACE WINDS
IN EXCESS OF 25 KTS ARE POSSIBLE AT KRDM..KPDT...KALW AND KPSC THIS
EVENING AND OVERNIGHT. PRECIPITATION SHOULD DIMINISH TO ISOLATED
SHOWERS TOMORROW MORNING. 83

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  46  35  38 /  80  60  40  40
ALW  44  46  37  38 /  80  40  20  40
PSC  41  44  35  38 /  40  20  20  20
YKM  36  40  31  35 /  60  20  20  20
HRI  43  45  35  40 /  40  20  30  20
ELN  34  36  29  32 /  60  20  20  20
RDM  41  44  33  34 /  50  70  60  30
LGD  37  38  33  34 /  60  60  60  50
GCD  38  42  34  34 /  50  70  60  40
DLS  40  47  36  39 /  90  70  50  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 7 PM PST THIS EVENING FOR ORZ049.

WA...NONE.
&&

TI:GGG
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
91/83/83

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
1043 AM PST TUE JAN 2 2007

UPDATED

ORZ041-WAZ024-501-502-026>030-ORZ042>044-049-050-501>506-031115-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON-
EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON-
KITTITAS VALLEY-YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS-NORTH CENTRAL OREGON-CENTRAL OREGON-
LOWER COLUMBIA BASIN OF OREGON-GRANDE RONDE VALLEY-WALLOWA COUNTY-
FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON-
NORTHERN BLUE MOUNTAINS OF OREGON-
SOUTHERN BLUE MOUNTAINS OF OREGON-
NORTHERN WHEELER AND SOUTHERN GILLIAM COUNTIES-JOHN DAY BASIN-
OCHOCO-JOHN DAY HIGHLANDS-
1043 AM PST TUE JAN 2 2007

THIS HAZARDOUS WEATHER OUTLOOK IS FOR CENTRAL AND NORTHEAST OREGON
AS WELL AS SOUTH CENTRAL AND SOUTHEAST WASHINGTON.

.DAY ONE...TODAY AND TONIGHT

STRONG WIND
     GRANDE RONDE VALLEY

SOUTHERLY WINDS IN THE GRANDE RONDE VALLEY HAVE INCREASED OVERNIGHT
AHEAD OF THE NEXT SYSTEM...AND WILL CONTINUE TO BE VERY WINDY
THROUGH THE DAY. A WIND ADVISORY IS IN EFFECT FOR THIS AREA...PLEASE
REFER TO PRODUCT ID PDXNPWPDT FOR FURTHER DETAILS.

THE REST OF THE AREA WILL SEE A SLIGHT CHANCE TO A CHANCE OF RAIN
THROUGH THE DAY AHEAD OF AN APPROACHING COLD FRONT TODAY. THE COLD
FRONT WILL THEN MOVE INTO THE AREA OVERNIGHT...INCREASING
PRECIPITATION ACROSS THE REGION.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

THE COLD FRONT WILL STALL ACROSS OREGON...KEEPING MOSTLY RAIN AND
HIGH ELEVATION SNOW ACROSS THE AREA. LIGHT TO MODERATE RAINFALL IN
THE BLUE MOUNTAINS WEDNESDAY AND WEDNESDAY NIGHT IN ADDITION TO
SNOWMELT WILL LEAD TO RIVER RISES....THOUGH FLOODING IS NOT
ANTICIPATED AT THIS TIME. UNSETTLED WEATHER WILL THEN CONTINUE FROM
MIDWEEK THROUGH THE WEEKEND AS SEVERAL SYSTEMS CROSS THE AREA.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

GRAPHICAL FORECASTS OF WEATHER HAZARDS OUT TO SEVEN DAYS
ARE DISPLAYED ON THE WORLD WIDE WEB AT:

WWW.WRH.NOAA.GOV/PENDLETON/CURRENTHAZARDS/HWO.HTML

ALL LETTERS IN THE ABOVE URL ARE LOWER CASE...EXCEPT THE H IN
CURRENTHAZARDS.