Wind Advisory 23, NWS Pendleton, OR

000 
WWUS76 KPDT 291734
NPWPDT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
934 AM PST TUE NOV 29 2005


ORZ049-291845-
/O.CAN.KPDT.WI.Y.0023.000000T0000Z-051129T1800Z/
GRANDE RONDE VALLEY-
INCLUDING THE CITY OF...LA GRANDE
934 AM PST TUE NOV 29 2005

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE WIND
ADVISORY. 

SOUTH WINDS HAVE SUBSIDED ACROSS THE REGION...THUS THE WIND
ADVISORY IS CANCELLED.

$$

AREA FORECAST DISCUSSION...UPDATED AVIATION SECTION
NATIONAL WEATHER SERVICE PENDLETON OR
325 AM PST TUE NOV 29 2005

.SHORT TERM...TODAY THROUGH WEDNESDAY...COLD...MOIST SYSTEM
CONTINUES TO PUSH THROUGH THE REGION THIS MORNING. MUCH OF THE DEEP
MOISTURE HAS PUSHED INTO IDAHO...THOUGH SOME OF IT STILL LINGERS
OVER THE NORTHEAST CORNER OF OREGON AND EXTREME SOUTHEAST
WASHINGTON. PRECIP ALONG THE CASCADES HAS DECREASED BUT LIGHT SNOW
CONTINUES TO FALL OUT OF LOW LEVEL CLOUDS OVER THE GORGE...YAKIMA
VALLEY...KITTITAS VALLEY...THE WASHINGTON CASCADE EAST SLOPES AND
NEAR THE CREST OF THE OREGON CASCADES. THUS WILL EXTEND THE VARIOUS
ADVISORIES AND WARNINGS FOR THE GORGE AND YAKIMA VALLEY UNTIL AT 10
AM. AS THE UPPER LOW MOVES ONSHORE TODAY...COULD SEE AN INCREASE IN
SNOW SLOPPING OVER FROM THE WEST SIDE. WILL EXTEND ADVISORIES AND
WARNINGS FOR CENTRAL OREGON...NORTH CENTRAL OREGON...SOUTHERN
WASHINGTON CASCADE EAST SLOPE ZONES...AND KITTITAS VALLEY THROUGH
THE DAY. WINDY CONDITIONS IN THE GRANDE RONDE VALLEY WILL CONTINUE
THROUGH MOST OF THE MORNING...AND WILL CONTINUE THE SNOW/BLOWING
SNOW AND WIND ADVISORIES THERE UNTIL 10 AM. ELSEWHERE EXPECT A MIX
OF RAIN...SNOW AND SLEET THIS MORNING. THE PRECIP OVER BASIN SHOULD
GRADUALLY WIND DOWN THROUGH THE DAY. PRECIP OVER THE NORTHEAST
MOUNTAINS WILL PERSIST THROUGH THE DAY AND SHOULD INCREASE LATE THIS
AFTERNOON AND EVENING OVER AS THE UPPER LOW MOVES ACROSS WASHINGTON
STATE. UPSLOPE INTO THE NORTHERN BLUE MOUNTAINS OF OREGON AND THE
BLUE MOUNTAINS OF WASHINGTON WILL ENHANCE THIS SNOW FALL AND WILL
ISSUE A SNOW ADVISORY FOR 7-9 INCHES DURING A 22 HOUR PERIOD.

ON WEDNESDAY...SHOULD SEE SNOW CONTINUE OVER THE NORTHEAST OREGON
MOUNTAIN ZONES...THOUGH THE SNOW FALL WILL GRADUALLY DECREASE
THROUGH THE DAY...ENDING BY LATE AFTERNOON. 90

.LONG TERM...WEDNESDAY NIGHT THROUGH MONDAY.  A STRONG OCCLUDED
FRONT IS PROGGED TO MOVE ACROSS THE REGION THURSDAY AND THURSDAY
NIGHT.  ACCORDING TO THE GFS AND ECMWF (THESE MODELS PREFERRED OVER
THE SLOWER MESO-ETA)...MOISTURE AND WEAK WARM AIR ADVECTION WILL
INCREASE ACROSS SW OREGON WEDNESDAY NIGHT THEN WILL INCREASE ACROSS
EASTERN OREGON AND SE WASHINGTON THURSDAY.  SNOW LEVELS WILL
INCREASE TO AROUND 3500-4000 FEET WITH THIS SYSTEM...EXCEPT IN OUR
NW ZONES WHERE COLD AIR DAMMING WILL REMAIN.  FORECASTERS WILL KEEP
A CLOSE EYE ON THIS SYSTEM...AS ADDITIONAL WINTER WEATHER STATEMENTS
MAY BE IN ORDER.  A MOIST W-NW FLOW ALOFT WITH A SERIES OF
SHORTWAVES WILL FOLLOW FOR UNSETTLED WINTER WEATHER CONDITIONS THE
REMAINDER OF THE EXTENDED PERIOD.  85

&&

.AVIATION...MOUNTAINS WILL BE OBSCURED AT TIMES THROUGH 12Z
WEDNESDAY DUE TO SNOW AND LOW CEILINGS. MVFR VISIBILITIES AND/OR
CEILINGS ARE POSSIBLE THE NEXT 24 HOURS AT KPDT, KALW, KRDM, AND
KPSC.  HOWEVER...THESE CONDITIONS WILL ONLY LAST FOR A SHORT PERIOD
OF TIME...NO MORE THAN AN HOUR OR TWO.  IFR CEILINGS AND
VISIBILITIES ARE FORECAST FOR KYKM AND KDLS THROUGH MID MORNING.  85

&&
.PRELIMINARY POINT TEMPS/POPS...
PDT  41  31  39  26 /  50  30  10  20
ALW  39  33  39  26 /  50  30  10  10
PSC  41  29  41  27 /  40  20  10  10
YKM  40  23  38  22 /  40  20  10  10
HRI  41  28  42  26 /  40  20  10  20
ELN  36  23  35  16 /  60  20  10  10
RDM  39  19  37  24 /  60  30  10  50
LGD  35  27  35  21 /  70  40  30  20
5J0  36  24  36  20 /  50  50  20  40
DLS  42  31  43  28 /  60  30  10  40

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WINTER STORM WARNING CONTINUES UNTIL 4 PM PST THIS AFTERNOON
     FOR ORZ042-ORZ043.

     HEAVY SNOW WARNING CONTINUES UNTIL 10 AM PST THIS MORNING FOR
     ORZ041.

     SNOW AND BLOWING SNOW ADVISORY CONTINUES UNTIL 10 AM PST THIS
     MORNING FOR ORZ049.

     WIND ADVISORY CONTINUES UNTIL 10 AM PST THIS MORNING FOR ORZ049.

     SNOW ADVISORY CONTINUES UNTIL 10 AM PST THIS MORNING FOR ORZ506.

     SNOW ADVISORY FROM 2 PM THIS AFTERNOON TO 12 PM PST WEDNESDAY
     FOR ORZ502.

WA...SNOW ADVISORY CONTINUES UNTIL 4 PM PST THIS AFTERNOON FOR
     WAZ501-WAZ502.

     SNOW ADVISORY FROM 2 PM THIS AFTERNOON TO 12 PM PST WEDNESDAY
     FOR WAZ030.

     HEAVY SNOW WARNING CONTINUES UNTIL 10 AM PST THIS MORNING FOR
     WAZ024.

     SNOW ADVISORY CONTINUES UNTIL 4 PM PST THIS AFTERNOON FOR
     WAZ026.

     SNOW ADVISORY CONTINUES UNTIL 10 AM PST THIS MORNING FOR
     WAZ027.

&&

TI:YYY
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
90/85/85

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
900 PM PST MON NOV 28 2005

WAZ024-501-502-026>030-ORZ041>044-049-050-501>506-291315-
EAST SLOPES OF THE CENTRAL CASCADES-
EAST SLOPES OF THE SOUTHERN CASCADES-KITTITAS VALLEY-
YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS-EASTERN COLUMBIA RIVER GORGE OF OREGON-
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-
900 PM PST MON NOV 28 2005

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

.DAY ONE...TONIGHT

SNOW
     EASTERN COLUMBIA RIVER GORGE OF WASHINGTON, EAST SLOPES OF THE
     CENTRAL CASCADES, EAST SLOPES OF THE SOUTHERN CASCADES,
     KITTITAS VALLEY, YAKIMA VALLEY, EASTERN COLUMBIA RIVER GORGE
     OF OREGON, NORTH CENTRAL OREGON, CENTRAL OREGON, OCHOCO-JOHN
     DAY HIGHLANDS

NUMEROUS WATCHES AND WARNINGS ARE IN EFFECT FOR SNOW FOR TONIGHT...
WITH THE HEAVIEST SNOW EXPECTED THIS EVENING CLOSE TO THE CASCADES.

SEE LATEST PDXWSWPDT FOR MORE DETAILS.

STRONG WIND AND BLOWING SNOW GRANDE RONDE VALLEY

A WIND ADVISORY IS IN EFFECT FOR STRONG SOUTH WINDS OF 30 TO 40 MPH
WITH GUSTS TO 55 MPH ESPECIALLY IN LADD AND PYLES CANYONS. IN
ADDITION...A SNOW AND BLOWING SNOW ADVISORY IS ALSO IN EFFECT.
PLEASE SEE THE LATEST PDXNPWPDT FOR WIND ADVISORY DETAILS AND
PDXWSWPDT FOR SNOW AND BLOWING SNOW ADVISORY DETAILS.

.DAYS TWO THROUGH SEVEN...TUESDAY SUNDAY

SNOW TUESDAY AND WEDNESDAY
     NORTHWEST BLUE MOUNTAINS, NORTHERN BLUE MOUNTAINS OF OREGON

A MOIST UPSLOPE FLOW WILL LEAD TO WIDESPREAD SNOW ACROSS THE BLUE
MOUNTAINS TUESDAY NIGHT INTO WEDNESDAY. UP TO A FOOT OF SNOW IS
POSSIBLE IN SOME LOCATIONS BY WEDNESDAY AFTERNOON. PLEASE REFER TO
LATEST

PDXWSWPDT FOR MORE DETAILS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TONIGHT THROUGH WEDNESDAY.

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.