High Wind Warning 3, NWS Pendleton, OR

000 
WWUS76 KPDT 171205
NPWPDT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
405 AM PST TUE JAN 17 2006

ORZ049-172000-
/O.CAN.KPDT.HW.W.0003.000000T0000Z-060117T1400Z/
/O.NEW.KPDT.WI.Y.0007.060117T1205Z-060118T0100Z/
GRANDE RONDE VALLEY-
INCLUDING THE CITIES OF...LA GRANDE...ELGIN...UNION
405 AM PST TUE JAN 17 2006

...HIGH WIND WARNING IS CANCELLED...
...WIND ADVISORY IN EFFECT UNTIL 5 PM PST THIS AFTERNOON...

THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 5 PM PST THIS AFTERNOON. THE
HIGH WIND WARNING HAS BEEN CANCELLED. 

WINDS HAVE DECREASED IN THE GRANDE RONDE VALLEY...YET SOUTH WINDS
SUSTAINED AT 25 TO 35 MPH WITH GUSTS TO 45 MPH WILL CONTINUE NEAR
LADD AND PYLES CANYONS THROUGH LATE AFTERNOON. THOSE TRAVELING ALONG
INTERSTATE 84 THROUGH LADD CANYON AND HIGHWAYS 203 AND 237 NEAR
PYLES CANYON SHOULD BE PREPARED FOR SUDDEN WIND GUSTS AND
DANGEROUS CROSS WINDS.

SNOW SHOWERS THIS MORNING MAY PRODUCE LOCAL BLOWING AND DRIFTING
SNOW.

A WIND ADVISORY IS ISSUED WHEN SUSTAINED WINDS ARE FORECAST
BETWEEN 31 AND 39 MPH OR GUSTS RANGING FROM 46 TO 57 MPH. WINDS
OF THESE MAGNITUDES CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. MINOR PROPERTY DAMAGE MAY ALSO OCCUR. FOR
ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT
WWW.WEATHER.GOV/PENDLETON.

$$

AREA FORECAST DISCUSSION...CORRECTED
NATIONAL WEATHER SERVICE PENDLETON OR
215 PM PST MON JAN 16 2006

.SHORT TERM...TONIGHT THROUGH WEDNESDAY NIGHT...A PROGRESSIVE
WEATHER PATTERN WILL REMAIN OVER THE PACIFIC NORTHWEST THROUGH
MIDWEEK...BRINGING PLENTY OF ACTIVE WEATHER ACROSS THE REGION.

WATER VAPOR IMAGERY SHOWS A VIGOROUS AND MOIST SYSTEM MOVING INTO
THE PACIFIC NORTHWEST...WITH THE WARM FRONT EXTENDING FROM NORTHWEST
WASHINGTON BACK TO SOUTHEAST WASHINGTON AND EASTERN OREGON.  AS A
RESULT...SNOW LEVELS ARE BEGINNING TO RISE ACROSS CENTRAL AND NORTH
CENTRAL OREGON.  PRECIPITATION THIS MORNING ACROSS CENTRAL OREGON
FELL AS SNOW...WITH REPORTS RANGING BETWEEN 4 AND 7 INCHES OF NEW
SNOW. UP TO 4 INCHES OF NEW SNOW WAS REPORTED IN NORTH CENTRAL
OREGON.  TEMPERATURES THOUGH HAVE WARMED INTO THE MID 30S TO NEAR
40...WITH RAIN AND SNOW MELT OCCURRING.  THEREFORE...WILL ALLOW THE
HEAVY SNOW WARNING AND THE SNOW ADVISORIES FOR CENTRAL OREGON...
NORTH CENTRAL OREGON...AND NORTHERN WHEELER AND SOUTHERN GILLIAM
COUNTIES TO EXPIRE AT 3 PM PST THIS AFTERNOON.  AM A LITTLE
CONCERNED WITH THE POTENTIAL FOR FLOODING IN DESCHUTES COUNTY THIS
EVENING. THE GROUND THERE REMAINS SATURATED...AND THE ADDITIONAL
RAINFALL COMBINED WITH TODAYS SNOWMELT MAY LEAD TO SOME MINOR
FLOODING.  HOWEVER...DO NOT EXPECT MORE THAN A COUPLE OF TENTHS OF
AN INCH OF ADDITIONAL RAINFALL TO OCCUR THIS EVENING.

SNOW CONTINUES TO FALL ACROSS SOUTH CENTRAL WASHINGTON...WITH SNOW
LEVELS HOVERING BETWEEN 1000 AND 1500 FEET.  THE DALLES AND HANFORD
HAVE EVEN REPORTED A RAIN SNOW MIX FOR A BRIEF PERIOD.  SNOW REPORTS
ALONG THE EAST SLOPES OF THE CENTRAL AND SOUTHERN WASHINGTON
CASCADES HAVE RANGED BETWEEN 5 AND 10 INCHES WITH SNOW CONTINUING
WILL THEREFORE KEEP THE HEAVY SNOW WARNING IN EFFECT FOR TONIGHT
THROUGH 10 AM PST TUESDAY.  WILL ALSO KEEP THE WINTER STORM WARNING
GOING FOR THE KITTITAS VALLEY THROUGH 4 AM PST TUESDAY AS SNOW AND
FREEZING RAIN WILL CONTINUE TO BE A THREAT.  ACROSS EASTERN
OREGON...WILL KEEP THE SNOW ADVISORIES GOING THROUGH TOMORROW
MORNING...WITH MODERATE TO HEAVY SNOW ALREADY FALLING IN MEACHAM.

PRESSURE GRADIENTS ALSO CONTINUE TO INCREASE ACROSS NORTHEAST OREGON
THIS AFTERNOON...WITH WINDS IN THE LADD AND PYLES RANGING BETWEEN 25
AND 35 MPH.  GUSTS TO 41 MPH HAVE BEEN REPORTED...WITH GUSTS UP TO
50 MPH POSSIBLE OVERNIGHT.  THEREFORE...THE WIND ADVISORY WILL
CONTINUE THROUGH TONIGHT.

THE WARM FRONT WILL CONTINUE TO LIFT ACROSS THE FORECAST AREA THIS
EVENING AND OVERNIGHT...WITH RAIN AND SNOW CONTINUING ACROSS THE
REGION.  SNOW LEVELS WILL GRADUALLY INCREASE TO AROUND 3000 FEET
ACROSS SOUTH CENTRAL WASHINGTON INTO TOMORROW...WITH SNOW LEVELS
RISING TO AROUND 5000 FEET ACROSS CENTRAL OREGON.  A COLD FRONT
WILL THEN MOVE ACROSS THE REGION LATE TUESDAY AND TUESDAY NIGHT...
WITH SNOW LEVELS LOWERING ONCE AGAIN.  ANOTHER WAVE WILL MOVE
ACROSS THE REGION ON WEDNESDAY...CONTINUING THE THREAT OF
PRECIPITATION.  PALMER

.LONG TERM...THURSDAY THROUGH MONDAY...CONTINUED UNSETTLED WEATHER
IS EXPECTED AS A SERIES OF PACIFIC STORMS CONTINUES TO MOVE ONSHORE
IN A PROGRESSIVE FLOW ALOFT. THIS PATTERN IS NOT EXPECTED TO BREAK
UNTIL LATE IN THE EXTENDED PERIOD. THE STRONGEST SYSTEM IS FORECAST
BY THE GFS MODEL TO MOVE INTO THE REGION ON SATURDAY AND SATURDAY
NIGHT. THE OTHER MODELS ARE IN FAIR AGREEMENT AND HAVE NO REASON TO
DISPUTE THE MODELS TOO MUCH. HOWEVER WILL USE CAUTION AND NOT GO ANY
HIGHER THAN CHANCE PRECIP PROBABILITIES. A LARGE UPPER LEVEL HIGH
PRESSURE RIDGE IS THEN FORECAST TO MOVE IN ON SUNDAY WITH MUCH
IMPROVEMENT AND DRIER CONDITIONS. HOWEVER THIS TIME OF YEAR ANY
UPPER HIGH PRESSURE SYSTEM ALOFT USUALLY RESULTS IN DEEP COLUMBIA
BASIN INVERSIONS DEVELOPING WITH AREAS OF FOG AND/OR LOW CLOUDS
FORMING AS WELL. TEMPERATURES ARE NOT EXPECTED TO CHANGE MUCH DURING
THE PERIOD AND WILL REMAIN NEAR TO SLIGHTLY BELOW NORMAL. 88

&&

.AVIATION...THE SNOW HAS ENDED AT KRDM WITH CEILINGS AND
VISIBILITIES GREATLY IMPROVED AT THIS TIME. KDLS...KPDT...KALW...
KPSC AND KYKM ARE BOUNCING BETWEEN IFR AND MVFR WITH MOSTLY RAIN
FALLING...EXCEPT AT KYKM WHICH HAS MOSTLY SNOW. AS SUCH KYKM WILL
HAVE THE GREATEST POTENTIAL TO HAVE PREVAILING IFR CONDITIONS THIS
EVENING WHILE THE OTHER SITES JUST MENTIONED WILL HAVE PREVAILING
MVFR CONDITIONS...WITH IFR AT TIMES. CONDITIONS WILL IMPROVE
OVERNIGHT AT ALL SITES AND TWEB ROUTES AS THIS CURRENT WEATHER
SYSTEM MOVES OUT OF THE REGION. 88

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  38  47  36  42 /  70  60  50  30
ALW  40  49  37  42 /  70  60  60  30
PSC  39  49  36  45 /  70  40  40  30
YKM  30  42  31  38 /  70  30  40  30
HRI  38  48  34  44 /  70  50  40  30
ELN  30  38  29  34 /  80  40  40  30
RDM  35  44  30  38 /  60  70  60  40
LGD  34  40  31  36 /  70  70  70  40
5J0  30  43  28  38 /  70  80  70  50
DLS  37  46  35  42 /  70  70  60  30

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...SNOW ADVISORY UNTIL 10 AM PST TUESDAY FOR ORZ506.
     SNOW ADVISORY UNTIL 10 AM PST TUESDAY FOR ORZ502.
     WIND ADVISORY UNTIL 7 AM PST TUESDAY FOR ORZ049.
     SNOW ADVISORY UNTIL 10 AM PST TUESDAY FOR ORZ503.

WA...SNOW ADVISORY UNTIL 10 AM PST TUESDAY FOR WAZ030.
     HEAVY SNOW WARNING UNTIL 4 AM PST TUESDAY FOR WAZ501-WAZ502.
     WINTER STORM WARNING UNTIL 4 AM PST TUESDAY FOR WAZ026.

&&

TI:YGG
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
82/88/88

HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
558 PM PST MON JAN 16 2006

WAZ024-501-502-026>030-ORZ041>044-049-050-501>506-171315-
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-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-
558 PM PST MON JAN 16 2006

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

.DAY ONE...TONIGHT

WINTER MIX OF SNOW AND FREEZING RAIN
     KITTITAS VALLEY

HEAVY SNOW
     EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON, EAST SLOPES
     OF THE SOUTHERN CASCADES OF WASHINGTON, NORTHWEST BLUE
     MOUNTAINS, NORTHERN BLUE MOUNTAINS OF OREGON, SOUTHERN BLUE
     MOUNTAINS OF OREGON, OCHOCO-JOHN DAY HIGHLANDS

STRONG WIND
     GRANDE RONDE VALLEY

A STRONG SYSTEM WILL CONTINUE TO MOVE THROUGH THE REGION THROUGH THE
OVERNIGHT HOURS...BRINGING PLENTY OF RAIN AND SNOW TO THE REGION.
HEAVY SNOW WARNINGS...A WINTER STORM WARNING AND SNOW ADVISORIES
ARE IN EFFECT FOR PORTIONS OF THE FORECAST AREA. PLEASE REFER TO THE
LATEST PRODUCT PDXWSWPDT (WWUS46 KPDT) FOR DETAILS. PRESSURE
GRADIENTS WILL REMAIN TIGHT ACROSS NORTHEAST OREGON. THIS WILL
PRODUCE VERY WINDY CONDITIONS IN PORTIONS OF THE GRANDE RONDE VALLEY
WITH THE STRONGEST WINDS OCCURRING IN THE VICINITY OF LADD AND PYLES
CANYONS. PLEASE REFER TO THE LATEST PRODUCT PDXNPWPDT (WWUS76 KPDT)
FOR DETAILS.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY

SNOW TUESDAY
     NORTHWEST BLUE MOUNTAINS, NORTHERN BLUE MOUNTAINS OF OREGON,
     SOUTHERN BLUE MOUNTAINS OF OREGON, OCHOCO-JOHN DAY HIGHLANDS

STRONG WIND TUESDAY
     GRANDE RONDE VALLEY

AS THE PRECIPITATION FROM THE MONDAY WARM FRONTAL PASSAGE WINDS
DOWN...SIGNIFICANT SNOWFALL WILL CONTINUE ACROSS THE BLUE MOUNTAINS
OF OREGON AND WASHINGTON AND THE OCHOCO-JOHN DAY HIGHLANDS THROUGH
MID MORNING ON TUESDAY. VERY WINDY CONDITIONS WILL ALSO PERSIST IN
THE GRANDE RONDE VALLEY THROUGH MID MORNING ON TUESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL BE REQUIRED TONIGHT FOR SNOW AND FREEZING
RAIN IN THE KITTITAS VALLEY.

SPOTTER ACTIVATION WILL BE REQUIRED TONIGHT AND TUESDAY FOR HEAVY
SNOW ALONG THE EAST SLOPES OF THE CENTRAL AND SOUTHERN CASCADES IN
WASHINGTON AND FOR SNOW IN THE BLUE MOUNTAINS IN WASHINGTON AND
OREGON.

SPOTTER ACTIVATION MAY BE REQUIRED TONIGHT AND TUESDAY IN THE
GRANDE RONDE VALLEY FOR STRONG WINDS.

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.