Wind Advisory 8, NWS Pendleton, OR

000 
WWUS76 KPDT 042055
NPWPDT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
1255 PM PST SUN MAR 4 2007


ORZ049-042200-
/O.CAN.KPDT.WI.Y.0008.000000T0000Z-070304T2300Z/
GRANDE RONDE VALLEY-
INCLUDING THE CITIES OF...LA GRANDE...ELGIN...UNION
1255 PM PST SUN MAR 4 2007

...WIND ADVISORY IS CANCELLED...

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

LOCALLY BREEZY CONDITIONS WILL CONTINUE NEAR LADD AND PYLES CANYON
THROUGH THE AFTERNOON BUT REMAIN BELOW ADVISORY CRITERIA.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
405 AM PST SUN MAR 4 2007

UPDATED AVIATION DISCUSSION

.SHORT TERM...TODAY THROUGH MONDAY...AN UPPER LEVEL RIDGE WILL MOVE
SLOWLY ACROSS EASTERN WASHINGTON AND OREGON TODAY. SUBSIDENCE
ASSOCIATED WITH THE RIDGE HAS STRENGTHENED SURFACE INVERSIONS OVER
THE AREA WITH FOG AND STRATUS FORMING UNDER THE INVERSIONS IN THE
COLUMBIA BASIN. EXPECT THE FOG AND LOW CLOUDS TO BURN OFF BY
AFTERNOON...BUT LOWERED TEMPERATURES A FEW DEGREES IN THE COLUMBIA
BASIN. A WARM FRONT WILL BRUSH THE CASCADES THIS AFTERNOON WITH
MOST OF THE PRECIPITATION REMAINING WEST...BUT SOME RAIN WILL SLOP
OVER THE CREST. THE COLD FRONT WILL MOVE THROUGH SUNDAY NIGHT AND
MONDAY MORNING WITH A CHANCE OF RAIN. UPSLOPE FLOW WILL KEEP
LINGERING PRECIPITATION OVER NORTHEAST OREGON MOUNTAINS MONDAY
AFTERNOON. COONFIELD

.LONG TERM...MONDAY NIGHT THROUGH SATURDAY. A LARGE UPPER TROUGH
OFF THE EASTERN PACIFIC WILL SEND A SERIES OF WAVES ACROSS THE
REGION FOR A CHANCE OF RAIN AND MOUNTAIN SNOW THROUGH MOST OF THE
EXTENDED PERIOD.  MODELS ARE STRONGER WITH THE UPPER RIDGE OVER THE
PACIFIC NW EARLY IN THE PERIOD COMPARED TO PREVIOUS RUNS.  PER
COORDINATION WITH SURROUNDING OFFICES...WILL REMOVE ANY MENTION OF
PRECIPITATION MONDAY NIGHT THROUGH TUESDAY MORNING AND WILL MENTION
A SLIGHT CHANCE ALONG THE EAST SLOPES OF THE WA CASCADES TUESDAY
AFTERNOON.  A PROGRESSIVE FLOW PATTERN WILL BEGIN TUESDAY NIGHT.
SNOW LEVELS WILL GENERALLY RANGE FROM 2500-3500 FEET AT NIGHT AND
5000-6000 FEET DURING THE DAY...SO A MIX OF RAIN AND SNOW CAN BE
EXPECTED IN THE MOUNTAIN ZONES.  SMITH

&&

.AVIATION...12Z TAFS AND 08Z TWEBS...TAFS HAVE BEEN A CHALLENGE THIS
MORNING AS CIGS AND VSBYS ARE FLUCTUATING FROM LIFR TO MVFR.  THIS
IS DUE TO THE INCREASING MID LEVEL CLOUDS THAT ARE HELPING TO STIR
UP THE LOW LEVELS OF THE ATMOSPHERE.  WILL KEEP CONDITIONS PRIMARILY
LIFR AT KALW AND KPDT AND OCCASIONAL IFR THROUGH 18Z. AT KPSC AND
KYKM...CONDITIONS WILL PRIMARILY BE IFR AND OCCASIONAL MVFR THROUGH
18Z.  NO FOG AND LOW CLOUDS ARE EXPECTED THIS MORNING AT KRDM.
AFTER 18Z...ONLY MID LEVEL CLOUDS ARE EXPECTED IN ALL TAF SITES.  DO
NOT EXPECT STRATUS AND FOG TO LINGER IN TWEB ROUTES AFTER 18Z AS
WELL.  SMITH

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  55  39  52  37 /  10  20  30   0
ALW  57  40  54  39 /  10  20  30   0
PSC  61  37  57  35 /  10  20  20   0
YKM  54  35  55  34 /  10  20  30   0
HRI  58  38  56  34 /  10  20  20   0
ELN  50  33  52  32 /  10  20  30   0
RDM  58  33  55  31 /  10  20  20  10
LGD  45  35  53  35 /  10  20  20  10
GCD  47  34  53  31 /  10  20  20  10
DLS  56  37  55  36 /  10  30  30  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
&&

TI:GGG
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
76/85/85

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
440 AM PST SUN MAR 4 2007

ORZ041-WAZ024-501-502-026>030-ORZ042>044-049-050-501>506-051230-
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-
440 AM PST SUN MAR 4 2007

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

.DAY ONE...TODAY AND TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

PATCHY FOG AND FREEZING FOG WILL BE OVER THE COLUMBIA BASIN AND
ADJACENT VALLEYS...CLE ELM TO EASTON...AND PARTS OF THE OCHOCO-JOHN
DAY HIGHLANDS INCLUDING LONG CREEK AND SENECA DURING THE MORNING.
VISIBILITY MAY CHANGE RAPIDLY...DROPPING BELOW 1/2 MILE AT TIMES.
THE LOWEST VISIBILITY WILL BE IN THE FOOTHILLS OF THE BLUES BETWEEN
1500 AND 2000 FEET.  A WARM FRONT WILL BRUSH THE CASCADES THIS
AFTERNOON WITH MOST OF THE PRECIPITATION REMAINING WEST...BUT SOME
RAIN WILL SLOP OVER THE CREST. A COLD FRONT WILL MOVE THROUGH
TONIGHT.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

A SERIES OF WEATHER SYSTEMS WILL BRING A CHANCE OF RAIN AND
MOUNTAIN SNOW EVERY DAY EXCEPT MONDAY NIGHT-TUESDAY. SNOW LEVELS
WILL BE 4500-6500 FEET DURING THE DAY AND DROP TO 2000-4000 FEET AT
NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED AT THIS TIME.

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.