High Wind Warning 6, NWS Pendleton, OR

000 
WWUS76 KPDT 150532
NPWPDT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
932 PM PST WED NOV 14 2007

...STRONG WINDS EXPECTED ACROSS THE GRANDE RONDE VALLEY...

.A LOW PRESSURE SYSTEM ALONG THE PACIFIC NORTHWEST COAST WILL
CONTINUE TO TIGHTEN PRESSURE GRADIENTS TONIGHT CREATING STRONG
WINDS ACROSS THE GRANDE RONDE VALLEY.

ORZ049-151200-
/O.CON.KPDT.HW.W.0006.000000T0000Z-071115T1200Z/
GRANDE RONDE VALLEY-
INCLUDING THE CITIES OF...LA GRANDE...ELGIN...UNION
932 PM PST WED NOV 14 2007

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 AM PST THURSDAY...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 AM PST THURSDAY. 

SOUTH TO SOUTHEAST SUSTAINED WINDS OF 40 MPH WITH GUSTS TO 60 MPH
ARE EXPECTED OVERNIGHT. THE STRONGEST WINDS WILL BE IN LADD AND
PYLES CANYONS AND AREAS FROM LA GRANDE SOUTHWARD.

A HIGH WIND WARNING IS ISSUED WHEN SUSTAINED WINDS ARE EXPECTED
TO BE 40 MPH OR GREATER WITH GUSTS IN EXCESS OF 58 MPH. THESE
WINDS CAN EASILY TOSS AROUND LOOSE OBJECTS AND DOWN LARGE TREE
LIMBS AND POWERLINES. THOSE VENTURING OUTDOORS SHOULD USE EXTREME
CAUTION AND BE ALERT FOR FLYING DEBRIS. DRIVING MAY ALSO BE
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. FOR ADDITIONAL
WEATHER INFORMATION...CHECK OUR WEB SITE AT
WWW.WEATHER.GOV/PENDLETON.

$$

000 
WWUS76 KPDT 151155
NPWPDT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
355 AM PST THU NOV 15 2007

...STRONG WINDS EXPECTED ACROSS THE SOUTHERN GRANDE RONDE VALLEY
EARLY THIS MORNING...

.A LOW PRESSURE SYSTEM ALONG THE PACIFIC NORTHWEST COAST WILL
CONTINUE TO KEEP TIGHT SURFACE PRESSURE GRADIENTS OVER THE
SOUTHERN GRANDE RONDE VALLEY CAUSING STRONG WINDS EARLY THIS
MORNING.

ORZ049-151500-
/O.EXT.KPDT.HW.W.0006.000000T0000Z-071115T1500Z/
GRANDE RONDE VALLEY-
INCLUDING THE CITIES OF...LA GRANDE...ELGIN...UNION
355 AM PST THU NOV 15 2007

...HIGH WIND WARNING NOW IN EFFECT UNTIL 7 AM PST THIS MORNING...

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 7 AM PST THIS
MORNING. 

SOUTH TO SOUTHEAST SUSTAINED WINDS OF 40 MPH WITH GUSTS TO 60 MPH
ARE EXPECTED EARLY THIS MORNING. THE STRONGEST WINDS WILL BE IN
LADD AND PYLES CANYONS AND AREAS FROM LA GRANDE SOUTHWARD.

A HIGH WIND WARNING IS ISSUED WHEN SUSTAINED WINDS ARE EXPECTED
TO BE 40 MPH OR GREATER WITH GUSTS IN EXCESS OF 58 MPH. THESE
WINDS CAN EASILY TOSS AROUND LOOSE OBJECTS AND DOWN LARGE TREE
LIMBS AND POWER LINES. THOSE VENTURING OUTDOORS SHOULD USE EXTREME
CAUTION AND BE ALERT FOR FLYING DEBRIS. DRIVING MAY ALSO BE
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. FOR ADDITIONAL
WEATHER INFORMATION...CHECK OUR WEB SITE AT
WWW.WEATHER.GOV/PENDLETON.

$$

000 
WWUS76 KPDT 151406
NPWPDT

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
606 AM PST THU NOV 15 2007

ORZ049-151515-
/O.CAN.KPDT.HW.W.0006.000000T0000Z-071115T1500Z/
GRANDE RONDE VALLEY-
INCLUDING THE CITIES OF...LA GRANDE...ELGIN...UNION
606 AM PST THU NOV 15 2007

...HIGH WIND WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN PENDLETON HAS CANCELLED THE HIGH
WIND WARNING. 

WINDS IN THE GRANDE RONDE VALLEY HAVE DIMINISHED EARLY THIS
MORNING TO BELOW WARNING LEVELS. HOWEVER BREEZY TO WINDY
CONDITIONS WILL PERSIST IN THE GRANDE RONDE VALLEY THROUGH THE
MORNING HOURS. THE LOCATIONS WITH THE HIGHEST WIND SPEEDS WILL BE
IN THE SOUTHERN GRANDE RONDE VALLEY NEAR LADD AND PYLES CANYONS
WHERE WINDS OF 20 TO 30 MPH WITH GUSTS TO 40 MPH ARE STILL
POSSIBLE THROUGH THE MORNING HOURS.

$$

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE PENDLETON OR
342 PM PST WED NOV 14 2007

UPDATED AVIATION DISCUSSION

.SHORT TERM...TONIGHT THROUGH FRIDAY NIGHT. LOW PRESSURE WAS NEARING
THE PACNW AND WAS TIGHTENING PRESSURE GRADIENTS CREATING WINDY
CONDITIONS AROUND LA GRANDE WHERE A WIND ADVISORY IS IN EFFECT INTO
THIS EVENING. THE LOW MOVES INTO CANADA HOWEVER CLOUDS AND MOISTURE
SPILL INTO PORTIONS OF THE AREA WITH SOME SHOWERS DEVELOPING
OVERNIGHT MAINLY ACROSS THE WESTERN PORTIONS OF THE REGION SUCH AS
ALONG AND NEAR THE CASCADES OVERNIGHT. ALSO -SN MAY MIX WITH
THE RA IN THE KITTITAS AND YAKIMA VALLEYS WHERE SOME COLD AIR MAY BE
TRAPPED. NO ACCUMULATION IS EXPECTED AT THIS TIME. THE SHOWERS MOVE
INTO THE REMAINDER OF THE REGION THURSDAY MORNING BEFORE SOME DRIER
AIR FILTERS INTO PORTIONS OF THE AREA IN THE AFTERNOON. HOWEVER
ANOTHER LOW PRESSURE SYSTEM IS RIGHT ON THE HEELS OF THE FIRST AND
MAY BRING ANOTHER ROUND OF SHOWERS THURSDAY NIGHT AND FRIDAY WITH
ANOTHER FRIDAY NIGHT.

.LONG TERM...SATURDAY THROUGH WEDNESDAY...SPECIFIC TIMING OF DETAILS
REMAINS QUESTIONABLE UNDER A WEST/SOUTHWESTERLY FLOW ALOFT. BOTH GFS
AND ECMWF SHOW A SYSTEM ON SATURDAY CROSSING THE PACNW, BUT GIVEN
SIGNIFICANT DAY TO DAY CONTINUITY REGARDING THE INTENSITY FROM THE
GFS, HAVE KEPT POPS TO A LOW END CHANCE. IN ADDITION, DPROG/DT FROM
THE GFS OVER THE LAST 5 DAYS WORTH OF RUNS, HAS SHOWN THE PRIMARY
STORM TRACK SHIFTING NORTHWARD OVER TIME. DECIDED TO KEEP POPS ON
THE LOWER SIDE OF CHANCE IN AREAS EAST OF THE CASCADE EAST SLOPES
FOR THE MORNING HOURS AND THEN HIGHER END OF CHANCE FOR THE
NORTHEAST MOUNTAINS UNDER A PRESUMED UPSLOPE FLOW. BOTH GFS AND
ECMWF SHOW A SECOND REINFORCING SLUG OF MOISTURE COMING OFF THE
PACIFIC SUNDAY NIGHT AND MONDAY. THIS TIME BOTH MODELS INDICATE SOME
FORM OF RAIN SHADOW, BUT AGAIN WITH THE LACK OF DAY TO DAY
CONSISTENCY, DID NOT FEEL COMFORTABLE REMOVING PRECIP WORDING
ALTOGETHER. COOLER AIR WILL BEGIN SEEPING INTO THE LOWER ELEVATIONS
SUCH THAT A RAIN SNOW MIX BECOMES POSSIBLE MONDAY NIGHT AT LOWER
ELEVATIONS WITH ALL SNOW EXPECTED ACROSS THE HIGHER TERRAIN.

ON TUESDAY, THE BROAD TROUGH THAT WAS CENTERED OVER THE GULF OF
ALASKA SHIFTS EASTWARD INTO CENTRAL CANADA. THIS ALLOWS HIGH
PRESSURE TO BUILD OFFSHORE AND PLACED THE REGION UNDER NORTHERLY
FLOW ALOFT. BOTH THE ECMWF AND A MAJORITY OF GFS ENSEMBLE MEMBERS
CURRENTLY SHOW AN INSIDE SLIDER DROPPING DOWN TO FORM A CLOSED LOW
CENTERED NEAR THE FOUR CORNERS REGION. THE ECMWF SHOWED THIS FEATURE
YESTERDAY AND CONTINUES TO BE MUCH STRONGER THAN THE GFS. FELT THIS
SCENARIO WAS PLAUSIBLE ENOUGH TO MAINTAIN PRECIP WORDING EVERYWHERE
EXCEPT THE LOWER COLUMBIA BASIN. THERE SHOULD BE ENOUGH DAYTIME
WARMING TO KEEP SNOW CONFINED TO THE HIGHER TERRAIN. COULD SEE SOME
IMPACTS CONTINUE ACROSS MUCH OF THE NORTHEASTERN MOUNTAINS UNDER A
NORTHERLY LOW AND MIDLEVEL FLOW PATTERN BEFORE SEEING A BREAK IN THE
ACTION WEDNESDAY AFTERNOON AND EVENING. TEMPERATURES UNDER THIS
NORTHERLY FLOW ARE LIKELY TO BE WELL BELOW SEASONAL NORMS. JBONK

&&

.AVIATION...VFR CONDITIONS GENERALLY EXPECTED FOR THE NEXT 24 HOURS.
MID-LEVEL DECK WILL REMAIN FOR TODAY. CIGS WILL LOWER TO BETWEEN 6
AND 8 KFT DURING THE OVERNIGHT HOURS WITH VCTY SHOWERS AT KRDM AND
KYKM. BEST POSSIBILITY FOR SHOWERS AT KDLS. KRDM AND KDLS LOOK TO
APPROACH MVFR TOMORROW MORNING AS THE COLD FRONT SLOWLY MOVES ACROSS
THE CASCADES. MID-LEVEL CLOUDS WILL REMAIN THROUGH 16/00Z WITH MOST
TAF LOCATIONS SEEING A BROKEN DECK. JBONK

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  40  53  41  56 /  10  20  40  50
ALW  38  55  43  57 /  10  20  40  50
PSC  32  56  40  59 /  10  10  20  30
YKM  32  55  36  55 /  40  30  30  30
HRI  33  55  38  57 /  10  10  20  30
ELN  30  49  36  53 /  40  30  30  40
RDM  34  57  38  57 /  30  20  30  60
LGD  35  52  39  53 /  10  20  40  60
GCD  37  53  40  58 /  10  20  30  60
DLS  37  55  42  56 /  40  20  40  50

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WIND ADVISORY UNTIL 8 PM PST THIS EVENING FOR ORZ049.

WA...NONE.
&&

TI:GGG
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
97/87/87

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
510 AM PST WED NOV 14 2007

ORZ041>044-049-050-501>506-WAZ024-026>030-501-502-151300-
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-
EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY-
YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-
FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON-
NORTHWEST BLUE MOUNTAINS-
EAST SLOPES OF THE CENTRAL CASCADES OF WASHINGTON-
EAST SLOPES OF THE SOUTHERN CASCADES OF WASHINGTON-
510 AM PST WED NOV 14 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.

HIGH PRESSURE WILL KEEP CONDITIONS DRY TODAY. CLOUD COVER WILL
INCREASE AHEAD OF THE NEXT WEATHER SYSTEM WHICH WILL MOVE INTO THE
AREA TONIGHT. THIS COLD FRONT WILL BRING A CHANCE OF PRECIPITATION
OVERNIGHT TO THE REGION.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

UNSETTLED WEATHER WITH FREQUENT WEATHER DISTURBANCES WILL CONTINUE
THROUGH THE WEEKEND AND INTO NEXT WEEK. THIS WILL BRING A CHANCE OF
PRECIPITATION TO THE REGION EACH DAY.

.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/PDT/CURRENTHAZARDS/HWO.HTML

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