Red Flag Warning 3, NWS Pendleton, OR

000 
WWUS86 KPDT 032304
RFWPDT

RED FLAG WARNING
NATIONAL WEATHER SERVICE PENDLETON OR
404 PM PDT FRI AUG 3 2007

ORZ631-040400-
/O.CON.KPDT.FW.W.0003.000000T0000Z-070804T0400Z/
LOWER COLUMBIA BASIN OF OREGON-
404 PM PDT FRI AUG 3 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING.

THIS RED FLAG WARNING IS ONLY FOR THE OREGON PORTION OF ZONE 631.
THE WASHINGTON PORTION OF ZONE 631 IS NOT INCLUDED AT THIS TIME.

SUSTAINED WINDS OF 10 TO 20 MPH IN COMBINATION WITH HUMIDITY
VALUES BETWEEN 10 AND 20 PERCENT WILL OCCUR FOR SEVERAL HOURS
FROM LATE THIS AFTERNOON UNTIL JUST AFTER SUNSET THIS EVENING.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR
WEB SITE AT WWW.WEATHER.GOV/PENDLETON.

$$

000 
WWUS86 KPDT 040048
RFWPDT

RED FLAG WARNING
NATIONAL WEATHER SERVICE PENDLETON OR
548 PM PDT FRI AUG 3 2007

WAZ631-675-040400-
/O.EXA.KPDT.FW.W.0003.000000T0000Z-070804T0400Z/
LOWER COLUMBIA BASIN OF WASHINGTON-
EASTERN WASHINGTON SOUTHERN COLUMBIA BASIN-
548 PM PDT FRI AUG 3 2007

...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT THIS EVENING...

THE NATIONAL WEATHER SERVICE IN PENDLETON HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 9 PM PDT THIS EVENING. 

SUSTAINED WINDS OF 10 TO 20 MPH WITH HIGHER GUSTS IN COMBINATION
WITH HUMIDITY VALUES BETWEEN 10 AND 20 PERCENT WILL OCCUR THROUGH
MID EVENING. THE MOST DANGEROUS CONDITIONS WILL OCCUR ALONG THE
COLUMBIA RIVER NEAR HERMISTON AND UMATILLA...AND FROM THE HANFORD
AND PASCO AREAS EASTWARD.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR
WEB SITE AT WWW.WEATHER.GOV/PENDLETON.

$$

ORZ631-040400-
/O.CON.KPDT.FW.W.0003.000000T0000Z-070804T0400Z/
LOWER COLUMBIA BASIN OF OREGON-
548 PM PDT FRI AUG 3 2007

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

A RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING.

SUSTAINED WINDS OF 10 TO 20 MPH IN COMBINATION WITH HUMIDITY
VALUES BETWEEN 10 AND 20 PERCENT WILL OCCUR THROUGH MID EVENING
WITH THE MOST DANGEROUS CONDITIONS EAST OF HIGHWAY 97.

A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS
ARE EITHER OCCURRING NOW...OR WILL SHORTLY. A COMBINATION OF
STRONG WINDS AND LOW RELATIVE HUMIDITY WILL CREATE EXPLOSIVE FIRE
GROWTH POTENTIAL. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR
WEB SITE AT WWW.WEATHER.GOV/PENDLETON.

$$
78

000 
WWUS86 KPDT 040358
RFWPDT

RED FLAG WARNING
NATIONAL WEATHER SERVICE PENDLETON OR
858 PM PDT FRI AUG 3 2007

ORZ631-WAZ631-675-040500-
/O.EXP.KPDT.FW.W.0003.000000T0000Z-070804T0400Z/
LOWER COLUMBIA BASIN OF OREGON-LOWER COLUMBIA BASIN OF WASHINGTON-
EASTERN WASHINGTON SOUTHERN COLUMBIA BASIN-
858 PM PDT FRI AUG 3 2007

...RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING...

THE RED FLAG WARNING WILL EXPIRE AT 9 PM PDT THIS EVENING. 

WINDS ARE SLOWLY DIMINISHING AND RELATIVE HUMIDITIES ARE
INCREASING. THUS THE RED FLAG WARNING WILL BE ALLOWED TO EXPIRE AT
9 PM PDT.

$$

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
840 AM PDT FRI AUG 3 2007

.DISCUSSION...REST OF TODAY...A PUSH OF MARINE AIR CROSSED THE
INTERIOR PACIFIC NORTHWEST OVERNIGHT.  WINDY CONDITIONS IN THE
COLUMBIA RIVER GORGE AND THE KITTITAS VALLEY WILL DEVELOP THIS
AFTERNOON AND EVENING...ALONG WITH BREEZY CONDITIONS IN PORTIONS OF
THE COLUMBIA BASIN.  WINDS WILL BE STRONGER IN THE COLUMBIA BASIN
SOUTH OF THE HORSE HEAVEN HILLS WHERE WESTERLY MOMENTUM EXITS THE
COLUMBIA RIVER GORGE.  THESE WINDS COUPLED WITH LOW RELATIVE
HUMIDITY  HAS PROMPTED THE ISSUANCE OF A RED FLAG WARNING FOR
DANGEROUS FIRE CONDITIONS FOR THE OREGON PORTION OF THE COLUMBIA
BASIN.  THESE CONDITIONS INCLUDE WIND WITH LOW RELATIVE HUMIDITY
EXACERBATED BY MODERATE HAINES VALUES (THE HAINES INDEX IS A MEASURE
OF A DRY UNSTABLE AIR MASS).  A RED FLAG WARNING PRODUCT PDXRFWPDT
WILL BE ISSUED SHORTLY.  ALSO WITH THE MORNING UPDATE...SKY COVER
HAS BEEN REDUCED FOR THIS AFTERNOON AND THE SLIGHT RISK OF
THUNDERSTORMS HAS BEEN REMOVED FROM WALLOWA COUNTY...AS THE PUSH OF
MARINE AIR HAS CROSSED THE AREA RESULTING IN AN AIR MASS TOO STABLE
FOR THUNDERSTORMS.  MORNING NAM MODEL SEEMS TO HAVE A GOOD HANDLE ON
THE SITUATION SHOWING SOME LOW LEVEL CONVERGENCE OVER THE WALLOWA
AND ELKHORN MOUNTAIN REGION THIS MORNING...BUT MOVING IT EAST BY
AFTERNOON.  WITH THE COOLER MARINE AIR TODAY...TEMPERATURES IN THE
COLUMBIA BASIN WILL JUST BARELY REACH ABOVE 90 FOR SOME LOCATIONS BY
LATE THIS AFTERNOON. 80

&&

.PREV DISCUSSION... /ISSUED 230 AM PDT FRI AUG 3 2007/

SHORT TERM...TODAY THROUGH SATURDAY NIGHT...A MARINE PUSH HAS
BROUGHT COOLER AND MORE MOIST AIR INTO THE COLUMBIA BASIN OVERNIGHT.
BREEZY WINDS ASSOCIATED WITH THE MARINE PUSH WILL CONTINUE TODAY
ACROSS THE COLUMBIA BASIN. THE PRESSURE GRADIENT AND ASSOCIATED
WINDS WILL INCREASE THIS AFTERNOON WITH THE STRONGEST WINDS IN THE
KITTITAS VALLEY AND COLUMBIA RIVER GORGE...SPREADING SOUTH OF THE
HORSE HEAVEN HILLS.

A TROUGH WILL REMAIN NEAR THE COAST THROUGH SATURDAY NIGHT WITH
OCCASIONAL WAVES MOVING THROUGH EASTERN WASHINGTON AND OREGON. AS
THESE WAVES MOVE THROUGH TONIGHT AND SATURDAY AFTERNOON...THE CROSS
CASCADE PRESSURE GRADIENT AND MARINE PUSH WILL STRENGTHEN...
INCREASING THE WINDS. COOLER AIR ALOFT ASSOCIATED WITH THE TROUGH
WILL KEEP TEMPERATURES ABOUT 10 DEGREES COOLER THAN YESTERDAY. NAM
MODEL KEEPS SOME INSTABILITY LINGERING OVER EXTREME NORTHEAST OREGON
TODAY. THE GFS SHOWS COOLER AND MORE STABLE AIR EVEN OVER WALLOWA
COUNTY. DECIDED A FEW THUNDERSTORMS MAY DEVELOP OVER WALLOWA COUNTY
THIS AFTERNOON IF THE NAM IS CORRECT. NOT VERY CONFIDENT IN
THUNDERSTORM DEVELOPMENT...BUT THE IS STILL SOME CLOUDS LINGERING
OVER THIS AREA ON SATELLITE AND AFTERNOON HEATING MAY TRIGGER ONE OR
TWO. BY SATURDAY MORE STABLE AIR WILL BE OVER THE AREA AND DO NOT
EXPECT ANY CONVECTION.  COONFIELD

LONG TERM...SUNDAY THROUGH THURSDAY.  A SHORTWAVE TROUGH MOVING
EAST OF THE CASCADES ON SUNDAY WILL BRING A SLIGHT CHANCE OF SHOWERS
AND THUNDERSTORMS OVER PORTIONS OF CENTRAL AND EASTERN OREGON.  THE
INSTABILITY IS MARGINAL AND MOISTURE IS LIMITED...SO CANNOT GET TOO
EXCITED ABOUT ANYTHING MORE THAN A SLIGHT CHANCE.  BREEZY WINDS ARE
POSSIBLE IN THE EASTERN COLUMBIA RIVER GORGE AND THE KITTITAS VALLEY
WITH THE PASSAGE OF THE TROUGH. FOR THE REMAINDER OF THE
PERIOD...WA/OR WILL BE UNDER A WEAK CYCLONIC FLOW ALOFT.  THERE WILL
BE A FEW DISTURBANCES THAT WILL BRING A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS OVER THE HIGHER MOUNTAINS.  TEMPERATURES WILL CHANGE
LITTLE EACH DAY...AND AFTERNOON TEMPERATURES WILL MAINLY BE IN THE
UPPER 70S TO UPPER 80S.

AVIATION...VFR CONDITIONS WITH JUST A FEW SCATTERED MID LEVEL
CLOUDS EXPECTED THROUGH 12Z SATURDAY. IT WILL BE BREEZY AT KDLS WITH
WEST WINDS GUSTING TO 20-25KT AT TIMES ESPECIALLY FRIDAY AFTERNOON.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  87  56  84  57 /  10  10  10  10
ALW  89  57  83  61 /  10  10  10  10
PSC  93  57  87  58 /  10   0  10  10
YKM  87  54  85  56 /  10   0  10  10
HRI  90  56  86  57 /  10   0  10  10
ELN  79  56  82  57 /  10  10  10  10
RDM  85  44  85  47 /  10  10  10  10
LGD  89  52  82  53 /  10  10  10  10
GCD  90  49  85  51 /  10  10  10  10
DLS  82  58  84  61 /  10   0  10  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...RED FLAG WARNING FROM NOON TODAY TO 9 PM PDT THIS EVENING FOR
     ORZ631.

WA...NONE.
&&

TI:GGG
FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON
80

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
530 AM PDT FRI AUG 3 2007

ORZ041-WAZ024-501-502-026>030-ORZ042>044-049-050-501>506-041215-
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-
530 AM PDT FRI AUG 3 2007

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

.DAY ONE...TODAY AND TONIGHT

THUNDERSTORMS
     GRANDE RONDE VALLEY, WALLOWA COUNTY

A WEAK COLD FRONT WILL BRING COOLER TEMPERATURES TO EASTERN
WASHINGTON AND OREGON TODAY. A FEW THUNDERSTORMS MAY DEVELOP IN THE
AFTERNOON AND EARLY EVENING IN THE EASTERN GRANDE RONDE VALLEY AND
WALLOWA COUNTY.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

TEMPERATURES WILL REMAIN NEAR NORMAL. ISOLATED THUNDERSTORMS MAY
DEVELOP OVER CENTRAL TO NORTHEAST OREGON SUNDAY AFTERNOON AND
EVENING. A FEW THUNDERSTORMS ARE POSSIBLE IN THE NORTHEAST OREGON
MOUNTAINS TUESDAY AND WEDNESDAY.

.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/PDT/CURRENTHAZARDS/HWO.HTML

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