Red Flag Warning 1, NWS Pendleton, OR

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
145 PM PDT SUN JUN 8 2014

.SHORT TERM...TONIGHT THROUGH WEDNESDAY...A WEAK TROUGH WILL MOVE
THROUGH WASHINGTON TONIGHT AND MONDAY. THIS WILL INCREASE THE
ONSHORE FLOW AND DEEPEN THE MARINE LAYER WEST OF THE CASCADES. AS A
RESULT THE CROSS CASCADES PRESSURE GRADIENTS WILL INCREASE AND
SPREAD BREEZY WINDS FARTHER INTO THE LOWER COLUMBIA BASIN TOMORROW
AFTERNOON AND EVENING. WINDS IN THE KITTITAS VALLEY WILL BE CLOSE TO
WIND ADVISORY CRITERIA. IT WILL ALSO RESULT IN ENOUGH OF AN INCREASE
IN RELATIVE HUMIDITY TO KEEP MOST OF THE AREA JUST ABOVE CRITICAL
FIRE WEATHER CONDITIONS EXCEPT IN FWZ 675 INCLUDING THE HANFORD AREA
(SEE FIRE WEATHER SECTION BELOW). A STRONGER TROUGH WILL MOVE
THROUGH WASHINGTON AND NORTHERN OREGON TUESDAY. IT WILL BECOME WINDY
ACROSS THE COLUMBIA BASIN AND BREEZY ELSEWHERE TUESDAY AFTERNOON AND
EVENING AS HIGHER WINDS ALOFT MIX TO THE SURFACE AND PRESSURE
GRADIENTS INCREASE AGAIN BEHIND THE TROUGH. SOME BLOWING DUST IS
POSSIBLE DUE TO WINDS AND DRY WEATHER. DRY AND MILD WEATHER IS
EXPECTED TUESDAY NIGHT AND WEDNESDAY AS A TRANSIENT RIDGE MOVES
ACROSS WASHINGTON AND OREGON.  COONFIELD

.LONG TERM...WEDNESDAY NIGHT THROUGH SUNDAY...MODELS IN FAIR
AGREEMENT WITH RESPECT TO UPPER LOW OFF THE COAST OF WASHINGTON
WEDNESDAY NIGHT.  THIS LOW WILL MOVE THROUGH THE AREA BY FRIDAY.
THERE ARE SOME TIMING DIFFERENCES BETWEEN THE MODELS WITH THE GFS A
LITTLE SLOWER THAN ECMWF AND THE CANADIAN MODELS. IN ADDITION...GFS
HAS SHOWN THE MOST INCONSISTENCY BETWEEN THE MODELS SO WILL SIDE
WITH AN ECMWF/CANADIAN SOLUTION. THE ATMOSPHERE WILL BE DRY THROUGH
THE MID/LOW LEVELS SO SHOWERS ARE GOING TO BE HARD TO COME BY
ESPECIALLY IN THE BASIN.  THE BEST CHANCE OF SHOWERS WILL BE ALONG
THE CASCADES AND NORTHEAST OREGON.  IN ADDITION...THERE IS SOME
MINOR INSTABILITY OVER NORTHEAST OREGON THURSDAY AND FRIDAY
AFTERNOON/EVENING SO COULD SEE AN ISOLATED THUNDERSTORM.  DRIER
NORTHWEST FLOW WILL DEVELOP IN THE WAKE OF THE AFOREMENTIONED SYSTEM
SATURDAY.  MODELS DIFFER SIGNIFICANTLY SUNDAY AS GFS CONTINUES WITH
W-NW FLOW WHILE ECMWF SHOWS AN IMPRESSIVE LOW MOVING INTO THE
PACIFIC NORTHWEST.  GIVEN THE INCONSISTENCIES WILL LEAN TOWARDS
CLIMATOLOGY FOR SUNDAY.  TEMPERATURES WILL GENERALLY BE NEAR NORMAL
THROUGH THE PERIOD.  EARLE

&&

.AVIATION...00Z TAFS...VFR CONDITIONS WILL CONTINUE THROUGH THE TAF
PERIOD.  WINDS WILL GENERALLY BE 10 TO 15 KTS...EXCEPT 15 TO 20 KTS
WITH STRONGER GUSTS KDLS. WINDS WILL DECREASE OVERNIGHT AND INCREASE
AGAIN TO 10-20 KTS BY LATE MORNING.  SMOKE FROM A WILDFIRE SOUTHWEST
OF KBDN MAY REDUCE VISIBILITIES OVERNIGHT IN THE KBDN AREA. EARLE

&&

..FIRE WEATHER...A MARINE PUSH WILL CAUSE WINDS TO INCREASE TOMORROW
AFTERNOON AND EVENING. THE STRONGEST WINDS AND LOWEST RELATIVE
HUMIDITY WILL BE ACROSS CENTRAL WASHINGTON. CONSEQUENTLY...ANY NEW
FIRES WILL EXPERIENCE RAPID SPREAD AND A RED FLAG WARNING IS BEING
ISSUED FOR THE EASTERN WASHINGTON SOUTHERN COLUMBIA BASIN.  COBB

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  56  83  50  80 /   0   0   0   0
ALW  61  83  55  79 /   0   0   0  10
PSC  58  88  53  83 /   0   0   0  10
YKM  58  82  52  79 /   0   0   0  10
HRI  57  86  52  82 /   0   0   0   0
ELN  57  79  51  78 /   0   0   0  10
RDM  43  80  36  77 /   0   0   0   0
LGD  50  80  45  75 /   0   0   0  10
GCD  49  82  46  77 /   0   0   0   0
DLS  61  81  52  78 /   0   0   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...RED FLAG WARNING FROM 2 PM TO 8 PM PDT MONDAY WAZ026>028-521.

&&

FOR ADDITIONAL WEATHER INFORMATION, CHECK OUR WEB SITE AT...
WWW.WEATHER.GOV/PENDLETON

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