Area Forecast Discussion
Issued by NWS Pendleton, OR

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FXUS66 KPDT 281749
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
949 AM PST SAT FEB 28 2015

.SHORT TERM...MORNING UPDATE...THE SYSTEM RESPONSIBLE FOR THE RAIN
AND SNOW ACROSS THE AREA FRIDAY AND OVERNIGHT CONTINUES TO MOVE
SOUTH THROUGH NEVADA. AS A RESULT, LINGERING SNOW SHOWERS OVER
DESCHUTES, CROOK AND GRANT COUNTIES ARE WINDING DOWN AND SHOULD BE
DONE BY NOON. WILL THEREFORE ALLOW THE WINTER WEATHER ADVISORY IN
THE OREGON CASCADE EAST SLOPES TO EXPIRE AT 10 AM. MEANWHILE COLD,
DRY MODIFIED ARCTIC AIR CONTINUES TO SPILL INTO THE REGION.
SUSTAINED WINDS OVER SOUTH-CENTRAL WASHINGTON ARE GENERALLY BREEZY
TO WINDY. GUSTS HAVE BEEN LOCALLY STRONG AND SOME BLOWING DUST HAS
BEEN OBSERVED. DID ISSUE A WIND ADVISORY FOR THE WASHINGTON LOWER
BASIN, THE YAKIMA VALLEY AND THE SIMCOE HIGHLANDS EARLIER DUE TO THE
CONTINUED POSSIBILITY OF THE STRONG LOCAL GUSTS TODAY. OTHER UPDATES
THIS MORNING INCLUDED ADJUSTMENTS TO SKY COVER, HIGH TEMPS AND
MORNING SHOWER COVERAGE. 90

.LONG TERM...PREVIOUS DISCUSSION...MONDAY NIGHT NORTHERLY FLOW ALOFT
WILL GIVE A CHANCE OF PRECIPITATION OF 2000-3000 FEET IN CENTRAL
OREGON SOUTH OF BEND AND IN EAST CENTRAL OREGON AND THE BLUE
MOUNTAINS AND THE WALLOWA MOUNTAINS. ON TUESDAY THE NORTHERLY FLOW
ALOFT CONTINUES BUT WITH A DRIER AIR MASS FOR DRY CONDITIONS
ALTHOUGH THE WALLOWA MOUNTAINS AND SUMMIT RIDGE IN FAR EAST WALLOWA
COUNTY MAY GET SCATTERED SNOW SHOWERS THROUGH TUESDAY AFTERNOON.
TUESDAY NIGHT ONWARD THROUGH FRIDAY NIGHT A MID/UPPER LEVEL RIDGE OF
HIGH PRESSURE BUILDS OVER THE INLAND PACIFIC NORTHWEST FOR DRY
CONDITIONS.

&&

.AVIATION...18Z TAFS. VFR CONDITIONS ARE EXPECTED OVER THE NEXT 24
HOURS. GUSTY NORTH WIND 15-20KTS WILL CONTINUE AT KPSC AND KYKM THRU
02Z WITH NORTH WIND 10-14KT ELSEWHERE. WINDS WILL DECREASE TO LESS
THAN 10 KTS AFTER 02Z.  CLOUDS WILL CONTINUE TO DECREASE ACROSS
OREGON TODAY WITH MOSTLY CLEAR SKIES REGIONWIDE AFTER 00Z. ML

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  44  23  42  25 /   0   0   0   0
ALW  45  24  42  29 /   0   0   0   0
PSC  53  19  47  23 /   0   0   0   0
YKM  52  22  46  26 /   0   0   0  10
HRI  50  20  46  23 /   0   0   0   0
ELN  52  20  47  25 /   0   0   0  10
RDM  41   8  44  21 /  20   0   0   0
LGD  43  15  40  23 /  10   0   0  10
GCD  42  10  41  21 /  20   0   0   0
DLS  53  24  47  31 /   0   0   0  10

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...WINTER WEATHER ADVISORY UNTIL 10 AM PST THIS MORNING ORZ509.

WA...WIND ADVISORY UNTIL 4 PM PST THIS AFTERNOON WAZ027-028-521.

&&

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

$$

90/99/93







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