Area Forecast Discussion
Issued by NWS Pendleton, OR

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000
FXUS66 KPDT 011729 AAA
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR...UPDATE
1028 AM PDT WED OCT 1 2014

UPDATED AVIATION DISCUSSION

.SHORT TERM...UPPER LEVEL RIDGE BUILDING OFFSHORE WITH A DRY
NORTHWEST FLOW OVER THE REGION TODAY. ONLY CLOUDS THIS MORNING ON
SATELLITE ARE UPSLOPE STRATOCUMULUS OVER THE CASCADES AND NORTHEAST
OREGON MOUNTAINS. LOW LEVEL INSTABILITY IS LESS THAN YESTERDAY AND
IS CAPPED OFF BY WARMING ALOFT. EXPECT SOME MINIMAL CUMULUS
DEVELOPMENT THIS AFTERNOON. TEMPERATURES MOSTLY IN THE 60S TO LOWER
70S AND WINDS MUCH LIGHTER THAN YESTERDAY.  94

.AVIATION...18Z TAFS... AN UPPER LEVEL RIDGE OVER THE AREA WILL LEAD
TO VFR CONDITIONS AT ALL TAF SITES THROUGH THE PERIOD. JUST A FEW
HIGH CIRRUS CLOUDS AOA 10K FEET AGL EXPECTED THIS AFTERNOON INTO
TONIGHT. WINDS EXPECTED TO FOLLOW TYPICAL DIURNAL TRENDS AND REMAIN
AOB 10 KTS...EXCEPT AT KDLS WHERE AFTERNOON WINDS WILL BE BTWN 15 TO
25 KTS. MURPHY/BIEDA

&&

.PREV DISC... /ISSUED 200 AM PDT WED OCT 1 2014/

SHORT TERM...TODAY THROUGH THURSDAY NIGHT. A DEPARTING LOW PRESSURE
SYSTEM WILL GIVE WAY TO A RIDGE OF HIGH PRESSURE WITH DRIER
CONDITIONS EXPECTED. HIGH TEMPERATURES SHOULD BE NEAR NORMAL TODAY
AND TOMORROW. A WEAKENING DISTURBANCE WILL APPROACH THE TWO STATE
AREA THURSDAY AND SPREAD SOME MID AND HIGH LEVEL CLOUDS TO THE
REGION. THE CLOUDS SHOULD MOVE EAST THURSDAY EVENING AND THE RIDGE
OF HIGH PRESSURE WILL CONTINUE TO INFLUENCE THE AREA WITH DRY
CONDITIONS OVERNIGHT.

LONG TERM...FRIDAY THROUGH WEDNESDAY...TRANQUIL PERIOD IS IN STORE
UNDER UPPER LEVEL RIDGE.  WEAK SHORT WAVES MOVING OVER TOP OF RIDGE
WILL GIVE A SMALL CHANCE FOR LIGHT RAIN IN THE CASCADES. WITH CLEAR
SKIES...LOW HUMIDITY...AND LIGHT WINDS...EXPECT FAIRLY WIDE DIURNAL
TEMPERATURE RANGE WITH AVERAGES ABOVE NORMAL.

AVIATION...12Z TAFS. VFR CONDITIONS PREVAILING WITH A FEW MID AND
HIGH LEVEL CLOUDS.  LIGHT WINDS EXCEPT FOR 15-25KT KDLS AFT 18-06Z.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  67  41  68  39 /   0   0   0   0
ALW  68  46  69  45 /   0   0   0   0
PSC  71  42  70  38 /   0   0   0   0
YKM  69  39  67  34 /   0   0   0   0
HRI  70  41  71  38 /   0   0   0   0
ELN  67  40  66  35 /   0   0   0   0
RDM  64  31  68  29 /   0   0   0   0
LGD  64  38  65  35 /   0   0   0   0
GCD  64  35  70  35 /  10   0   0   0
DLS  71  45  71  44 /   0   0   0   0

&&

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

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

$$

94/





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