Area Forecast Discussion
Issued by NWS Pendleton, OR

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000
FXUS66 KPDT 060514
AFDPDT

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PENDLETON OR
914 PM PST THU MAR 5 2015

UPDATED AVIATION DISCUSSION

.SHORT TERM...HIGH PRESSURE WILL DOMINATE THE WEATHER PATTERN
THROUGH THE WEEKEND. BASED UPON TODAYS HIGH TEMPERATURES AND
EXPECTED WARMING FOR FRIDAY I TWEAKED THE OVERNIGHT LOW TEMPERATURES
SLIGHTLY AND UPDATED THE FORECASTED HIGH TEMPERATURES FOR FRIDAY.
ALSO INCLUDED A NEAR RECORD HIGH HEADLINE FOR CENTRAL OREGON. REST
OF FORECAST REMAINS UNCHANGED.

.AVIATION...06Z TAFS...VFR CONDITIONS WILL REMAIN FOR THE NEXT 24
HOURS. THIN CIRRUS CLOUDS WILL CONTINUE OVER THE AREA RESULTING IN
SCT TO BKN CEILINGS AROUND 200. WINDS WILL REMAIN LESS THAN 10 KTS.

&&

.PREV DISC... /ISSUED 230 PM PST THU MAR 5 2015/

SHORT TERM...TONIGHT THROUGH SUNDAY. AN UPPER LEVEL RIDGE WILL
REMAIN OVER THE REGION THROUGH THE WEEKEND. THIS WILL CONTINUE THE
TREND OF DRY WEATHER FOR SEVERAL MORE DAYS. HIGH LEVEL CLOUDS WILL
BE MOVING THROUGH AT TIMES SO EXPECTING CLEAR TO PARTLY CLOUDY
SKIES. HIGH TEMPERATURES WILL REMAIN 5-10 DEGREES ABOVE NORMAL WITH
50S TO LOWER 60S LIKELY. A DRY AIRMASS WILL ALLOW FOR LARGE TEMP
FALLS AT NIGHT WITH LOWS INTO THE 20S AND 30S. MOST LOCATIONS WILL
CONTINUE TO SEE LIGHT WINDS THROUGH THE PERIOD. 94

LONG TERM...SUNDAY NIGHT THROUGH THURSDAY...MODELS ARE IN BETTER
AGREEMENT TODAY ABOUT THE LONG TERM PERIOD. A STRONG RIDGE WILL
REMAIN OVER THE PACIFIC NORTHWEST THROUGH MONDAY EVENING. THIS WILL
KEEP FAIR AND DRY WEATHER OVER THE AREA. TEMPERATURES WILL CONTINUE
TO BE WELL ABOVE NORMAL WITH HIGHS IN THE UPPER 50S AND 60S AND LOWS
MAINLY IN THE MID 30S TO MID 40S. LATE TUESDAY NIGHT A SYSTEM WILL
BEGIN MOVING ASHORE AND WILL SHOVE THE RIDGE OFF TO THE EAST TUESDAY
AND TUESDAY NIGHT. A FRONT WILL MOVE INTO THE AREA LATE TUESDAY
NIGHT AND WEDNESDAY WITH A SLIGHT CHANCE OF RAIN IN THE LOWER
ELEVATIONS AND A CHANCE OF RAIN IN THE MOUNTAINS. WEDNESDAY NIGHT
AFTER THE FRONT PASSES, AN UPPER LOW WILL MOVE TO THE COASTLINE. THE
GFS WEAKENS THE LOW INTO A WAVE AND MOVES IT THROUGH THE AREA
THURSDAY WHILE THE ECMWF KEEPS THE LOW INTACT AND MOVES SOUTH TO
NEAR SAN FRANCISCO. THE GFS SOLUTION WOULD KEEP RAIN GOING THROUGH
THURSDAY WHILE THE ECMWF SOLUTION WOULD TAPER THE RAIN OFF TO
SHOWERS WEDNESDAY NIGHT AND GIVE US A DRY THURSDAY. FOR NOW HAVE
LEANED TOWARDS THE GFS SOLUTION AND HAVE A SLIGHT CHANCE OF RAIN IN
THE LOWER ELEVATIONS AND A CHANCE OF RAIN IN THE MOUNTAINS THROUGH
THURSDAY. SNOW LEVELS WILL BE MAINLY AT 6000-7000 FEET TUESDAY NIGHT
THROUGH WEDNESDAY NIGHT THEN DROP TO 5000-6000 FEET THURSDAY SO DO
NOT FORESEE MUCH IN THE WAY OF SNOW. TEMPERATURES TUESDAY WILL COOL
TO THE MID 50S TO MID 60S THEN TO THE 50S AND LOWER 60S WEDNESDAY
AND THURSDAY. PERRY



&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  31  62  35  60 /   0   0   0   0
ALW  36  62  39  60 /   0   0   0   0
PSC  28  62  32  63 /   0   0   0   0
YKM  29  61  33  62 /   0   0   0   0
HRI  28  62  33  62 /   0   0   0   0
ELN  31  61  32  62 /   0   0   0   0
RDM  22  67  26  64 /   0   0   0   0
LGD  30  60  30  62 /   0   0   0   0
GCD  30  60  26  61 /   0   0   0   0
DLS  31  65  37  66 /   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

$$

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