Area forecast discussion 
National Weather Service Pendleton or 
234 am PDT Tuesday Jul 26 2016 


Short term...today through Thursday...a generally westerly flow 
with a series of weak waves embedded will continue over the area for 
the next few days. One wave is moving across the Washington Cascades 
at this time with some scattered higher clouds. As the wave crosses 
the area, there may be just enough lower moisture to squeeze out a 
shower over the Wallowa Mountains this morning and isolated 
thunderstorms in Wallowa County in the afternoon. Models all show 
moisture departing in the late afternoon, so thunderstorms there 
should end a few hours before Sundown. The rest of the area will be 
dry and sunny. The wave will keep pressure gradients tight along the 
Cascades today and tonight and the Kittitas Valley and Columbia 
Gorge will have west to northwest winds of 10 to 20 mph this morning 
and increase to 15 to 25 mph with higher gusts this afternoon and 
tonight. The rest of the area will have lighter winds though central 
Oregon and portions of the Columbia Basin will reach 10 to 15 mph 
this afternoon. As the wave departs tonight, the ridge over the west 
will rebound and give US a clear and dry night. On Wednesday another 
weak wave will cross the area but with little in the way of 
moisture, it doesn't appear it will even generate much in the way of 
clouds. Winds have a more modest increase compared to today with the 
Kittitas Valley and Columbia Gorge reaching 10 to 20 mph in the 
afternoon. Wednesday night and Thursday will be quiet with fair 
weather and clear skies with light winds. Temperatures will continue 
to be hot through the next few days with 90s and a few lower 100s in 
the lower elevations and 80s and lower 90s in the mountains. Lows 
will be in the upper 50s and 60s in the lower elevations and in the 
mid 40s to mid 50s in the mountains. Perry 


Long term...Thursday night through Monday...forecast area will be 
under a flat westerly flow Thursday night through early Saturday. 
Then an upper level trough of low pressure in the Gulf of Alaska 
will slide into western Canada over the weekend. This will usher in 
some cooler and breezy conditions through the weekend and into the 
first of next week but remain dry. 


&& 


Aviation...12z tafs...VFR conditions will persist across all taf 
sites for the next 24 hours. 


&& 


Preliminary point temps/pops... 
PDT 94 61 94 63 / 0 0 0 0 
alw 94 68 93 68 / 0 0 0 0 
psc 96 64 96 64 / 0 0 0 0 
ykm 97 66 98 66 / 0 0 0 0 
hri 95 64 97 64 / 0 0 0 0 
eln 92 60 93 62 / 0 0 0 0 
rdm 91 50 94 52 / 0 0 0 0 
lgd 92 55 91 57 / 10 0 0 0 
gcd 93 57 95 57 / 0 0 0 0 
dls 89 63 96 65 / 0 0 0 0 


&& 


PDT watches/warnings/advisories... 
or...none. 
Washington...none. 
&& 


$$ 


83/91/91 



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