166 
FXUS66 KPDT 102126
AFDPDT

Area Forecast Discussion
National Weather Service Pendleton OR
226 PM PDT Wed Jul 10 2019

.SHORT TERM... Today through Sunday Night...Rather benign weather
is expected with near seasonal temperatures and mostly dry 
conditions.

For the rest of today, expect scattered to overcast high and mid 
level clouds to linger as southwesterly mid level flow continues. 
Showers have persisted much of the day across portions of western 
Washington. Some of this moisture will likely crest the Washington
Cascades, with light rain likely over their east slopes. Other 
isolated shower activity is possible over the Blue and Wallowa 
Mountains of northeast Oregon and far southeast Washington. This 
activity will diminish quickly around sunset with loss of daytime 
heating.

For Thursday and Friday we will remain in a generally unchanged 
weather pattern with broad strong ridging to the south and a 
trough centered off the Pacific Coast. This will place the Pacific
Northwest within a persistent southwesterly flow scenario, 
favoring high temperatures near to just slightly below seasonal 
norms (generally in the mid 80s to lower 90s lower elevations and 
70s mountains). and a very low chance of showers and a stray storm
across the Blues and Wallowas of Northwest Oregon/southeast 
Washington.
79/Austin


.LONG TERM...
Saturday through Wednesday...Fairly good model consensus for the 
period with ridging over the central US stretching back towards 
the desert southwest as the Four Corners' high continues to build.
In addition, trough will likely remain just off the PacNW coast, 
keeping the region under continued southwest flow aloft. 
Shortwaves will rotate around the base of the trough into the 
PacNW and could fire off showers and possibly even a few storms 
but models do differ on timing of these systems. The best 
potential looks to be Saturday and Sunday with better instability 
and lift as a stronger disturbance works onshore. Lowered heights 
aloft with the trough proximity will help keep temps near to 
slightly below average for this time of year. Saturday will still 
be quite warm with highs in the mid 80s to mid 90s but will lower 
down into the upper 70s to near 90 from Sunday on. Typical 
afternoon/evening breezes expected through the Cascade gaps and 
passes, especially the Columbia Gorge and Kittitas Valley, with a 
thermal trough over eastern OR/WA. 84

&&

.AVIATION...00Z TAFs...
VFR conditions with continued mid to high level cloudiness with 
bases fluctuating between 6-10kft. A disturbance moving through 
will bring a few showers and possibly isolated storms through 
evening, mainly over the mountains, but don't have enough 
confidence to include in any terminals. The best potential would 
be near PDT and ALW later this afternoon into early evening. 
Westerly winds will pick up to around 8-15kts with higher gusts 
possible this afternoon and evening, especially at DLS. 84


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  58  85  58  88 /  10   0   0   0 
ALW  63  89  63  92 /  10   0   0   0 
PSC  65  90  64  93 /  10   0   0   0 
YKM  60  87  58  90 /  10   0   0   0 
HRI  62  90  62  93 /  10   0   0   0 
ELN  58  80  57  84 /  10   0   0   0 
RDM  53  83  53  86 /  10   0   0   0 
LGD  58  83  59  86 /  20  20   0  10 
GCD  56  88  56  92 /  10  10   0   0 
DLS  64  84  62  88 /  10   0   0   0 

&&

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

$$

79/84/84