522 
FXUS66 KPDT 141617 AAA
AFDPDT

Area Forecast Discussion...Updated
National Weather Service Pendleton OR
917 AM PDT Wed Aug 14 2019

Updated aviation discussion

.SHORT TERM...Today and tonight...A flat ridge of high pressure will 
remain over the region providing mostly clear skies with only a few 
high cirrus clouds. Temperatures will be seasonable and winds will 
be light. Only made minor changes to temperatures, winds and sky 
conditions through tonight.

&&

.AVIATION...18Z TAFs. VFR conditions will continue through the 
period with SCT-BKN cirrus at times. Winds will be 10 kts or less, 
except KDLS increasing to 10-20 kts with higher gusts in the 
afternoon. Winds will decrease overnight.  Earle

&&

.PREV DISCUSSION... /issued 148 AM PDT Wed Aug 14 2019/ 

SHORT TERM...Today through Friday...Generally quiet weather 
expected through the period. Passing cirrus today under westerly 
flow that will turn more north to northwesterly tomorrow into 
Friday. A couple of short-waves will ride the upper-level flow down
through the region; one tomorrow and another weaker one Friday 
into Saturday. A slight chance for isolated showers along the 
Cascade crest and northeast mountains tomorrow with just an 
increase in clouds expected on Friday. Could be just enough 
instability for a storm or two over northeast mountains tomorrow. 
Temps will be warm again today with highs in the 80s to low 90s, 
but will cool a degree or two each day under the northerly flow, 
with highs on Friday in the upper 70s to upper 80s. Surface 
pressure gradient increases through Friday and could see locally 
breezy winds through the Cascade gaps, passes and the Gorge.

LONG TERM...Friday night through Wednesday. Dry conditions 
with near to slightly above normal temperatures through the extended 
period. Westerly flow will continue through Saturday. This will be 
followed by southwest flow through Tuesday as the upper high over 
the southwest builds slightly, while another upper low nears the 
northwest coast. Models indicate a trough over the area 
Tuesday/Wednesday, with the GFS showing a stronger front on 
Wednesday vs the other models, but still has little moisture across 
the forecast area. 93

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  89  61  84  58 /   0   0   0   0 
ALW  91  62  85  61 /   0   0   0   0 
PSC  91  64  89  62 /   0   0   0   0 
YKM  88  59  87  56 /   0   0   0   0 
HRI  91  61  88  60 /   0   0   0   0 
ELN  87  59  83  58 /   0   0  10   0 
RDM  88  52  84  47 /   0   0   0   0 
LGD  87  53  81  53 /   0   0  10  10 
GCD  87  56  81  53 /   0   0   0   0 
DLS  91  64  84  61 /   0   0   0   0 

&&

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

$$

91/81/81