Area Forecast Discussion
Issued by NWS Pendleton, OR

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FXUS66 KPDT 271612
AFDPDT

Area Forecast Discussion
National Weather Service Pendleton OR
911 AM PDT FRI MAY 27 2016

.SHORT TERM...Morning Update...An upper level low will remain over
British Columbia through at least tonight. The upper flow will
gradually turn from northwesterly to westerly through tonight.
Meanwhile the low level flow will remain westerly and onshore. Thus
temps today and tonight will run slightly below seasonal, and winds
will be breezy to locally windy into the evening. The best chances
of showers will be near the Cascade crest due to slop over from the
west side. There may also be a few stray showers over the northern
Blues and Wallowa county at times today. Otherwise conditions will
be dry through tonight. Overall the forecast package is on track
with updates being made to wind speeds, shower locations, sky cover
and high temps. 90

.LONG TERM...Previous Discussion...An upper low will move just north
of the area Sunday evening. There will likely be sufficient
instability over the far eastern mountains for a few showers and
thunderstorms ending by late in the evening. For the remainder of
the period a building upper ridge will result in a significant warm-
up next week. By Thursday high temperatures could reach the middle
90s in the lower elevations with 80s in the mountains. The warm
weather could continue on Friday. The GFS model hints at some minor
potential for isolated storms on Thursday and Friday but it may be
breaking down the ridge too quickly. For this forecast package
followed the ECMWF solution which holds onto the ridge until the
first part of next weekend. The only period of significant winds
will be Sunday evening with breezy to windy conditions in the lower
elevations.

&&

.AVIATION...Previous Discussion...12Z Tafs...VFR conditions will
prevail through the forecast period. Expect SCT-BKN mid and high
clouds and perhaps a few CU mainly over the mountains during the
afternoon. Winds will be sw-nw at 10-15KT except 20-30KT at KDLS and
15-25KT at KPDT this afternoon.

&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  65  43  69  49 /   0   0  10  10
ALW  65  46  69  50 /  10   0  10  10
PSC  72  46  72  47 /   0   0  10  10
YKM  70  42  72  47 /  10  10  10  10
HRI  70  44  72  46 /   0   0  10  10
ELN  63  44  69  47 /  10  10  10  10
RDM  63  32  68  39 /   0  10  10  10
LGD  61  36  64  42 /  10  10  10  10
GCD  64  37  68  41 /  10  10  10  10
DLS  66  47  73  52 /  10  10  10  10

&&

.PDT Watches/Warnings/Advisories...
OR...None.
WA...None.
&&

$$

90/78/91


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