965 
FXUS66 KPDT 082032
AFDPDT

Area Forecast Discussion
National Weather Service Pendleton OR
132 PM PDT Fri Oct 8 2021

.SHORT TERM...Tonight through Sunday...The upper level trough over 
the region will push to the east overnight with a temporary ridge of 
high pressure building in from the west. This will provide clearing 
skies with showers over the eastern mountains ending this evening. 
The upper portion of the John Day Basin could see freezing 
temperatures overnight so a freeze warning is in effect. Warm and 
dry conditions will prevail on Saturday. Then the next weather 
system will arrive Sunday as an upper level trough approaches from 
the Gulf of Alaska. This will push a cold front across the forecast 
area Sunday morning with some light precipitation followed by breezy 
to windy winds through the evening. Tis the season for blowing dust 
due to many fields recently being plowed and planted so blowing dust 
could be an issue Sunday afternoon through evening. Temperatures 
will cool Sunday as a result of the cold frontal passage.  

.LONG TERM...Monday through Friday...Cooler conditions and showers 
Sunday night could leave a light dusting of snow above 4000 feet 
with some showers lingering over the mountains Monday coming to and 
end by evening. Departing system will give way to a temporary ridge 
of high pressure Tuesday before another weather system impacts the 
area Wednesday with a weak cold frontal passage. This system looks 
to be lacking in precipitation other than a few showers over the 
mountains. It will produce some breezy westerly winds. After that 
models are indicating a dry westerly flow over the region Thursday 
and Friday with slightly warmer temperatures. 
. 


&&

.AVIATION...18Z TAFs...VFR conditions are expected for the next 24 
hours. A few showers will continue through this afternoon from the 
Blue Mountains eastward but should not affect ALW or PDT. Most TAF 
sites will have FEW-SCT clouds at 7K-10K feet AGL today then skies 
will clear this evening and overnight. Winds will remain below 10 
kts aside from DLS which will have northwest winds of 10-15 kts with 
gusts to 20 kts this afternoon. 83


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  36  65  47  61 /   0   0   0  40 
ALW  40  66  48  63 /   0   0   0  40 
PSC  40  67  52  65 /   0   0  10  20 
YKM  35  65  43  59 /   0   0  10  10 
HRI  37  67  48  65 /   0   0   0  20 
ELN  37  61  42  52 /   0   0  10  10 
RDM  27  65  36  57 /   0   0   0  10 
LGD  34  61  40  55 /  20   0   0  40 
GCD  31  62  38  57 /   0   0   0  30 
DLS  42  67  50  60 /   0   0   0  10 

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...Freeze Warning from 2 AM to 9 AM PDT Saturday for ORZ505.

WA...None.
&&

$$

SHORT TERM...91
LONG TERM....91
AVIATION...83