000
FXUS66 KPDT 100936
AFDPDT

Area Forecast Discussion
National Weather Service Pendleton OR
236 AM PDT Fri Jul 10 2020

.SHORT TERM...Today through Sunday...The overnight shortwave that
brought some showers and thunderstorms to NE Oregon and SE
Washington will exit into Idaho leaving the forecast area under a
building ridge of high pressure today and mainly clear skies. The
ridge will persist into Saturday before a shortwave trough begins to
push a dry cold front through the region in the afternoon and
overnight period. Saturday will be a hot and dry day with increasing
winds in the afternoon and evening with breezy to windy conditions
persisting overnight. The front will usher in cooler conditions for
Sunday with some continued breezy conditions.

.LONG TERM...Monday through Thursday. The extended period will be
dominated by a dry west to northwest flow aloft. Expect clear to
partly cloudy skies. Temperatures will be close to seasonal levels
with highs in the 80s. No significant short waves or fronts moving
through so winds will be mostly diurnal with westerlies at 10-20kt
in the afternoon and evenings.


&&

.AVIATION....AVIATION...12z Tafs. Few-sct 040-070 today with winds 5-
15kt. Clr overnight with winds 5-10kt.


&&

.FIRE WEATHER...A dry cold frontal passage Saturday afternoon will
cause an increase in westerly winds along the east slopes of the
Cascades but not expecting critically low humidities along the east
slopes. However, these winds will spill out into the Lower Columbia
Basin and combine with low relative humidity to create a critical
time of low humidity and breezy to windy conditions through Saturday
evening. A Fire Weather Watch will be issued as part of the morning
Fire Weather Forecast for this expected occurrence.


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  87  60  92  58 /   0   0   0   0
ALW  88  60  95  60 /   0   0   0   0
PSC  90  60  96  61 /   0   0   0   0
YKM  86  57  92  56 /   0   0   0   0
HRI  89  59  95  61 /   0   0   0   0
ELN  83  56  88  57 /   0   0   0  10
RDM  87  51  90  48 /   0   0   0   0
LGD  82  57  91  55 /   0   0   0   0
GCD  86  56  93  54 /   0   0   0   0
DLS  86  62  86  62 /   0   0   0   0

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
OR...Fire Weather Watch from Saturday afternoon through Saturday
     evening for ORZ641.

WA...Fire Weather Watch from Saturday afternoon through Saturday
     evening for WAZ641-675.

&&

$$

91/94/94

NWS PDT Office Area Forecast Discussion