Area Forecast Discussion
Issued by NWS Pendleton, OR

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000
FXUS66 KPDT 230959
AFDPDT

Area Forecast Discussion
National Weather Service Pendleton OR
259 AM PDT Mon Jul 23 2018

.SHORT TERM...Today through Wednesday Night...Clear skies
prevail early this morning across most areas, with just a
little cirrus across far southern sections of Central Oregon.
With a persistent ridge across the southwest CONUS and troughing
across the southwest Canadian provinces, west/southwest flow
aloft will persist through midweek. This will result in hot and
dry conditions for the interior Pacific Northwest. Monsoonal
moisture will try to nudge northward through Tuesday, but will
remain south of Central Oregon. Thus, do not expect any
thunderstorm activity, with a few cumulus buildups this afternoon
and once again Tuesday afternoon mainly south of Bend/Redmond.
Mid level moisture/instability will get pushed back to the south
Wednesday, with clear, hot and dry conditions area wide. At this
time, it does not look like temperatures will meet advisory
criteria, with highs in the upper 90s to around 100 degrees for
the lowest elevations today through Wednesday. Lows will be above
normal as well, with mainly upper 50s to mid 60s for the lower
elevations. Smoke from wildfires across southern Oregon/northern
California may affect central Oregon at least today/tonight, with
some minor visibility restrictions possible.


.LONG TERM...Thursday through Sunday...The latest 00Z model runs
agree in building a mid/upper level ridge over the western States,
which amplifies northward into the Pacific Northwest through the
weekend. Mid level wind flow pattern is not favorable for transport
of mid level monsoon or subtropical moisture into the region. As
such dry conditions are expected to persist through Sunday night.
High temperatures will be 6-10 degrees above normal each day.
High temperatures for the lowlands will be 92 to 103, warmest in the
Columbia Basin, with highs in the mid 70s to upper 80s in the
mountains. Morning low temperatures at lower elevations will be in
the mid 50s to upper 60s, with lows in the mountains and higher
valleys in the lower 40s to mid 50s.


&&

.AVIATION...12Z TAFs...VFR conditions will continue for the next 24
hours under mostly clear skies. Winds will be 10 knots or less.


&&

.PRELIMINARY POINT TEMPS/POPS...
PDT  95  62  96  62 /   0   0   0   0
ALW  97  64  97  64 /   0   0   0   0
PSC  97  61  99  63 /   0   0   0   0
YKM  94  61  96  62 /   0   0   0   0
HRI  99  61 100  62 /   0   0   0   0
ELN  94  58  96  59 /   0   0   0   0
RDM  95  54  96  54 /   0   0   0   0
LGD  92  55  93  54 /   0   0   0   0
GCD  95  59  95  58 /   0   0   0   0
DLS  98  63  98  64 /   0   0   0   0

&&

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

$$

80/99



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