Mitchell, Oregon Weather Forecast Discussion

761
FXUS66 KPDT 221130
AFDPDT
Area Forecast Discussion
National Weather Service Pendleton OR
430 AM PDT Mon Sep 22 2025
.AVIATION...
Post frontal high pressure will lead to light boundary layer
winds and VFR flight categories for area terminals over the next
18-24 hours. Expect winds to be light and variable (under 12
knots) and terrain driven.
&&
.PREV DISCUSSION... /issued 153 AM PDT Mon Sep 22 2025/
DISCUSSION...Clearing has taken place over the forecast area early
this morning after the passage of a cold front. Temperatures have
plummeted as a result, with widespread lows in the 40s and even 30s
across our elevated valleys. Confidence was not high enough in
widespread freezing temperatures for any of our non-mountain zones
eligible for Freeze Warnings, but isolated pockets of freezing
temperatures may occur (confidence 40%) in central Oregon, the Bear
Valley, and the Wallowa Valley.
Ridging will then build behind yesterday`s front for most of the
work week. High temps will slowly build back into the 80s, with
chilly overnights in the 40s expected as clear skies and light winds
enable efficient nighttime cooling. Models generally don`t introduce
PoPs of any kind until Friday, when a weak shortwave to our north
looks to flatten our ridge just a tad, which is then followed by a
weak southwesterly flow pattern heading into next weekend, at least
according to the consensus of ensemble guidance as of now. Precip
looks to be limited to the Washington Cascades however, and looks to
be fairly minimal in the absence of a more defined synoptic feature.
Otherwise, expect pleasant daytime conditions for at least the
duration of the upcoming work week. Evans/74
AVIATION...VFR conditions currently across all sites,
which will stay the course through the period. Clear skies and low
winds below 10 kts will persist through the period as high pressure
builds across the region. 75
&&
.PRELIMINARY POINT TEMPS/POPS...
PDT  47  82  50  85 /   0   0   0   0
ALW  51  81  56  86 /   0   0   0   0
PSC  44  81  47  84 /   0   0   0   0
YKM  48  80  50  86 /   0   0   0   0
HRI  45  81  48  85 /   0   0   0   0
ELN  43  79  46  84 /   0   0   0   0
RDM  38  87  41  89 /   0   0   0   0
LGD  42  81  47  86 /   0   0   0   0
GCD  45  85  47  89 /   0   0   0   0
DLS  51  84  54  89 /   0   0   0   0
&&
.PDT WATCHES/WARNINGS/ADVISORIES...
OR...None.
WA...None.
&&
$$
SHORT TERM...74
LONG TERM....74
AVIATION...71

NWS PDT Office Area Forecast Discussion