Wind Advisory 13, NWS Pendleton, OR

753 
WWUS76 KPDT 240324
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
824 PM PDT Thu Apr 23 2026

WAZ026-240430-
/O.CAN.KPDT.WI.Y.0013.000000T0000Z-260424T0400Z/
Kittitas Valley-
Including the cities of Ellensburg and Thorp
824 PM PDT Thu Apr 23 2026

...WIND ADVISORY IS CANCELLED...

The threat has ended. Periods of 25-35 mph gusts still possible 
through the evening hours.

$$

MD

Area Forecast Discussion
National Weather Service Pendleton OR
1047 AM PDT Thu Apr 23 2026

.KEY MESSAGES...
1. Lingering mountain showers Thursday

2. Drier and cooler temperatures begin Thursday

3. Potential freeze Saturday morning

&&

.DISCUSSION...
Current radar shows no returns across the region this morning.
Ground observations from yesterday show plenty of rainfall occurred
across the region with some of the highest amounts occurring along
the foothills. Pendleton measured 0.63 inches for the 24 hour
period. A PNS statement was put out regarding the rainfall amounts.
Winds are still breezy for a few areas like the Gorge, Pendleton,
Yakima and Kittitas Valley with observations showing these areas
having sustained winds of 20-25 mph and gusts near 40 mph. These
will begin to taper off through the morning. The minor flooding for
the Umatilla at Gibbon has begun to recede with the latest water
height coming in at under 7 feet. This keeps the river in action
stage but below minor. It is forecasted to continue to decrease
dropping below action stage Friday morning.

Models show the upper level low to be off to the east of the region
and northwest flow aloft to be over the region. Models then show
that by mid-day another upper level low will clip the northeast
portion of the CWA bringing mountain showers to the Northern Blues
and across the Wallowas today with NBM showing amounts near 0.10
along the crests and 0.02 in the valley with 60-80% probabilities.
Snow levels will still be below 45500 feet so some light snow
accumulations at Tollgate and Ski Bluewood are likely with 30-50%
probabilities of seeing 0.10-0.5 inches.

After Thursday, models show continued northwest flow with drier and
cooler conditions. In house seasonal temperature comparisons show
that temperatures will be anywhere form 10 to 20 degrees below
seasonal average with this flow pattern. NBM shows temperatures to
be in the mid 50s through the weekend with isolated locations in the
Basin seeing low 60s with 50-70% confidence. By Monday, models show
a slight warming trend.

With the incoming cooler temperatures from the cold air aloft and
models showing the cold air mixing to the surface, NBM is showing
minimum temperatures to be hedging towards freezing overnight
temperatures. The coldest temperatures are expected to be Saturday
morning with NBM showing temperatures across the vast majority of
the region being at or below freezing. With that said, the potential
for freezing on Saturday is moderate/high with 60-90% confidence. 90

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...VFR conditions to
prevail through the period. An isolated shower or two may impact
site ALW late this afternoon in the early evening, with a PRO30
of light rain included in the TAF. Winds will be 12-17kts with
gusts up to 27kts at sites DLS/PDT/YKM/ALW into this evening,
with light winds developing overnight. All other sites will see
light winds prevail through the period. Lawhorn/82

&&

.Preliminary Point Temps/PoPs...
PDT  60  36  56  32 /  10  30   0   0
ALW  59  37  57  35 /  30  40  10   0
PSC  66  38  63  33 /  10  20   0   0
YKM  67  39  60  34 /   0  10   0   0
HRI  64  37  60  32 /   0  20   0   0
ELN  60  34  57  32 /   0  10   0   0
RDM  63  29  57  27 /   0   0   0   0
LGD  56  34  52  30 /  20  50  10   0
GCD  58  33  52  29 /   0  10   0   0
DLS  66  41  64  37 /   0   0   0   0

&&

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

&&

DISCUSSION...90
AVIATION...82

Preliminary Local Storm Report
National Weather Service Pendleton OR
1007 AM PDT Thu Apr 23 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0100 AM     Snow             15 SSE Dayton           46.12N 117.85W
04/23/2026  E7.0 Inch        Columbia           WA   Mesonet

            TOHW1 15.0 SE Dayton (SNOTEL).

0100 AM     Snow             21 E Milton-Freewater   45.98N 117.95W
04/23/2026  E6.0 Inch        Wallowa            OR   Mesonet

            MLKO3 (snotel).

0100 AM     Snow             13 NW Elgin             45.70N 118.11W
04/23/2026  E4.0 Inch        Umatilla           OR   Mesonet

            HIRO3 12.8 NW Elgin (SNOTEL).

&&