High Wind Warning 2, NWS Pendleton, OR

941 
WWUS76 KPDT 110829
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
129 AM PDT Wed Mar 11 2026

ORZ044-507-508-510-WAZ028-029-112315-
/O.CON.KPDT.HW.W.0002.260312T0300Z-260312T1800Z/
Lower Columbia Basin of Oregon-Foothills of the Northern Blue
Mountains of Oregon-Foothills of the Southern Blue Mountains of
Oregon-North Central Oregon-Lower Columbia Basin of Washington-
Foothills of the Blue Mountains of Washington-
Including the cities of Moro, Prosser, Connell, Pilot Rock, Ione,
Pendleton, Boardman, Hermiston, Fossil, Athena, Tri-Cities,
Condon, Waitsburg, Walla Walla, Dayton, Maupin, Heppner, and
Dufur
129 AM PDT Wed Mar 11 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 11 
AM PDT THURSDAY...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Foothills of the Blue Mountains of Oregon and Washington, 
  Lower Columbia Basin of Oregon and Washington, and North Central 
  Oregon.

* WHEN...From 8 PM this evening to 11 AM PDT Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Travel will be difficult, especially for high profile vehicles. 
  Patchy blowing dust may reduce visibility.

* ADDITIONAL DETAILS...Highest winds expected in the Hanford area, 
  and over higher elevations and exposed ridges. The primary window 
  of strongest winds is expected 8 pm to 2 am.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind. Watch for falling debris and tree limbs. Use 
caution if you must drive.

&&

$$

WAZ026-521-112315-
/O.CON.KPDT.HW.W.0002.260312T0300Z-260312T1800Z/
Kittitas Valley-Simcoe Highlands-
Including the cities of Thorp, Ellensburg, Goldendale, and
Bickleton
129 AM PDT Wed Mar 11 2026

...HIGH WIND WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 11 
AM PDT THURSDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph 
  expected.

* WHERE...Kittitas Valley and Simcoe Highlands.

* WHEN...From 8 PM this evening to 11 AM PDT Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Travel will be difficult, especially for high profile vehicles. 
  Patchy blowing dust may reduce visibility.

* ADDITIONAL DETAILS...Highest winds expected over higher elevations 
  and wind-proned areas, including Highway 97 in the Simcoe 
  Highlands and along Interstate 90 east of Ellensburg. The primary 
  window of strongest winds is expected 8 pm to 2 am.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind. Watch for falling debris and tree limbs. Use 
caution if you must drive.

&&

$$

BL

039 
WWUS76 KPDT 111630
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
930 AM PDT Wed Mar 11 2026

ORZ044-507-508-510-WAZ028-029-121800-
/O.EXT.KPDT.HW.W.0002.260312T0000Z-260312T1800Z/
Lower Columbia Basin of Oregon-Foothills of the Northern Blue
Mountains of Oregon-Foothills of the Southern Blue Mountains of
Oregon-North Central Oregon-Lower Columbia Basin of Washington-
Foothills of the Blue Mountains of Washington-
Including the cities of Heppner, Maupin, Dayton, Waitsburg,
Athena, Pilot Rock, Prosser, Tri-Cities, Walla Walla, Condon,
Hermiston, Boardman, Pendleton, Dufur, Moro, Fossil, Connell, and
Ione
930 AM PDT Wed Mar 11 2026

...HIGH WIND WARNING NOW IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM 
PDT THURSDAY...

* WHAT...Southwest winds 25 to 35 mph with gusts up to 60 mph 
  expected.

* WHERE...Foothills of the Blue Mountains of Oregon and Washington, 
  Lower Columbia Basin of Oregon and Washington, and North Central 
  Oregon.

* WHEN...From 5 PM this afternoon to 11 AM PDT Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Travel will be difficult, especially for high profile vehicles. 
  Patchy blowing dust may reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind. Watch for falling debris and tree limbs. Use 
caution if you must drive.

&&

$$

WAZ026-521-121800-
/O.EXT.KPDT.HW.W.0002.260312T0000Z-260312T1800Z/
Kittitas Valley-Simcoe Highlands-
Including the cities of Goldendale, Bickleton, Ellensburg, and
Thorp
930 AM PDT Wed Mar 11 2026

...HIGH WIND WARNING NOW IN EFFECT FROM 5 PM THIS AFTERNOON TO 11 AM 
PDT THURSDAY...

* WHAT...Southwest winds 30 to 40 mph with gusts up to 65 mph 
  expected.

* WHERE...Kittitas Valley and Simcoe Highlands.

* WHEN...From 5 PM this afternoon to 11 AM PDT Thursday.

* IMPACTS...Damaging winds could blow down trees and power lines. 
  Travel will be difficult, especially for high profile vehicles. 
  Patchy blowing dust may reduce visibility.

* ADDITIONAL DETAILS...Highest winds expected over higher elevations 
  and wind-proned areas, including Highway 97 in the Simcoe 
  Highlands and along Interstate 90 east of Ellensburg. The primary 
  window of strongest winds is expected 8 pm to 2 am.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People are urged to secure loose objects that could be blown around 
or damaged by the wind. Watch for falling debris and tree limbs. Use 
caution if you must drive.

&&

$$

PDT

681 
WWUS76 KPDT 121747
NPWPDT

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
1047 AM PDT Thu Mar 12 2026

ORZ044-507-508-510-WAZ026-028-029-521-121900-
/O.EXP.KPDT.HW.W.0002.000000T0000Z-260312T1800Z/
Lower Columbia Basin of Oregon-Foothills of the Northern Blue
Mountains of Oregon-Foothills of the Southern Blue Mountains of
Oregon-North Central Oregon-Kittitas Valley-Lower Columbia Basin
of Washington-Foothills of the Blue Mountains of Washington-
Simcoe Highlands-
Including the cities of Fossil, Ellensburg, Waitsburg,
Tri-Cities, Bickleton, Boardman, Dayton, Walla Walla, Heppner,
Goldendale, Maupin, Thorp, Pendleton, Moro, Condon, Pilot Rock,
Ione, Hermiston, Connell, Athena, Prosser, and Dufur
1047 AM PDT Thu Mar 12 2026

...HIGH WIND WARNING WILL EXPIRE AT 11 AM PDT THIS MORNING...

The threat has ended.

$$

CB

Area Forecast Discussion
National Weather Service Pendleton OR
1051 AM PDT Tue Mar 10 2026

.KEY MESSAGES...
- Light to Moderate snow accumulations continue in the Cascades
  this morning, with another round along the Oregon Cascade
  crest and in the Washington Blue Mountains tonight through
  Wednesday.

- Atmospheric river will produce heavy snow accumulations in the
  Washington Cascades late Tuesday through Thursday night.

- Strong winds may develop across the Columbia Basin and high
  mountain ridges/peaks Wednesday night into Thursday as cold
  front approaches and low level jet develops.

&&

.DISCUSSION...
Today through Friday night: The PacNW will be
situated under an active, near zonal flow aloft through the rest
of the workweek. Today through tonight, light to locally
moderate snow bands will develop along the Cascade crest and the
northern Blues as a shortwave trough to the north clips the
region. Snow levels will be well below pass level across the
Cascades and Blues, allowing snow accumulations in these areas.
However, hi-res ensembles show that the bulk of the
precipitation in the Blues will be focused in the WA portion of
the mountain range. Winter weather advisories have been issued
for the OR Cascade east slopes and the WA Northern Blues through
tomorrow afternoon and evening.

By tomorrow, the first wave of an Atmospheric River will reach
the PacNW, increasing precipitation along the Cascade crest,
with persistent light to moderate precip along the Northern
Blues and Eagle Caps. The AR will continue to push a moderate
plume of moisture into the region Thursday, resulting in more
light to moderate precipitation rates across the mountain zone.
But by Friday, a second wave in the AR will result in another
round of moderate to heavy precip in the mountains throughout
Friday. At the beginning of the AR period, snow levels will
start off below pass level across the region, but will rise to
at least above 4.5kft late Wednesday as warm air advects into
the region with the arrival of surface warm front and strong
low-level jet. A cold front sagging south into WA will bring
snow levels back down to 2.5kft to 4kft across the central WA
Cascade crest Thursday through Friday, while snow levels will
generally be above 4kft to 5.5kft across the remainder of the
forecast area. The AR combined with the low snow levels across
the WA Cascades will result in heavy snow accumulations over a
three day period ending Friday morning. As for how heavy are
accumulations, the NBM is indicating a 85-95% chance of snow
accumulations greater than 2 feet at Snoqualmie and White pass
through Friday morning, with chances of 3 feet around 40-60%. As
for Santiam Pass and the northern Blues, chances of seeing snow
accumulations of at least 12 inches through a three day period
ending Friday morning are only 40-60%, though the best chance
will be through Wednesday afternoon when snow levels are still
at or below the surface.

In the lower elevations, snow levels will generally be above the
surface, resulting in light rain accumulations throughout the
week. Rain shadowing on the lee side of the Cascades will limit
the amount of precipitation most areas will see (0.05 to 0.15
inches), but portions of the Blue mountain foothills will see
0.25 to 0.45 inches of rain through Thursday night, with an
additional 0.1 to 0.2 inches Friday (confidence 60-80%).

The aforementioned cold front and it's parent surface low will
also bring the potential for strong winds across the Columbia
Basin and adjacent valleys/foothills late Wednesday through
Thursday morning. The cold front passage will also coincide
with a strong 850mb jet (55-65kts) developing over the Columbia
Basin Wednesday night. There is a chance (55-75%) that these
strong winds will mix down into the lower elevations, especially
in wind prone areas across north central OR, Simcoe Highlands,
and the Columbia Basin. A High Wind Watch is in effect for these
areas Wednesday evening through Thursday morning.

Saturday through Monday: There is good agreement amongst
ensemble cluster guidance that a ridge building offshore will
push the AR north of the region, bringing a momentary respite
from heavy precipitation in the mountains. Sunday through Monday,
persistent light rain/snow will redevelop across the Cascade
crest and northern Blues as a weak AR rounds the top of the
offshore ridge(confidence 45-65%). Lawhorn/82

&&

.AVIATION /18Z TAFS THROUGH 18Z WEDNESDAY/...

Mostly VFR conditions to prevail through the period. Light rain
will develop at site DLS after 00Z, with CIGs potentially
lowering to MVFR after 03Z-06Z. Rain will also be possible at
KALW/KPDT/KRDM/KBDN after 05Z, KYKM after 12Z and KPSC after
15Z, Have indicated the likeliest times using PROB30. Winds will
increase to 12-17kts with gusts 20-25kts after 20Z. Winds will
weaken at sites DLS/YKM to less than 10kts this evening, with
winds continuing at 10kts to 15kts at sites PDT/RDM/BDN/ALW/PSC
through 18Z tomorrow. Gusts to around 21kts will persist at
site BDN after 04Z. Perry/83

&&

.Preliminary Point Temps/PoPs...
PDT  46  34  57  47 /  20  40  50  50
ALW  46  37  55  47 /  30  50  70  70
PSC  52  37  58  49 /   0  20  20  40
YKM  48  28  54  41 /  20  40  60  80
HRI  50  36  59  49 /  10  30  30  40
ELN  44  27  45  36 /  30  50  70  80
RDM  41  28  54  39 /  10  20  30  30
LGD  40  29  48  42 /  50  50  80  80
GCD  40  28  52  43 /  40  20  40  30
DLS  49  36  53  47 /  50  80  80  80

&&

.PDT WATCHES/WARNINGS/ADVISORIES...
WA...High Wind Watch from Wednesday afternoon through Thursday
     morning for WAZ026-028-029-521.
     Winter Weather Advisory from 8 PM this evening to 8 PM PDT
     Wednesday for WAZ030.
     Winter Storm Warning from 5 PM this afternoon to 5 AM PDT
     Friday for WAZ522.
OR...High Wind Watch from Wednesday afternoon through Thursday
     morning for ORZ044-507-508-510.
     Winter Weather Advisory until 5 PM PDT Wednesday for ORZ509.

&&

DISCUSSION...82
AVIATION...83