Alert archive / Oregon / Wind Advisories in 2025

Wind Advisory 7, NWS Portland, OR

December 15, 202513 counties in Oregon; 5 counties in Washington

NWS Portland, OR issued this wind advisory at Dec 15, 2025, 8:09 PM PST for 13 counties in Oregon; 5 counties in Washington. It took effect at Dec 16, 2025, 4:00 PM PST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Dec 15, 2025, 8:09 PM PST (04:09 UTC)
In effect from
Dec 16, 2025, 4:00 PM PST
Expired
Dec 17, 2025, 6:00 AM PST
In force
14 hr
Issued by
NWS Portland, OR

Counties Benton County, OR, Clackamas County, OR, Clatsop County, OR, Columbia County, OR, Lane County, OR, Lincoln County, OR, Linn County, OR, Marion County, OR, Multnomah County, OR, Polk County, OR, Tillamook County, OR, Washington County, OR, Yamhill County, OR, Clark County, WA, Cowlitz County, WA, Pacific County, WA, Skamania County, WA, Wahkiakum County, WA

The radar

The Portland,OR radar (KRTX), 36 km from the middle of the area, began a volume at 04:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Salem/Mcnary, OR (KSLE), launched 00:00Z, 4.2 hours before the alert went out and 53 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Salem/Mcnary, OR at 00:00Z on 2025-12-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Salem/Mcnary, OR at 00:00Z on 2025-12-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 135 square meters per square second.1939587897117136Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1 J/kg
Mixed-layer CIN
-8 J/kg
Mixed-layer LCL
845 m above ground
0-6 km bulk shear
80 kt
0-1 km storm-relative helicity
135 m²/s²
0-3 km storm-relative helicity
311 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Portland, OR issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 15, 7:54 PM PSTWinter Weather AdvisoryPQRClackamas, Hood River, Lane, Linn, Marion, Multnomah62 hr
Dec 15, 8:09 PM PSTHigh Wind WarningPQRClatsop, Lane, Lincoln, Tillamook34 hr
Dec 16, 3:36 PM PSTHazardous Seas WarningPQR36 hr

Nearby

Wind Advisories in Oregon, 2025Wind Advisories in Washington, 2025Every wind advisory in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.