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WWUS86 KPDT 311434
SPSPDT

Special Weather Statement
National Weather Service Pendleton OR
734 AM PDT Fri Oct 31 2025

WAZ026-028-029-311830-
Kittitas Valley-Lower Columbia Basin of Washington-
Foothills of the Blue Mountains of Washington-
Including the cities of Ellensburg, Thorp, Connell, Prosser,
Tri-Cities, Dayton, Waitsburg, and Walla Walla
734 AM PDT Fri Oct 31 2025

Patches of fog with visibilities from a quarter mile to one mile
have been observed across portions of the Washington Columbia
Basin, Kittitas valley, and Blue Mountain foothills. Fog with very
low visibilities have been especially noted along US Highway 12,
US Highway 395, and across the Walla Walla valley. The fog is
expected to last the next several hours, with it clearing up
before noon. Low visibilities in fog may impact travel, with areas
of freezing fog creating slick surfaces.


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