FPUS76 KPDT 211413 NOWPDT Short Term Forecast National Weather Service Pendleton OR 613 AM PST Sat Jan 21 2023 WAZ029-211800- Foothills of the Blue Mountains of Washington- Including the cities of Dayton, Waitsburg, and Walla Walla 613 AM PST Sat Jan 21 2023 .NOW...Patchy dense freezing fog is being observed in the Walla Walla Valley this morning. Visibilities of one quarter mile or less may persist through the morning. $$