317 WWUS76 KPDT 100358 NPWPDT URGENT - WEATHER MESSAGE National Weather Service Pendleton OR 758 PM PST Mon Dec 9 2019 ORZ507-WAZ026-027-101500- /O.CON.KPDT.FG.Y.0009.000000T0000Z-191210T2000Z/ Foothills of the Northern Blue Mountains of Oregon- Kittitas Valley-Yakima Valley- Including the cities of Pendleton, Pilot Rock, Ellensburg, Thorp, Naches, Sunnyside, Toppenish, and Yakima 758 PM PST Mon Dec 9 2019 ...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL NOON PST TUESDAY... * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...In Washington, Kittitas Valley and Yakima Valley and the foothills of the Northern Blue Mountains in Oregon. * WHEN...Until noon PST Tuesday. * IMPACTS...Hazardous driving conditions due to low visibility. * ADDITIONAL DETAILS...Some areas could have temperatures near freezing so icy spots on roadways may develop, especially on bridges and overpasses. If driving, slow down, use your headlights, and leave plenty of distance ahead of you. && $$ For more information from the National Weather Service visit https://weather.gov/Pendleton