Expires:200911261800;Remove:200911261800;263583 FPUS76 KPDT 261343 NOWPDT SHORT TERM FORECAST NATIONAL WEATHER SERVICE PENDLETON OR 543 AM PST THU NOV 26 2009 ORZ041-044-501-WAZ024-027>029-261800- EASTERN COLUMBIA RIVER GORGE OF OREGON- LOWER COLUMBIA BASIN OF OREGON- FOOTHILLS OF THE BLUE MOUNTAINS OF OREGON- EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-YAKIMA VALLEY- LOWER COLUMBIA BASIN OF WASHINGTON- FOOTHILLS OF THE BLUE MOUNTAINS OF WASHINGTON- INCLUDING THE CITIES OF...THE DALLES...ARLINGTON...BOARDMAN... HERMISTON...HEPPNER...PENDLETON...WHITE SALMON...SUNNYSIDE... YAKIMA...CONNELL...PROSSER...TRI-CITIES...DAYTON...WAITSBURG... WALLA WALLA 543 AM PST THU NOV 26 2009 .NOW... PATCHY FOG IS FORMING THIS MORNING THROUGHOUT THE LOWER COLUMBIA BASIN AND SURROUNDING FOOTHILLS. LOCAL VISIBILITY COULD BE REDUCED TO LESS THAN A QUARTER OF A MILE AT TIMES ESPECIALLY NEAR STREAMS...RIVERS OR OTHER MOISTURE SOURCES. TEMPERATURES ARE ALSO CLOSE TO OR BELOW FREEZING IN SOME LOCATIONS WHICH COULD RESULT IN SLICK SURFACES FORMED BY FREEZING FOG. MOTORIST SHOULD EXERCISE CAUTION WHEN DRIVING IN FOGGY CONDITIONS THIS MORNING. THE FOG WILL DISSIPATE BY MIDDAY. $$