992
WWUS76 KPDT 191330
NPWPDT
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE PENDLETON OR
530 AM PST MON JAN 19 2026
ORZ508-510-192130-
/O.NEW.KPDT.ZF.Y.0008.260119T1330Z-260119T2000Z/
/O.CON.KPDT.AS.Y.0002.000000T0000Z-260121T0000Z/
FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON-NORTH CENTRAL
OREGON-
INCLUDING THE CITIES OF DUFUR, HEPPNER, MORO, CONDON, FOSSIL, AND
MAUPIN
530 AM PST MON JAN 19 2026
..FREEZING FOG ADVISORY IN EFFECT UNTIL NOON PST TODAY
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
TUESDAY...
* WHAT...FOR THE FREEZING FOG ADVISORY, VISIBILITY ONE QUARTER MILE
IN FREEZING FOG. FOR THE AIR STAGNATION ADVISORY, POOR AIR QUALITY
WILL CONTINUE. THIS IS DUE TO AN INVERSION AND STAGNANT AIR
CONDITIONS NEAR THE SURFACE THAT WILL CONTINUE TO TRAP POLLUTANTS.
* WHERE...FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON AND
NORTH CENTRAL OREGON.
* WHEN...FOR THE FREEZING FOG ADVISORY, UNTIL NOON PST TODAY. FOR
THE AIR STAGNATION ADVISORY, UNTIL 4 PM PST TUESDAY.
* IMPACTS...FREEZING FOG CAN STILL CREATE SPOTS WITH REDUCED
VISIBILITIES AND COUPLED WITH TEMPERATURES AT OR BELOW FREEZING,
THERE COULD BE SLICK SPOTS ON ROADWAYS. BE PREPARED FOR RAPID
CHANGES IN VISIBILITY DOWN TO ONE QUARTER MILE.
POOR AIR QUALITY MAY CAUSE ISSUES FOR PEOPLE WITH RESPIRATORY
PROBLEMS. LOW VISIBILITY COULD MAKE DRIVING CONDITIONS HAZARDOUS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF
AN AIR MASS ACROSS THE ADVISORY AREA, POLLUTION HAS THE POTENTIAL TO
INCREASE TO DANGEROUS LEVELS. PERSONS WITH RESPIRATORY ILLNESS
SHOULD FOLLOW THEIR PHYSICIANS ADVICE FOR DEALING WITH HIGH LEVELS
OF AIR POLLUTION DURING PERIODS OF STAGNANT AIR, STATE AIR QUALITY
AGENCIES HIGHLY RECOMMEND THAT NO OUTDOOR BURNING OCCUR AND THAT
RESIDENTIAL WOOD BURNING DEVICES BE LIMITED AS MUCH AS POSSIBLE.
ACCORDING TO STATE AIR QUALITY AGENCIES, PROLONGED PERIODS OF
STAGNANT AIR CAN HOLD POLLUTANTS CLOSE TO THE GROUND, WHERE PEOPLE
LIVE AND BREATHE. CHECK WITH YOUR LOCAL BURN AGENCY FOR ANY CURRENT
RESTRICTIONS IN YOUR AREA.
IF DRIVING, SLOW DOWN, USE YOUR HEADLIGHTS, AND LEAVE PLENTY OF
DISTANCE AHEAD OF YOU.
ORZ041-044-507-511-WAZ024-026>029-521-192130-
/O.CON.KPDT.AS.Y.0002.000000T0000Z-260121T0000Z/
EASTERN COLUMBIA RIVER GORGE OF OREGON-LOWER COLUMBIA BASIN OF
OREGON-FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON-CENTRAL
OREGON-EASTERN COLUMBIA RIVER GORGE OF WASHINGTON-KITTITAS VALLEY-
YAKIMA VALLEY-LOWER COLUMBIA BASIN OF WASHINGTON-FOOTHILLS OF THE
BLUE MOUNTAINS OF WASHINGTON-SIMCOE HIGHLANDS-
INCLUDING THE CITIES OF BICKLETON, PILOT ROCK, GOLDENDALE,
TRI-CITIES, PROSSER, BOARDMAN, TOPPENISH, PENDLETON, YAKIMA,
CONNELL, PRINEVILLE, HERMISTON, THORP, REDMOND, WALLA WALLA,
MADRAS, WAITSBURG, BEND, ATHENA, NACHES, SUNNYSIDE, WHITE SALMON,
THE DALLES, ELLENSBURG, DAYTON, IONE, AND ARLINGTON
530 AM PST MON JAN 19 2026
...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
TUESDAY...
* WHAT...POOR AIR QUALITY WILL CONTINUE. THIS IS DUE TO AN INVERSION
AND STAGNANT AIR CONDITIONS NEAR THE SURFACE THAT WILL CONTINUE TO
TRAP POLLUTANTS.
* WHERE...EASTERN COLUMBIA RIVER GORGE OF OREGON AND WASHINGTON,
LOWER COLUMBIA BASIN OF OREGON AND WASHINGTON, FOOTHILLS OF THE
NORTHERN BLUE MOUNTAINS OF OREGON, CENTRAL OREGON, KITTITAS
VALLEY, YAKIMA VALLEY, FOOTHILLS OF THE BLUE MOUNTAINS OF
WASHINGTON, AND SIMCOE HIGHLANDS.
* WHEN...UNTIL 4 PM PST TUESDAY.
* IMPACTS...POOR AIR QUALITY MAY CAUSE ISSUES FOR PEOPLE WITH
RESPIRATORY PROBLEMS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
AN AIR STAGNATION ADVISORY INDICATES THAT DUE TO LIMITED MOVEMENT OF
AN AIR MASS ACROSS THE ADVISORY AREA, POLLUTION HAS THE POTENTIAL TO
INCREASE TO DANGEROUS LEVELS. PERSONS WITH RESPIRATORY ILLNESS
SHOULD FOLLOW THEIR PHYSICIANS ADVICE FOR DEALING WITH HIGH LEVELS
OF AIR POLLUTION DURING PERIODS OF STAGNANT AIR, STATE AIR QUALITY
AGENCIES HIGHLY RECOMMEND THAT NO OUTDOOR BURNING OCCUR AND THAT
RESIDENTIAL WOOD BURNING DEVICES BE LIMITED AS MUCH AS POSSIBLE.
ACCORDING TO STATE AIR QUALITY AGENCIES, PROLONGED PERIODS OF
STAGNANT AIR CAN HOLD POLLUTANTS CLOSE TO THE GROUND, WHERE PEOPLE
LIVE AND BREATHE. CHECK WITH YOUR LOCAL BURN AGENCY FOR ANY CURRENT
RESTRICTIONS IN YOUR AREA.
MR
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page