324
AUUS46 KPDT 091225
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
525 AM PDT TUE JUN 9 2026
*** AIR DISPERSION CATEGORIES: GOOD, FAIR, POOR ***
FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO
7:00 AM AFTERNOON
SURFACE WINDS SW 20-36 MPH. W 27-35 MPH.
TRANSPORT WINDS SW 22-37 MPH. W 29-35 MPH.
MIXING HEIGHT NEAR SURFACE. 7500 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR WED JUN 10 GOOD.
OUTLOOK FOR THU JUN 11 FAIR.
VENTILATION INDEX (CATEGORY) 605 (GOOD). 1050 (GOOD).
OUTLOOK FOR WED JUN 10 1021 (GOOD).
OUTLOOK FOR THU JUN 11 341 (FAIR).
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
7:00 AM AFTERNOON
SURFACE WINDS SW 15-25 MPH. W 21-25 MPH.
TRANSPORT WINDS SW 16-27 MPH. W 25-28 MPH.
MIXING HEIGHT NEAR SURFACE. 7000 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR WED JUN 10 FAIR.
OUTLOOK FOR THU JUN 11 FAIR.
VENTILATION INDEX (CATEGORY) 503 (FAIR). 1050 (GOOD).
OUTLOOK FOR WED JUN 10 724 (GOOD).
OUTLOOK FOR THU JUN 11 217 (POOR).
FOR THE GRANDE RONDE RIVER VALLEY
7:00 AM AFTERNOON
SURFACE WINDS W 9-15 MPH. W 14-18 MPH.
TRANSPORT WINDS W 12-17 MPH. W 19-23 MPH.
MIXING HEIGHT 4000 FT MSL. 8000 FT MSL.
DISPERSION CATEGORY POOR. GOOD.
OUTLOOK FOR WED JUN 10 GOOD.
OUTLOOK FOR THU JUN 11 FAIR.
VENTILATION INDEX (CATEGORY) 405 (FAIR). 915 (GOOD).
OUTLOOK FOR WED JUN 10 782 (GOOD).
OUTLOOK FOR THU JUN 11 290 (POOR).
FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS
7:00 AM AFTERNOON
SURFACE WINDS SW 20-32 MPH. W 23-34 MPH.
TRANSPORT WINDS SW 21-32 MPH. W 26-34 MPH.
MIXING HEIGHT NEAR SURFACE. 6500 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR WED JUN 10 GOOD.
OUTLOOK FOR THU JUN 11 FAIR.
VENTILATION INDEX (CATEGORY) 474 (FAIR). 1032 (GOOD).
OUTLOOK FOR WED JUN 10 960 (GOOD).
OUTLOOK FOR THU JUN 11 313 (FAIR).
SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM 1050 (GOOD)
ELLENSBURG 1050 (GOOD)
GOLDENDALE 1050 (GOOD)
TRI-CITIES 1050 (GOOD)
WALLA WALLA 1050 (GOOD)
YAKIMA 1050 (GOOD)
BEND 799 (GOOD)
PRINEVILLE 968 (GOOD)
ENTERPRISE 920 (GOOD)
HERMISTON 1050 (GOOD)
JOHN DAY 1050 (GOOD)
LA GRANDE 979 (GOOD)
MADRAS 1050 (GOOD)
MEACHAM 1009 (GOOD)
PENDLETON 1050 (GOOD)
REDMOND 959 (GOOD)
SENECA 1050 (GOOD)
THE DALLES 1050 (GOOD)
METEOROLOGICAL INFORMATION PROVIDED IN THIS PRODUCT REPRESENTS ONLY
SOME OF THE FACTORS USED IN BURN DECISIONS. BURN DECISIONS ARE
OUTSIDE THE PURVIEW OF THE NATIONAL WEATHER SERVICE.
THE VENTILATION INDEX IS A TOOL TO ASSIST SMOKE MANAGEMENT
AGENCIES IN DETERMINING BURN OR NO BURN DECISIONS. A VENTILATION
INDEX GRAPHIC IS ON THE PENDLETON WEBSITE AT THE FOLLOWING ADDRESS:
HTTPS://WWW.WEATHER.GOV/PDT/DSSBRIEFING
IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page