233
AUUS46 KPDT 071225
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
525 AM PDT SUN JUN 7 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 13-25 MPH. SW 11-15 MPH.
TRANSPORT WINDS SW 14-25 MPH. SW 12-17 MPH.
MIXING HEIGHT 2000 FT MSL. 8000 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR MON JUN 8 FAIR.
OUTLOOK FOR TUE JUN 9 GOOD.
VENTILATION INDEX (CATEGORY) 417 (FAIR). 918 (GOOD).
OUTLOOK FOR MON JUN 8 416 (FAIR).
OUTLOOK FOR TUE JUN 9 1047 (GOOD).
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
7:00 AM AFTERNOON
SURFACE WINDS W 4-9 MPH. SW 5-9 MPH.
TRANSPORT WINDS W 5-10 MPH. SW 5-9 MPH.
MIXING HEIGHT NEAR SURFACE. 8500 FT MSL.
DISPERSION CATEGORY POOR. FAIR.
OUTLOOK FOR MON JUN 8 FAIR.
OUTLOOK FOR TUE JUN 9 GOOD.
VENTILATION INDEX (CATEGORY) 157 (POOR). 497 (FAIR).
OUTLOOK FOR MON JUN 8 419 (FAIR).
OUTLOOK FOR TUE JUN 9 1050 (GOOD).
FOR THE GRANDE RONDE RIVER VALLEY
7:00 AM AFTERNOON
SURFACE WINDS W 4-8 MPH. NW 3-5 MPH.
TRANSPORT WINDS W 8-11 MPH. W 9-11 MPH.
MIXING HEIGHT 4500 FT MSL. 10000 FT MSL.
DISPERSION CATEGORY POOR. GOOD.
OUTLOOK FOR MON JUN 8 FAIR.
OUTLOOK FOR TUE JUN 9 GOOD.
VENTILATION INDEX (CATEGORY) 264 (POOR). 645 (GOOD).
OUTLOOK FOR MON JUN 8 505 (FAIR).
OUTLOOK FOR TUE JUN 9 537 (FAIR).
FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS
7:00 AM AFTERNOON
SURFACE WINDS SW 13-23 MPH. W 9-16 MPH.
TRANSPORT WINDS SW 14-22 MPH. W 12-17 MPH.
MIXING HEIGHT 2500 FT MSL. 8000 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR MON JUN 8 FAIR.
OUTLOOK FOR TUE JUN 9 GOOD.
VENTILATION INDEX (CATEGORY) 434 (FAIR). 827 (GOOD).
OUTLOOK FOR MON JUN 8 356 (FAIR).
OUTLOOK FOR TUE JUN 9 908 (GOOD).
SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM 596 (FAIR)
ELLENSBURG 1032 (GOOD)
GOLDENDALE 617 (GOOD)
TRI-CITIES 811 (GOOD)
WALLA WALLA 850 (GOOD)
YAKIMA 464 (FAIR)
BEND 411 (FAIR)
PRINEVILLE 314 (FAIR)
ENTERPRISE 700 (GOOD)
HERMISTON 806 (GOOD)
JOHN DAY 573 (FAIR)
LA GRANDE 742 (GOOD)
MADRAS 295 (POOR)
MEACHAM 669 (GOOD)
PENDLETON 794 (GOOD)
REDMOND 298 (POOR)
SENECA 736 (GOOD)
THE DALLES 607 (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.
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