961
AUUS46 KPDT 101225
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
525 AM PDT WED JUN 10 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 12-21 MPH. W 10-14 MPH.
TRANSPORT WINDS W 17-28 MPH. W 15-18 MPH.
MIXING HEIGHT 2000 FT MSL. 9000 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR THU JUN 11 FAIR.
OUTLOOK FOR FRI JUN 12 GOOD.
VENTILATION INDEX (CATEGORY) 476 (FAIR). 1046 (GOOD).
OUTLOOK FOR THU JUN 11 401 (FAIR).
OUTLOOK FOR FRI JUN 12 566 (FAIR).
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
7:00 AM AFTERNOON
SURFACE WINDS W 3-14 MPH. NW 8-14 MPH.
TRANSPORT WINDS W 8-15 MPH. NW 11-16 MPH.
MIXING HEIGHT NEAR SURFACE. 8500 FT MSL.
DISPERSION CATEGORY POOR. GOOD.
OUTLOOK FOR THU JUN 11 FAIR.
OUTLOOK FOR FRI JUN 12 FAIR.
VENTILATION INDEX (CATEGORY) 316 (FAIR). 893 (GOOD).
OUTLOOK FOR THU JUN 11 284 (POOR).
OUTLOOK FOR FRI JUN 12 447 (FAIR).
FOR THE GRANDE RONDE RIVER VALLEY
7:00 AM AFTERNOON
SURFACE WINDS W 4-11 MPH. NW 8-14 MPH.
TRANSPORT WINDS W 14-19 MPH. W 15-17 MPH.
MIXING HEIGHT 5000 FT MSL. 8500 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR THU JUN 11 GOOD.
OUTLOOK FOR FRI JUN 12 GOOD.
VENTILATION INDEX (CATEGORY) 467 (FAIR). 851 (GOOD).
OUTLOOK FOR THU JUN 11 363 (FAIR).
OUTLOOK FOR FRI JUN 12 542 (FAIR).
FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS
7:00 AM AFTERNOON
SURFACE WINDS SW 11-18 MPH. W 10-15 MPH.
TRANSPORT WINDS W 18-26 MPH. W 16-19 MPH.
MIXING HEIGHT 2500 FT MSL. 7500 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR THU JUN 11 FAIR.
OUTLOOK FOR FRI JUN 12 GOOD.
VENTILATION INDEX (CATEGORY) 484 (FAIR). 1000 (GOOD).
OUTLOOK FOR THU JUN 11 354 (FAIR).
OUTLOOK FOR FRI JUN 12 604 (GOOD).
SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM 761 (GOOD)
ELLENSBURG 1050 (GOOD)
GOLDENDALE 946 (GOOD)
TRI-CITIES 1050 (GOOD)
WALLA WALLA 1028 (GOOD)
YAKIMA 1002 (GOOD)
BEND 662 (GOOD)
PRINEVILLE 727 (GOOD)
ENTERPRISE 935 (GOOD)
HERMISTON 1050 (GOOD)
JOHN DAY 959 (GOOD)
LA GRANDE 920 (GOOD)
MADRAS 808 (GOOD)
MEACHAM 793 (GOOD)
PENDLETON 1050 (GOOD)
REDMOND 711 (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.
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