526
AUUS46 KPDT 141225
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
525 AM PDT SAT MAR 14 2026
*** AIR DISPERSION CATEGORIES: GOOD, FAIR, POOR ***
FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO
7:00 AM AFTERNOON
SURFACE WINDS W 13-26 MPH. W 18-26 MPH.
TRANSPORT WINDS W 16-31 MPH. W 23-26 MPH.
MIXING HEIGHT NEAR SURFACE. 8500 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR SUN MAR 15 POOR.
OUTLOOK FOR MON MAR 16 FAIR.
VENTILATION INDEX (CATEGORY) 249 (POOR). 1050 (GOOD).
OUTLOOK FOR SUN MAR 15 125 (POOR).
OUTLOOK FOR MON MAR 16 127 (POOR).
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
7:00 AM AFTERNOON
SURFACE WINDS NW 7-13 MPH. NW 14-19 MPH.
TRANSPORT WINDS NW 10-15 MPH. NW 22-27 MPH.
MIXING HEIGHT NEAR SURFACE. 7500 FT MSL.
DISPERSION CATEGORY FAIR. GOOD.
OUTLOOK FOR SUN MAR 15 POOR.
OUTLOOK FOR MON MAR 16 POOR.
VENTILATION INDEX (CATEGORY) 184 (POOR). 1050 (GOOD).
OUTLOOK FOR SUN MAR 15 144 (POOR).
OUTLOOK FOR MON MAR 16 124 (POOR).
FOR THE GRANDE RONDE RIVER VALLEY
7:00 AM AFTERNOON
SURFACE WINDS W 12-17 MPH. NW 24-36 MPH.
TRANSPORT WINDS W 21-27 MPH. NW 29-36 MPH.
MIXING HEIGHT 5000 FT MSL. 9500 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR SUN MAR 15 FAIR.
OUTLOOK FOR MON MAR 16 FAIR.
VENTILATION INDEX (CATEGORY) 672 (GOOD). 1050 (GOOD).
OUTLOOK FOR SUN MAR 15 369 (FAIR).
OUTLOOK FOR MON MAR 16 219 (POOR).
FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS
7:00 AM AFTERNOON
SURFACE WINDS W 18-27 MPH. W 21-30 MPH.
TRANSPORT WINDS W 21-31 MPH. W 25-29 MPH.
MIXING HEIGHT 2000 FT MSL. 7500 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR SUN MAR 15 POOR.
OUTLOOK FOR MON MAR 16 GOOD.
VENTILATION INDEX (CATEGORY) 392 (FAIR). 1050 (GOOD).
OUTLOOK FOR SUN MAR 15 164 (POOR).
OUTLOOK FOR MON MAR 16 209 (POOR).
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 678 (GOOD)
PRINEVILLE 871 (GOOD)
ENTERPRISE 1050 (GOOD)
HERMISTON 1050 (GOOD)
JOHN DAY 1050 (GOOD)
LA GRANDE 1050 (GOOD)
MADRAS 909 (GOOD)
MEACHAM 1050 (GOOD)
PENDLETON 1050 (GOOD)
REDMOND 892 (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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