067
AUUS46 KPDT 141325
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
525 AM PST FRI NOV 14 2025
*** AIR DISPERSION CATEGORIES: GOOD, FAIR, POOR ***
FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO
7:00 AM AFTERNOON
SURFACE WINDS S 8-18 MPH. SW 10-14 MPH.
TRANSPORT WINDS SW 8-18 MPH. SW 10-14 MPH.
MIXING HEIGHT NEAR SURFACE. 3000 FT MSL.
DISPERSION CATEGORY FAIR. FAIR.
OUTLOOK FOR SAT NOV 15 FAIR.
OUTLOOK FOR SUN NOV 16 POOR.
VENTILATION INDEX (CATEGORY) 60 (POOR). 185 (POOR).
OUTLOOK FOR SAT NOV 15 155 (POOR).
OUTLOOK FOR SUN NOV 16 67 (POOR).
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
7:00 AM AFTERNOON
SURFACE WINDS SW 5-11 MPH. SW 8-14 MPH.
TRANSPORT WINDS S 6-12 MPH. SW 16-22 MPH.
MIXING HEIGHT NEAR SURFACE. 4000 FT MSL.
DISPERSION CATEGORY POOR. GOOD.
OUTLOOK FOR SAT NOV 15 POOR.
OUTLOOK FOR SUN NOV 16 POOR.
VENTILATION INDEX (CATEGORY) 56 (POOR). 415 (FAIR).
OUTLOOK FOR SAT NOV 15 64 (POOR).
OUTLOOK FOR SUN NOV 16 94 (POOR).
FOR THE GRANDE RONDE RIVER VALLEY
7:00 AM AFTERNOON
SURFACE WINDS SW 5-6 MPH. S 3-5 MPH.
TRANSPORT WINDS SW 6-8 MPH. SW 9-12 MPH.
MIXING HEIGHT 4000 FT MSL. 7000 FT MSL.
DISPERSION CATEGORY POOR. FAIR.
OUTLOOK FOR SAT NOV 15 FAIR.
OUTLOOK FOR SUN NOV 16 FAIR.
VENTILATION INDEX (CATEGORY) 87 (POOR). 343 (FAIR).
OUTLOOK FOR SAT NOV 15 163 (POOR).
OUTLOOK FOR SUN NOV 16 185 (POOR).
FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS
7:00 AM AFTERNOON
SURFACE WINDS S 6-19 MPH. SW 7-18 MPH.
TRANSPORT WINDS SW 8-19 MPH. SW 8-18 MPH.
MIXING HEIGHT NEAR SURFACE. 3500 FT MSL.
DISPERSION CATEGORY FAIR. FAIR.
OUTLOOK FOR SAT NOV 15 POOR.
OUTLOOK FOR SUN NOV 16 POOR.
VENTILATION INDEX (CATEGORY) 83 (POOR). 205 (POOR).
OUTLOOK FOR SAT NOV 15 151 (POOR).
OUTLOOK FOR SUN NOV 16 58 (POOR).
SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM 177 (POOR)
ELLENSBURG 185 (POOR)
GOLDENDALE 386 (FAIR)
TRI-CITIES 197 (POOR)
WALLA WALLA 154 (POOR)
YAKIMA 214 (POOR)
BEND 611 (GOOD)
PRINEVILLE 512 (FAIR)
ENTERPRISE 305 (FAIR)
HERMISTON 147 (POOR)
JOHN DAY 733 (GOOD)
LA GRANDE 382 (FAIR)
MADRAS 456 (FAIR)
MEACHAM 238 (POOR)
PENDLETON 201 (POOR)
REDMOND 394 (FAIR)
SENECA 684 (GOOD)
THE DALLES 165 (POOR)
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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