Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
315 AUUS46 KPDT 181250 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 550 AM PDT TUE JUN 18 2024 *** AIR DISPERSION CATEGORIES: GOOD, FAIR, POOR *** FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO 7:00 AM AFTERNOON SURFACE WINDS SW 8-15 MPH. W 6-9 MPH. TRANSPORT WINDS SW 8-13 MPH. SW 6-8 MPH. MIXING HEIGHT NEAR SURFACE. 8000 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR WED JUN 19 FAIR. OUTLOOK FOR THU JUN 20 FAIR. VENTILATION INDEX (CATEGORY) 187 (POOR). 417 (FAIR). OUTLOOK FOR WED JUN 19 423 (FAIR). OUTLOOK FOR THU JUN 20 481 (FAIR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS W 2-5 MPH. SE 3-6 MPH. TRANSPORT WINDS W 3-6 MPH. SE 3-6 MPH. MIXING HEIGHT NEAR SURFACE. 8500 FT MSL. DISPERSION CATEGORY POOR. POOR. OUTLOOK FOR WED JUN 19 FAIR. OUTLOOK FOR THU JUN 20 FAIR. VENTILATION INDEX (CATEGORY) 66 (POOR). 267 (POOR). OUTLOOK FOR WED JUN 19 451 (FAIR). OUTLOOK FOR THU JUN 20 780 (GOOD). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS SE 2-3 MPH. S 2-5 MPH. TRANSPORT WINDS SW 3-7 MPH. SW 5-9 MPH. MIXING HEIGHT 4500 FT MSL. 10500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR WED JUN 19 GOOD. OUTLOOK FOR THU JUN 20 GOOD. VENTILATION INDEX (CATEGORY) 102 (POOR). 394 (FAIR). OUTLOOK FOR WED JUN 19 566 (FAIR). OUTLOOK FOR THU JUN 20 438 (FAIR). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS S 5-13 MPH. NW 5-6 MPH. TRANSPORT WINDS SW 9-16 MPH. SW 6-8 MPH. MIXING HEIGHT NEAR SURFACE. 7000 FT MSL. DISPERSION CATEGORY FAIR. FAIR. OUTLOOK FOR WED JUN 19 FAIR. OUTLOOK FOR THU JUN 20 FAIR. VENTILATION INDEX (CATEGORY) 191 (POOR). 375 (FAIR). OUTLOOK FOR WED JUN 19 318 (FAIR). OUTLOOK FOR THU JUN 20 345 (FAIR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 317 (FAIR) ELLENSBURG 309 (FAIR) GOLDENDALE 381 (FAIR) TRI-CITIES 404 (FAIR) WALLA WALLA 396 (FAIR) YAKIMA 287 (POOR) BEND 126 (POOR) PRINEVILLE 154 (POOR) ENTERPRISE 346 (FAIR) HERMISTON 346 (FAIR) JOHN DAY 486 (FAIR) LA GRANDE 419 (FAIR) MADRAS 159 (POOR) MEACHAM 315 (FAIR) PENDLETON 356 (FAIR) REDMOND 125 (POOR) SENECA 620 (GOOD) THE DALLES 210 (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: HTTP://WWW.WRH.NOAA.GOV/PDT/GFORECAST/GINDEX.PHP?FCST=MIXHGT,VENTCAT,TRANSWIND,VENTINDX&VT=0,72 IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE NATIONAL WEATHER SERVICE IN PENDLETON. $$