![National Oceanic and Atmospheric Administration](/build/images/header/noaa.d87e0251.png)
![National Weather Service](/build/images/header/nws.4e6585d8.png)
![United States Department of Commerce](/build/images/header/doc.b38ba91a.png)
Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
063 AUUS46 KPDT 121109 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 409 AM PDT MON AUG 12 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. SW 13-18 MPH. TRANSPORT WINDS SW 8-15 MPH. SW 15-19 MPH. MIXING HEIGHT NEAR SURFACE. 6000 FT MSL. DISPERSION CATEGORY FAIR. FAIR. OUTLOOK FOR TUE AUG 13 FAIR. OUTLOOK FOR WED AUG 14 FAIR. VENTILATION INDEX (CATEGORY) 187 (POOR). 686 (GOOD). OUTLOOK FOR TUE AUG 13 629 (GOOD). OUTLOOK FOR WED AUG 14 434 (FAIR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS W 4-8 MPH. SW 7-12 MPH. TRANSPORT WINDS W 4-8 MPH. SW 7-12 MPH. MIXING HEIGHT NEAR SURFACE. 8500 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR TUE AUG 13 FAIR. OUTLOOK FOR WED AUG 14 POOR. VENTILATION INDEX (CATEGORY) 80 (POOR). 464 (FAIR). OUTLOOK FOR TUE AUG 13 268 (POOR). OUTLOOK FOR WED AUG 14 170 (POOR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS NW 2-3 MPH. NW 6-8 MPH. TRANSPORT WINDS NW 4-8 MPH. W 9-10 MPH. MIXING HEIGHT 4000 FT MSL. 10500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR TUE AUG 13 GOOD. OUTLOOK FOR WED AUG 14 GOOD. VENTILATION INDEX (CATEGORY) 99 (POOR). 475 (FAIR). OUTLOOK FOR TUE AUG 13 293 (POOR). OUTLOOK FOR WED AUG 14 318 (FAIR). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SW 8-15 MPH. W 11-14 MPH. TRANSPORT WINDS SW 8-15 MPH. W 10-17 MPH. MIXING HEIGHT NEAR SURFACE. 6500 FT MSL. DISPERSION CATEGORY FAIR. FAIR. OUTLOOK FOR TUE AUG 13 FAIR. OUTLOOK FOR WED AUG 14 FAIR. VENTILATION INDEX (CATEGORY) 183 (POOR). 535 (FAIR). OUTLOOK FOR TUE AUG 13 443 (FAIR). OUTLOOK FOR WED AUG 14 346 (FAIR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 446 (FAIR) ELLENSBURG 559 (FAIR) GOLDENDALE 601 (GOOD) TRI-CITIES 789 (GOOD) WALLA WALLA 599 (FAIR) YAKIMA 368 (FAIR) BEND 771 (GOOD) PRINEVILLE 613 (GOOD) ENTERPRISE 581 (FAIR) HERMISTON 705 (GOOD) JOHN DAY 1028 (GOOD) LA GRANDE 532 (FAIR) MADRAS 593 (FAIR) MEACHAM 327 (FAIR) PENDLETON 592 (FAIR) REDMOND 556 (FAIR) SENECA 1050 (GOOD) THE DALLES 730 (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: 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. $$