![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
273 AUUS46 KPDT 151132 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 432 AM PDT THU AUG 15 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 6-12 MPH. SW 7-14 MPH. TRANSPORT WINDS SW 7-14 MPH. SW 8-15 MPH. MIXING HEIGHT NEAR SURFACE. 6000 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI AUG 16 FAIR. OUTLOOK FOR SAT AUG 17 FAIR. VENTILATION INDEX (CATEGORY) 114 (POOR). 512 (FAIR). OUTLOOK FOR FRI AUG 16 648 (GOOD). OUTLOOK FOR SAT AUG 17 405 (FAIR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS W 2-5 MPH. NW 5-10 MPH. TRANSPORT WINDS NW 4-8 MPH. NW 5-10 MPH. MIXING HEIGHT NEAR SURFACE. 7500 FT MSL. DISPERSION CATEGORY POOR. POOR. OUTLOOK FOR FRI AUG 16 FAIR. OUTLOOK FOR SAT AUG 17 FAIR. VENTILATION INDEX (CATEGORY) 47 (POOR). 273 (POOR). OUTLOOK FOR FRI AUG 16 271 (POOR). OUTLOOK FOR SAT AUG 17 375 (FAIR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS NW 5-10 MPH. NW 5-10 MPH. TRANSPORT WINDS NW 4-8 MPH. NW 5-10 MPH. MIXING HEIGHT NEAR SURFACE. 8000 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI AUG 16 GOOD. OUTLOOK FOR SAT AUG 17 GOOD. VENTILATION INDEX (CATEGORY) 73 (POOR). 248 (POOR). OUTLOOK FOR FRI AUG 16 428 (FAIR). OUTLOOK FOR SAT AUG 17 943 (GOOD). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SW 5-10 MPH. W 6-12 MPH. TRANSPORT WINDS SW 6-12 MPH. W 7-14 MPH. MIXING HEIGHT NEAR SURFACE. 5500 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI AUG 16 FAIR. OUTLOOK FOR SAT AUG 17 FAIR. VENTILATION INDEX (CATEGORY) 121 (POOR). 367 (FAIR). OUTLOOK FOR FRI AUG 16 465 (FAIR). OUTLOOK FOR SAT AUG 17 496 (FAIR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 317 (FAIR) ELLENSBURG 445 (FAIR) GOLDENDALE 509 (FAIR) TRI-CITIES 500 (FAIR) WALLA WALLA 348 (FAIR) YAKIMA 285 (POOR) BEND 340 (FAIR) PRINEVILLE 353 (FAIR) ENTERPRISE 71 (POOR) HERMISTON 627 (GOOD) JOHN DAY 270 (POOR) LA GRANDE 287 (POOR) MADRAS 322 (FAIR) MEACHAM 271 (POOR) PENDLETON 518 (FAIR) REDMOND 385 (FAIR) SENECA 280 (POOR) THE DALLES 704 (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. $$