Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
335 AUUS46 KPDT 291157 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 457 AM PDT SUN SEP 29 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 15-25 MPH. W 13-18 MPH. TRANSPORT WINDS SW 15-25 MPH. W 14-19 MPH. MIXING HEIGHT NEAR SURFACE. 7500 FT MSL. DISPERSION CATEGORY GOOD. GOOD. OUTLOOK FOR MON SEP 30 FAIR. OUTLOOK FOR TUE OCT 1 POOR. VENTILATION INDEX (CATEGORY) 151 (POOR). 731 (GOOD). OUTLOOK FOR MON SEP 30 181 (POOR). OUTLOOK FOR TUE OCT 1 155 (POOR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS W 7-14 MPH. NW 10-15 MPH. TRANSPORT WINDS W 10-15 MPH. NW 12-17 MPH. MIXING HEIGHT NEAR SURFACE. 7500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR MON SEP 30 POOR. OUTLOOK FOR TUE OCT 1 FAIR. VENTILATION INDEX (CATEGORY) 85 (POOR). 671 (GOOD). OUTLOOK FOR MON SEP 30 146 (POOR). OUTLOOK FOR TUE OCT 1 119 (POOR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS SW 7-14 MPH. NW 11-16 MPH. TRANSPORT WINDS W 7-14 MPH. NW 15-20 MPH. MIXING HEIGHT NEAR SURFACE. 8000 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR MON SEP 30 FAIR. OUTLOOK FOR TUE OCT 1 FAIR. VENTILATION INDEX (CATEGORY) 152 (POOR). 655 (GOOD). OUTLOOK FOR MON SEP 30 223 (POOR). OUTLOOK FOR TUE OCT 1 282 (POOR). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SW 15-25 MPH. W 15-20 MPH. TRANSPORT WINDS SW 15-25 MPH. W 17-22 MPH. MIXING HEIGHT NEAR SURFACE. 6500 FT MSL. DISPERSION CATEGORY GOOD. GOOD. OUTLOOK FOR MON SEP 30 POOR. OUTLOOK FOR TUE OCT 1 FAIR. VENTILATION INDEX (CATEGORY) 201 (POOR). 733 (GOOD). OUTLOOK FOR MON SEP 30 163 (POOR). OUTLOOK FOR TUE OCT 1 179 (POOR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 1018 (GOOD) ELLENSBURG 1039 (GOOD) GOLDENDALE 677 (GOOD) TRI-CITIES 834 (GOOD) WALLA WALLA 736 (GOOD) YAKIMA 715 (GOOD) BEND 363 (FAIR) PRINEVILLE 457 (FAIR) ENTERPRISE 694 (GOOD) HERMISTON 594 (FAIR) JOHN DAY 575 (FAIR) LA GRANDE 738 (GOOD) MADRAS 494 (FAIR) MEACHAM 586 (FAIR) PENDLETON 682 (GOOD) REDMOND 457 (FAIR) SENECA 503 (FAIR) THE DALLES 775 (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. $$