Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
217 AUUS46 KPDT 181200 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 500 AM PDT SAT MAY 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 6-12 MPH. W 12-22 MPH. TRANSPORT WINDS SW 7-12 MPH. W 17-23 MPH. MIXING HEIGHT NEAR SURFACE. 8500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR SUN MAY 19 FAIR. OUTLOOK FOR MON MAY 20 FAIR. VENTILATION INDEX (CATEGORY) 122 (POOR). 954 (GOOD). OUTLOOK FOR SUN MAY 19 721 (GOOD). OUTLOOK FOR MON MAY 20 510 (FAIR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS W 3-7 MPH. NW 12-18 MPH. TRANSPORT WINDS NW 3-7 MPH. NW 16-22 MPH. MIXING HEIGHT NEAR SURFACE. 10000 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR SUN MAY 19 FAIR. OUTLOOK FOR MON MAY 20 FAIR. VENTILATION INDEX (CATEGORY) 67 (POOR). 848 (GOOD). OUTLOOK FOR SUN MAY 19 553 (FAIR). OUTLOOK FOR MON MAY 20 357 (FAIR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS SE 2-4 MPH. NW 12-20 MPH. TRANSPORT WINDS W 3-7 MPH. NW 15-20 MPH. MIXING HEIGHT NEAR SURFACE. 11000 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR SUN MAY 19 GOOD. OUTLOOK FOR MON MAY 20 GOOD. VENTILATION INDEX (CATEGORY) 79 (POOR). 910 (GOOD). OUTLOOK FOR SUN MAY 19 599 (FAIR). OUTLOOK FOR MON MAY 20 812 (GOOD). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SW 6-12 MPH. W 15-20 MPH. TRANSPORT WINDS SW 7-14 MPH. W 16-22 MPH. MIXING HEIGHT NEAR SURFACE. 7500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR SUN MAY 19 FAIR. OUTLOOK FOR MON MAY 20 FAIR. VENTILATION INDEX (CATEGORY) 153 (POOR). 935 (GOOD). OUTLOOK FOR SUN MAY 19 677 (GOOD). OUTLOOK FOR MON MAY 20 471 (FAIR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 975 (GOOD) ELLENSBURG 1050 (GOOD) GOLDENDALE 952 (GOOD) TRI-CITIES 846 (GOOD) WALLA WALLA 922 (GOOD) YAKIMA 853 (GOOD) BEND 716 (GOOD) PRINEVILLE 825 (GOOD) ENTERPRISE 989 (GOOD) HERMISTON 1050 (GOOD) JOHN DAY 878 (GOOD) LA GRANDE 983 (GOOD) MADRAS 657 (GOOD) MEACHAM 862 (GOOD) PENDLETON 1041 (GOOD) REDMOND 826 (GOOD) SENECA 1049 (GOOD) THE DALLES 1023 (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. $$