Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
384 AUUS46 KPDT 291143 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 443 AM PDT MON APR 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 13-22 MPH. W 22-32 MPH. TRANSPORT WINDS SW 13-22 MPH. W 25-33 MPH. MIXING HEIGHT NEAR SURFACE. 8500 FT MSL. DISPERSION CATEGORY GOOD. GOOD. OUTLOOK FOR TUE APR 30 GOOD. OUTLOOK FOR WED MAY 1 GOOD. VENTILATION INDEX (CATEGORY) 338 (FAIR). 1050 (GOOD). OUTLOOK FOR TUE APR 30 992 (GOOD). OUTLOOK FOR WED MAY 1 710 (GOOD). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS SW 7-16 MPH. W 18-22 MPH. TRANSPORT WINDS SW 7-16 MPH. W 23-26 MPH. MIXING HEIGHT NEAR SURFACE. 10000 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR TUE APR 30 GOOD. OUTLOOK FOR WED MAY 1 FAIR. VENTILATION INDEX (CATEGORY) 271 (POOR). 1050 (GOOD). OUTLOOK FOR TUE APR 30 610 (GOOD). OUTLOOK FOR WED MAY 1 450 (FAIR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS W 6-8 MPH. W 17-20 MPH. TRANSPORT WINDS W 9-12 MPH. W 25-28 MPH. MIXING HEIGHT 4500 FT MSL. 8500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR TUE APR 30 GOOD. OUTLOOK FOR WED MAY 1 GOOD. VENTILATION INDEX (CATEGORY) 311 (FAIR). 1041 (GOOD). OUTLOOK FOR TUE APR 30 851 (GOOD). OUTLOOK FOR WED MAY 1 586 (FAIR). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SW 10-18 MPH. W 20-28 MPH. TRANSPORT WINDS SW 12-21 MPH. W 26-30 MPH. MIXING HEIGHT 2000 FT MSL. 7500 FT MSL. DISPERSION CATEGORY FAIR. GOOD. OUTLOOK FOR TUE APR 30 GOOD. OUTLOOK FOR WED MAY 1 FAIR. VENTILATION INDEX (CATEGORY) 333 (FAIR). 1048 (GOOD). OUTLOOK FOR TUE APR 30 977 (GOOD). OUTLOOK FOR WED MAY 1 691 (GOOD). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 960 (GOOD) ELLENSBURG 1050 (GOOD) GOLDENDALE 1050 (GOOD) TRI-CITIES 1050 (GOOD) WALLA WALLA 1050 (GOOD) YAKIMA 1050 (GOOD) BEND 1050 (GOOD) PRINEVILLE 1050 (GOOD) ENTERPRISE 1050 (GOOD) HERMISTON 1050 (GOOD) JOHN DAY 1050 (GOOD) LA GRANDE 1050 (GOOD) MADRAS 1050 (GOOD) MEACHAM 1050 (GOOD) PENDLETON 1050 (GOOD) REDMOND 1050 (GOOD) SENECA 1050 (GOOD) THE DALLES 1050 (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. $$