Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
852 AUUS46 KPDT 291054 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 354 AM PDT WED MAY 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 11-20 MPH. W 18-25 MPH. TRANSPORT WINDS SW 10-19 MPH. W 21-27 MPH. MIXING HEIGHT NEAR SURFACE. 9500 FT MSL. DISPERSION CATEGORY FAIR. GOOD. OUTLOOK FOR THU MAY 30 FAIR. OUTLOOK FOR FRI MAY 31 FAIR. VENTILATION INDEX (CATEGORY) 258 (POOR). 1050 (GOOD). OUTLOOK FOR THU MAY 30 429 (FAIR). OUTLOOK FOR FRI MAY 31 244 (POOR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS W 4-8 MPH. W 14-19 MPH. TRANSPORT WINDS W 5-10 MPH. W 20-24 MPH. MIXING HEIGHT NEAR SURFACE. 9500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR THU MAY 30 FAIR. OUTLOOK FOR FRI MAY 31 FAIR. VENTILATION INDEX (CATEGORY) 161 (POOR). 1050 (GOOD). OUTLOOK FOR THU MAY 30 385 (FAIR). OUTLOOK FOR FRI MAY 31 248 (POOR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS NW 6-11 MPH. NW 15-18 MPH. TRANSPORT WINDS W 10-13 MPH. W 18-21 MPH. MIXING HEIGHT 4500 FT MSL. 9000 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR THU MAY 30 GOOD. OUTLOOK FOR FRI MAY 31 GOOD. VENTILATION INDEX (CATEGORY) 311 (FAIR). 964 (GOOD). OUTLOOK FOR THU MAY 30 429 (FAIR). OUTLOOK FOR FRI MAY 31 404 (FAIR). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SW 11-19 MPH. W 17-24 MPH. TRANSPORT WINDS SW 13-18 MPH. W 22-25 MPH. MIXING HEIGHT NEAR SURFACE. 8000 FT MSL. DISPERSION CATEGORY FAIR. GOOD. OUTLOOK FOR THU MAY 30 FAIR. OUTLOOK FOR FRI MAY 31 FAIR. VENTILATION INDEX (CATEGORY) 313 (FAIR). 1050 (GOOD). OUTLOOK FOR THU MAY 30 442 (FAIR). OUTLOOK FOR FRI MAY 31 289 (POOR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 1050 (GOOD) ELLENSBURG 1050 (GOOD) GOLDENDALE 1050 (GOOD) TRI-CITIES 1050 (GOOD) WALLA WALLA 1050 (GOOD) YAKIMA 1050 (GOOD) BEND 588 (FAIR) PRINEVILLE 924 (GOOD) ENTERPRISE 1035 (GOOD) HERMISTON 1050 (GOOD) JOHN DAY 960 (GOOD) LA GRANDE 968 (GOOD) MADRAS 889 (GOOD) MEACHAM 972 (GOOD) PENDLETON 1050 (GOOD) REDMOND 929 (GOOD) SENECA 910 (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. $$