Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
083 AUUS46 KPDT 091215 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 515 AM PDT THU MAY 9 2024 *** AIR DISPERSION CATEGORIES: GOOD, FAIR, POOR *** FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO 7:00 AM AFTERNOON SURFACE WINDS E 3-6 MPH. NE 13-18 MPH. TRANSPORT WINDS E 3-7 MPH. NE 15-18 MPH. MIXING HEIGHT NEAR SURFACE. 6500 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 10 POOR. OUTLOOK FOR SAT MAY 11 GOOD. VENTILATION INDEX (CATEGORY) 42 (POOR). 620 (GOOD). OUTLOOK FOR FRI MAY 10 145 (POOR). OUTLOOK FOR SAT MAY 11 458 (FAIR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS NW 3-7 MPH. NE 13-15 MPH. TRANSPORT WINDS NW 4-8 MPH. NE 15-18 MPH. MIXING HEIGHT NEAR SURFACE. 7500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR FRI MAY 10 FAIR. OUTLOOK FOR SAT MAY 11 FAIR. VENTILATION INDEX (CATEGORY) 48 (POOR). 730 (GOOD). OUTLOOK FOR FRI MAY 10 324 (FAIR). OUTLOOK FOR SAT MAY 11 346 (FAIR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS N 5-9 MPH. N 11-14 MPH. TRANSPORT WINDS N 8-12 MPH. NE 14-17 MPH. MIXING HEIGHT NEAR SURFACE. 8000 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 10 POOR. OUTLOOK FOR SAT MAY 11 GOOD. VENTILATION INDEX (CATEGORY) 129 (POOR). 629 (GOOD). OUTLOOK FOR FRI MAY 10 212 (POOR). OUTLOOK FOR SAT MAY 11 555 (FAIR). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS E 1-5 MPH. N 10-15 MPH. TRANSPORT WINDS E 5-11 MPH. NE 13-19 MPH. MIXING HEIGHT NEAR SURFACE. 5500 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 10 POOR. OUTLOOK FOR SAT MAY 11 GOOD. VENTILATION INDEX (CATEGORY) 60 (POOR). 488 (FAIR). OUTLOOK FOR FRI MAY 10 132 (POOR). OUTLOOK FOR SAT MAY 11 519 (FAIR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 780 (GOOD) ELLENSBURG 833 (GOOD) GOLDENDALE 945 (GOOD) TRI-CITIES 725 (GOOD) WALLA WALLA 462 (FAIR) YAKIMA 853 (GOOD) BEND 620 (GOOD) PRINEVILLE 648 (GOOD) ENTERPRISE 529 (FAIR) HERMISTON 670 (GOOD) JOHN DAY 506 (FAIR) LA GRANDE 566 (FAIR) MADRAS 897 (GOOD) MEACHAM 456 (FAIR) PENDLETON 501 (FAIR) REDMOND 709 (GOOD) SENECA 659 (GOOD) THE DALLES 799 (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. $$