Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
108 AUUS46 KPDT 181223 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 523 AM PDT WED SEP 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. SW 5-10 MPH. TRANSPORT WINDS SW 8-16 MPH. SW 5-10 MPH. MIXING HEIGHT NEAR SURFACE. 5500 FT MSL. DISPERSION CATEGORY FAIR. FAIR. OUTLOOK FOR THU SEP 19 FAIR. OUTLOOK FOR FRI SEP 20 FAIR. VENTILATION INDEX (CATEGORY) 103 (POOR). 405 (FAIR). OUTLOOK FOR THU SEP 19 405 (FAIR). OUTLOOK FOR FRI SEP 20 394 (FAIR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS NW 3-8 MPH. NW 4-8 MPH. TRANSPORT WINDS NW 5-8 MPH. NW 5-10 MPH. MIXING HEIGHT NEAR SURFACE. 7000 FT MSL. DISPERSION CATEGORY POOR. POOR. OUTLOOK FOR THU SEP 19 POOR. OUTLOOK FOR FRI SEP 20 FAIR. VENTILATION INDEX (CATEGORY) 51 (POOR). 224 (POOR). OUTLOOK FOR THU SEP 19 143 (POOR). OUTLOOK FOR FRI SEP 20 239 (POOR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS S 2-4 MPH. NW 3-6 MPH. TRANSPORT WINDS W 3-6 MPH. NW 3-6 MPH. MIXING HEIGHT NEAR SURFACE. 8500 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR THU SEP 19 GOOD. OUTLOOK FOR FRI SEP 20 FAIR. VENTILATION INDEX (CATEGORY) 61 (POOR). 249 (POOR). OUTLOOK FOR THU SEP 19 345 (FAIR). OUTLOOK FOR FRI SEP 20 363 (FAIR). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SW 6-12 MPH. W 5-10 MPH. TRANSPORT WINDS SW 8-16 MPH. W 6-12 MPH. MIXING HEIGHT NEAR SURFACE. 5500 FT MSL. DISPERSION CATEGORY FAIR. FAIR. OUTLOOK FOR THU SEP 19 FAIR. OUTLOOK FOR FRI SEP 20 FAIR. VENTILATION INDEX (CATEGORY) 126 (POOR). 365 (FAIR). OUTLOOK FOR THU SEP 19 392 (FAIR). OUTLOOK FOR FRI SEP 20 428 (FAIR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 412 (FAIR) ELLENSBURG 489 (FAIR) GOLDENDALE 383 (FAIR) TRI-CITIES 349 (FAIR) WALLA WALLA 422 (FAIR) YAKIMA 225 (POOR) BEND 140 (POOR) PRINEVILLE 166 (POOR) ENTERPRISE 305 (FAIR) HERMISTON 412 (FAIR) JOHN DAY 177 (POOR) LA GRANDE 293 (POOR) MADRAS 128 (POOR) MEACHAM 199 (POOR) PENDLETON 421 (FAIR) REDMOND 142 (POOR) SENECA 246 (POOR) THE DALLES 462 (FAIR) 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. $$