Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
540 AUUS46 KPDT 301149 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 449 AM PDT THU MAY 30 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 5-9 MPH. TRANSPORT WINDS SW 7-12 MPH. W 7-9 MPH. MIXING HEIGHT NEAR SURFACE. 7500 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 31 POOR. OUTLOOK FOR SAT JUN 1 GOOD. VENTILATION INDEX (CATEGORY) 112 (POOR). 435 (FAIR). OUTLOOK FOR FRI MAY 31 166 (POOR). OUTLOOK FOR SAT JUN 1 676 (GOOD). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS W 2-5 MPH. NW 3-6 MPH. TRANSPORT WINDS W 5-9 MPH. NW 7-9 MPH. MIXING HEIGHT NEAR SURFACE. 8000 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 31 POOR. OUTLOOK FOR SAT JUN 1 GOOD. VENTILATION INDEX (CATEGORY) 65 (POOR). 432 (FAIR). OUTLOOK FOR FRI MAY 31 191 (POOR). OUTLOOK FOR SAT JUN 1 649 (GOOD). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS W 2-3 MPH. NW 7-10 MPH. TRANSPORT WINDS W 6-8 MPH. NW 10-13 MPH. MIXING HEIGHT NEAR SURFACE. 9000 FT MSL. DISPERSION CATEGORY POOR. GOOD. OUTLOOK FOR FRI MAY 31 FAIR. OUTLOOK FOR SAT JUN 1 GOOD. VENTILATION INDEX (CATEGORY) 126 (POOR). 525 (FAIR). OUTLOOK FOR FRI MAY 31 205 (POOR). OUTLOOK FOR SAT JUN 1 517 (FAIR). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SW 5-10 MPH. W 7-10 MPH. TRANSPORT WINDS SW 8-14 MPH. W 8-11 MPH. MIXING HEIGHT NEAR SURFACE. 6500 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 31 FAIR. OUTLOOK FOR SAT JUN 1 GOOD. VENTILATION INDEX (CATEGORY) 146 (POOR). 438 (FAIR). OUTLOOK FOR FRI MAY 31 221 (POOR). OUTLOOK FOR SAT JUN 1 647 (GOOD). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 665 (GOOD) ELLENSBURG 820 (GOOD) GOLDENDALE 488 (FAIR) TRI-CITIES 421 (FAIR) WALLA WALLA 392 (FAIR) YAKIMA 449 (FAIR) BEND 409 (FAIR) PRINEVILLE 431 (FAIR) ENTERPRISE 551 (FAIR) HERMISTON 347 (FAIR) JOHN DAY 580 (FAIR) LA GRANDE 592 (FAIR) MADRAS 364 (FAIR) MEACHAM 437 (FAIR) PENDLETON 429 (FAIR) REDMOND 396 (FAIR) SENECA 635 (GOOD) THE DALLES 511 (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. $$