Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Issued by NWS Pendleton, OR
315 AUUS46 KPDT 021121 DDOPDT DAILY DISPERSION OUTLOOK NATIONAL WEATHER SERVICE PENDLETON OR 421 AM PDT THU MAY 2 2024 *** AIR DISPERSION CATEGORIES: GOOD, FAIR, POOR *** FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO 7:00 AM AFTERNOON SURFACE WINDS SE 2-5 MPH. NW 4-8 MPH. TRANSPORT WINDS S 2-6 MPH. NE 6-8 MPH. MIXING HEIGHT NEAR SURFACE. 8000 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 3 GOOD. OUTLOOK FOR SAT MAY 4 FAIR. VENTILATION INDEX (CATEGORY) 25 (POOR). 447 (FAIR). OUTLOOK FOR FRI MAY 3 697 (GOOD). OUTLOOK FOR SAT MAY 4 242 (POOR). FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP... SELAH...AND NACHES AREA 7:00 AM AFTERNOON SURFACE WINDS W 2-5 MPH. SE 3-6 MPH. TRANSPORT WINDS NW 3-6 MPH. NE 6-8 MPH. MIXING HEIGHT NEAR SURFACE. 9000 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 3 GOOD. OUTLOOK FOR SAT MAY 4 FAIR. VENTILATION INDEX (CATEGORY) 33 (POOR). 530 (FAIR). OUTLOOK FOR FRI MAY 3 943 (GOOD). OUTLOOK FOR SAT MAY 4 225 (POOR). FOR THE GRANDE RONDE RIVER VALLEY 7:00 AM AFTERNOON SURFACE WINDS NE 2-4 MPH. N 5-6 MPH. TRANSPORT WINDS E 3-6 MPH. NE 6-8 MPH. MIXING HEIGHT NEAR SURFACE. 8000 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 3 GOOD. OUTLOOK FOR SAT MAY 4 GOOD. VENTILATION INDEX (CATEGORY) 65 (POOR). 218 (POOR). OUTLOOK FOR FRI MAY 3 810 (GOOD). OUTLOOK FOR SAT MAY 4 1018 (GOOD). FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS 7:00 AM AFTERNOON SURFACE WINDS SE 3-6 MPH. N 5-8 MPH. TRANSPORT WINDS SE 5-9 MPH. NE 7-9 MPH. MIXING HEIGHT NEAR SURFACE. 6500 FT MSL. DISPERSION CATEGORY POOR. FAIR. OUTLOOK FOR FRI MAY 3 GOOD. OUTLOOK FOR SAT MAY 4 FAIR. VENTILATION INDEX (CATEGORY) 39 (POOR). 379 (FAIR). OUTLOOK FOR FRI MAY 3 664 (GOOD). OUTLOOK FOR SAT MAY 4 382 (FAIR). SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES CLE ELUM 633 (GOOD) ELLENSBURG 652 (GOOD) GOLDENDALE 328 (FAIR) TRI-CITIES 515 (FAIR) WALLA WALLA 454 (FAIR) YAKIMA 671 (GOOD) BEND 319 (FAIR) PRINEVILLE 284 (POOR) ENTERPRISE 332 (FAIR) HERMISTON 401 (FAIR) JOHN DAY 213 (POOR) LA GRANDE 244 (POOR) MADRAS 254 (POOR) MEACHAM 291 (POOR) PENDLETON 323 (FAIR) REDMOND 251 (POOR) SENECA 278 (POOR) THE DALLES 262 (POOR) 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. $$