947
AUUS46 KPDT 191132
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
432 AM PDT THU SEP 19 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 5-10 MPH. SW 10-15 MPH.
TRANSPORT WINDS SW 5-10 MPH. W 12-18 MPH.
MIXING HEIGHT NEAR SURFACE. 5500 FT MSL.
DISPERSION CATEGORY POOR. FAIR.
OUTLOOK FOR FRI SEP 20 FAIR.
OUTLOOK FOR SAT SEP 21 POOR.
VENTILATION INDEX (CATEGORY) 39 (POOR). 495 (FAIR).
OUTLOOK FOR FRI SEP 20 391 (FAIR).
OUTLOOK FOR SAT SEP 21 154 (POOR).
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
7:00 AM AFTERNOON
SURFACE WINDS NW 2-5 MPH. NW 5-10 MPH.
TRANSPORT WINDS NW 3-6 MPH. NW 7-14 MPH.
MIXING HEIGHT NEAR SURFACE. 6000 FT MSL.
DISPERSION CATEGORY POOR. FAIR.
OUTLOOK FOR FRI SEP 20 FAIR.
OUTLOOK FOR SAT SEP 21 POOR.
VENTILATION INDEX (CATEGORY) 26 (POOR). 193 (POOR).
OUTLOOK FOR FRI SEP 20 269 (POOR).
OUTLOOK FOR SAT SEP 21 132 (POOR).
FOR THE GRANDE RONDE RIVER VALLEY
7:00 AM AFTERNOON
SURFACE WINDS S 2-4 MPH. NW 4-8 MPH.
TRANSPORT WINDS S 2-4 MPH. W 6-12 MPH.
MIXING HEIGHT NEAR SURFACE. 10500 FT MSL.
DISPERSION CATEGORY POOR. GOOD.
OUTLOOK FOR FRI SEP 20 FAIR.
OUTLOOK FOR SAT SEP 21 FAIR.
VENTILATION INDEX (CATEGORY) 26 (POOR). 611 (GOOD).
OUTLOOK FOR FRI SEP 20 424 (FAIR).
OUTLOOK FOR SAT SEP 21 336 (FAIR).
FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS
7:00 AM AFTERNOON
SURFACE WINDS SW 5-10 MPH. SW 7-14 MPH.
TRANSPORT WINDS SW 5-10 MPH. W 12-18 MPH.
MIXING HEIGHT NEAR SURFACE. 6500 FT MSL.
DISPERSION CATEGORY POOR. FAIR.
OUTLOOK FOR FRI SEP 20 FAIR.
OUTLOOK FOR SAT SEP 21 POOR.
VENTILATION INDEX (CATEGORY) 46 (POOR). 482 (FAIR).
OUTLOOK FOR FRI SEP 20 431 (FAIR).
OUTLOOK FOR SAT SEP 21 180 (POOR).
SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM 357 (FAIR)
ELLENSBURG 444 (FAIR)
GOLDENDALE 345 (FAIR)
TRI-CITIES 448 (FAIR)
WALLA WALLA 477 (FAIR)
YAKIMA 184 (POOR)
BEND 386 (FAIR)
PRINEVILLE 415 (FAIR)
ENTERPRISE 502 (FAIR)
HERMISTON 530 (FAIR)
JOHN DAY 535 (FAIR)
LA GRANDE 625 (GOOD)
MADRAS 365 (FAIR)
MEACHAM 478 (FAIR)
PENDLETON 417 (FAIR)
REDMOND 403 (FAIR)
SENECA 452 (FAIR)
THE DALLES 517 (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.
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