492
AUUS46 KPDT 221116
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
416 AM PDT SAT JUN 22 2024

*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 6-11 MPH.         W 6-11 MPH.
TRANSPORT WINDS               S 6-11 MPH.         SW 8-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUN 23        GOOD.
OUTLOOK FOR MON JUN 24        FAIR.

VENTILATION INDEX (CATEGORY)  72 (POOR).          417 (FAIR).
OUTLOOK FOR SUN JUN 23        968 (GOOD).
OUTLOOK FOR MON JUN 24        560 (FAIR).

FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-7 MPH.         S 6-11 MPH.
TRANSPORT WINDS               NW 5-7 MPH.         SW 11-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUN 23        GOOD.
OUTLOOK FOR MON JUN 24        FAIR.

VENTILATION INDEX (CATEGORY)  52 (POOR).          671 (GOOD).
OUTLOOK FOR SUN JUN 23        903 (GOOD).
OUTLOOK FOR MON JUN 24        317 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 N 2-5 MPH.          N 4-7 MPH.
TRANSPORT WINDS               NW 1-3 MPH.         W 5-9 MPH.
MIXING HEIGHT                 2000 FT MSL.        9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUN 23        GOOD.
OUTLOOK FOR MON JUN 24        GOOD.

VENTILATION INDEX (CATEGORY)  29 (POOR).          250 (POOR).
OUTLOOK FOR SUN JUN 23        502 (FAIR).
OUTLOOK FOR MON JUN 24        401 (FAIR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 7-10 MPH.        NW 6-8 MPH.
TRANSPORT WINDS               SE 7-10 MPH.        W 7-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUN 23        GOOD.
OUTLOOK FOR MON JUN 24        FAIR.

VENTILATION INDEX (CATEGORY)  65 (POOR).          258 (POOR).
OUTLOOK FOR SUN JUN 23        759 (GOOD).
OUTLOOK FOR MON JUN 24        468 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      582 (FAIR)
ELLENSBURG    548 (FAIR)
GOLDENDALE    676 (GOOD)
TRI-CITIES    587 (FAIR)
WALLA WALLA   246 (POOR)
YAKIMA        638 (GOOD)
BEND          843 (GOOD)
PRINEVILLE    652 (GOOD)
ENTERPRISE    551 (FAIR)
HERMISTON     422 (FAIR)
JOHN DAY     1050 (GOOD)
LA GRANDE     290 (POOR)
MADRAS        522 (FAIR)
MEACHAM       206 (POOR)
PENDLETON     330 (FAIR)
REDMOND       588 (FAIR)
SENECA       1050 (GOOD)
THE DALLES    732 (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.

$$