009
AUUS46 KPDT 061148
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
448 AM PDT SAT JUL 6 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 4-9 MPH.          NW 7-10 MPH.
TRANSPORT WINDS               SW 4-9 MPH.         NW 8-11 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUL 7         POOR.
OUTLOOK FOR MON JUL 8         FAIR.

VENTILATION INDEX (CATEGORY)  77 (POOR).          493 (FAIR).
OUTLOOK FOR SUN JUL 7         256 (POOR).
OUTLOOK FOR MON JUL 8         286 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 5-11 MPH.         NW 5-10 MPH.
TRANSPORT WINDS               NW 5-11 MPH.        NW 7-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUL 7         FAIR.
OUTLOOK FOR MON JUL 8         POOR.

VENTILATION INDEX (CATEGORY)  93 (POOR).          465 (FAIR).
OUTLOOK FOR SUN JUL 7         289 (POOR).
OUTLOOK FOR MON JUL 8         221 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 2-4 MPH.         NW 12-16 MPH.
TRANSPORT WINDS               SW 5-7 MPH.         NW 15-18 MPH.
MIXING HEIGHT                 4000 FT MSL.        10000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUL 7         GOOD.
OUTLOOK FOR MON JUL 8         GOOD.

VENTILATION INDEX (CATEGORY)  93 (POOR).          827 (GOOD).
OUTLOOK FOR SUN JUL 7         173 (POOR).
OUTLOOK FOR MON JUL 8         367 (FAIR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 6-12 MPH.         NW 8-11 MPH.
TRANSPORT WINDS               SW 6-12 MPH.        NW 9-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUL 7         POOR.
OUTLOOK FOR MON JUL 8         FAIR.

VENTILATION INDEX (CATEGORY)  115 (POOR).         555 (FAIR).
OUTLOOK FOR SUN JUL 7         230 (POOR).
OUTLOOK FOR MON JUL 8         327 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      551 (FAIR)
ELLENSBURG    631 (GOOD)
GOLDENDALE    453 (FAIR)
TRI-CITIES    491 (FAIR)
WALLA WALLA   466 (FAIR)
YAKIMA        506 (FAIR)
BEND         1009 (GOOD)
PRINEVILLE    851 (GOOD)
ENTERPRISE   1033 (GOOD)
HERMISTON     442 (FAIR)
JOHN DAY     1050 (GOOD)
LA GRANDE     909 (GOOD)
MADRAS        728 (GOOD)
MEACHAM       531 (FAIR)
PENDLETON     552 (FAIR)
REDMOND       854 (GOOD)
SENECA       1050 (GOOD)
THE DALLES    567 (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.
$$