731
AUUS46 KPDT 291155
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
455 AM PDT SAT JUN 29 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 3-7 MPH.          N 5-10 MPH.
TRANSPORT WINDS               SW 3-7 MPH.         NW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUN 30        GOOD.
OUTLOOK FOR MON JUL 1         GOOD.

VENTILATION INDEX (CATEGORY)  45 (POOR).          246 (POOR).
OUTLOOK FOR SUN JUN 30        910 (GOOD).
OUTLOOK FOR MON JUL 1         919 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 3-7 MPH.         S 5-7 MPH.
TRANSPORT WINDS               NW 3-7 MPH.         SW 6-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN JUN 30        FAIR.
OUTLOOK FOR MON JUL 1         FAIR.

VENTILATION INDEX (CATEGORY)  51 (POOR).          233 (POOR).
OUTLOOK FOR SUN JUN 30        599 (FAIR).
OUTLOOK FOR MON JUL 1         584 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 1-3 MPH.         N 5-10 MPH.
TRANSPORT WINDS               N 2-4 MPH.          S 9-13 MPH.
MIXING HEIGHT                 4000 FT MSL.        8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUN 30        GOOD.
OUTLOOK FOR MON JUL 1         GOOD.

VENTILATION INDEX (CATEGORY)  38 (POOR).          234 (POOR).
OUTLOOK FOR SUN JUN 30        620 (GOOD).
OUTLOOK FOR MON JUL 1         819 (GOOD).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 3-7 MPH.         N 5-10 MPH.
TRANSPORT WINDS               S 3-7 MPH.          NW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUN 30        GOOD.
OUTLOOK FOR MON JUL 1         GOOD.

VENTILATION INDEX (CATEGORY)  44 (POOR).          181 (POOR).
OUTLOOK FOR SUN JUN 30        820 (GOOD).
OUTLOOK FOR MON JUL 1         886 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      436 (FAIR)
ELLENSBURG    411 (FAIR)
GOLDENDALE    486 (FAIR)
TRI-CITIES    206 (POOR)
WALLA WALLA   157 (POOR)
YAKIMA        251 (POOR)
BEND          425 (FAIR)
PRINEVILLE    520 (FAIR)
ENTERPRISE    480 (FAIR)
HERMISTON     221 (POOR)
JOHN DAY      410 (FAIR)
LA GRANDE     151 (POOR)
MADRAS        308 (FAIR)
MEACHAM       116 (POOR)
PENDLETON     238 (POOR)
REDMOND       564 (FAIR)
SENECA        801 (GOOD)
THE DALLES    585 (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.
$$