632
AUUS46 KPDT 231133
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
433 AM PDT SUN JUN 23 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 13-23 MPH.       W 21-26 MPH.
TRANSPORT WINDS               SW 13-23 MPH.       W 22-27 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           GOOD.               GOOD.
OUTLOOK FOR MON JUN 24        FAIR.
OUTLOOK FOR TUE JUN 25        FAIR.

VENTILATION INDEX (CATEGORY)  323 (FAIR).         920 (GOOD).
OUTLOOK FOR MON JUN 24        323 (FAIR).
OUTLOOK FOR TUE JUN 25        265 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 5-11 MPH.         W 14-19 MPH.
TRANSPORT WINDS               W 5-11 MPH.         W 16-22 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR MON JUN 24        POOR.
OUTLOOK FOR TUE JUN 25        FAIR.

VENTILATION INDEX (CATEGORY)  199 (POOR).         913 (GOOD).
OUTLOOK FOR MON JUN 24        188 (POOR).
OUTLOOK FOR TUE JUN 25        270 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 6-12 MPH.        NW 11-14 MPH.
TRANSPORT WINDS               W 5-9 MPH.          W 14-16 MPH.
MIXING HEIGHT                 4000 FT MSL.        8000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON JUN 24        FAIR.
OUTLOOK FOR TUE JUN 25        GOOD.

VENTILATION INDEX (CATEGORY)  136 (POOR).         565 (FAIR).
OUTLOOK FOR MON JUN 24        286 (POOR).
OUTLOOK FOR TUE JUN 25        184 (POOR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 9-20 MPH.        W 16-23 MPH.
TRANSPORT WINDS               SW 10-22 MPH.       W 16-26 MPH.
MIXING HEIGHT                 2000 FT MSL.        5500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR MON JUN 24        FAIR.
OUTLOOK FOR TUE JUN 25        FAIR.

VENTILATION INDEX (CATEGORY)  272 (POOR).         750 (GOOD).
OUTLOOK FOR MON JUN 24        286 (POOR).
OUTLOOK FOR TUE JUN 25        234 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM     1027 (GOOD)
ELLENSBURG   1050 (GOOD)
GOLDENDALE    870 (GOOD)
TRI-CITIES   1050 (GOOD)
WALLA WALLA   932 (GOOD)
YAKIMA        753 (GOOD)
BEND          709 (GOOD)
PRINEVILLE    535 (FAIR)
ENTERPRISE    599 (FAIR)
HERMISTON     928 (GOOD)
JOHN DAY     1050 (GOOD)
LA GRANDE     675 (GOOD)
MADRAS        755 (GOOD)
MEACHAM       396 (FAIR)
PENDLETON     806 (GOOD)
REDMOND       510 (FAIR)
SENECA       1050 (GOOD)
THE DALLES   1050 (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.

$$