101
AUUS46 KPDT 251147
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
447 AM PDT TUE JUN 25 2024

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SSE 2-5 MPH.        N 7-11 MPH.
TRANSPORT WINDS               SSE 1-5 MPH.        NE 7-11 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED JUN 26        GOOD.
OUTLOOK FOR THU JUN 27        GOOD.

VENTILATION INDEX (CATEGORY)  29 (POOR).          305 (FAIR).
OUTLOOK FOR WED JUN 26        871 (GOOD).
OUTLOOK FOR THU JUN 27        1050 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 2-5 MPH.         E 4-8 MPH.
TRANSPORT WINDS               NW 2-5 MPH.         SE 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED JUN 26        GOOD.
OUTLOOK FOR THU JUN 27        GOOD.

VENTILATION INDEX (CATEGORY)  55 (POOR).          309 (FAIR).
OUTLOOK FOR WED JUN 26        852 (GOOD).
OUTLOOK FOR THU JUN 27        1039 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 N 1-3 MPH.          N 3-5 MPH.
TRANSPORT WINDS               N 4-5 MPH.          NW 3-7 MPH.
MIXING HEIGHT                 4000 FT MSL.        8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUN 26        FAIR.
OUTLOOK FOR THU JUN 27        GOOD.

VENTILATION INDEX (CATEGORY)  57 (POOR).          181 (POOR).
OUTLOOK FOR WED JUN 26        459 (FAIR).
OUTLOOK FOR THU JUN 27        998 (GOOD).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-5 MPH.         N 6-10 MPH.
TRANSPORT WINDS               SE 2-5 MPH.         NE 6-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED JUN 26        GOOD.
OUTLOOK FOR THU JUN 27        GOOD.

VENTILATION INDEX (CATEGORY)  33 (POOR).          241 (POOR).
OUTLOOK FOR WED JUN 26        684 (GOOD).
OUTLOOK FOR THU JUN 27        1039 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      722 (GOOD)
ELLENSBURG    548 (FAIR)
GOLDENDALE    354 (FAIR)
TRI-CITIES    260 (POOR)
WALLA WALLA   219 (POOR)
YAKIMA        360 (FAIR)
BEND          980 (GOOD)
PRINEVILLE    585 (FAIR)
ENTERPRISE    415 (FAIR)
HERMISTON     303 (FAIR)
JOHN DAY      893 (GOOD)
LA GRANDE     106 (POOR)
MADRAS        270 (POOR)
MEACHAM       141 (POOR)
PENDLETON     322 (FAIR)
REDMOND       428 (FAIR)
SENECA       1050 (GOOD)
THE DALLES    226 (POOR)

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.
$$