837
AUUS46 KPDT 261222
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
522 AM PDT WED JUN 26 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 4-9 MPH.         W 20-28 MPH.
TRANSPORT WINDS               SW 5-9 MPH.         W 20-29 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUN 27        GOOD.
OUTLOOK FOR FRI JUN 28        POOR.

VENTILATION INDEX (CATEGORY)  83 (POOR).          1028 (GOOD).
OUTLOOK FOR THU JUN 27        1050 (GOOD).
OUTLOOK FOR FRI JUN 28        251 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 3-7 MPH.         W 16-22 MPH.
TRANSPORT WINDS               NW 4-7 MPH.         W 18-26 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUN 27        GOOD.
OUTLOOK FOR FRI JUN 28        POOR.

VENTILATION INDEX (CATEGORY)  80 (POOR).          1031 (GOOD).
OUTLOOK FOR THU JUN 27        1048 (GOOD).
OUTLOOK FOR FRI JUN 28        235 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 3-6 MPH.          NW 10-17 MPH.
TRANSPORT WINDS               S 4-8 MPH.          NW 12-20 MPH.
MIXING HEIGHT                 4000 FT MSL.        8000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUN 27        GOOD.
OUTLOOK FOR FRI JUN 28        GOOD.

VENTILATION INDEX (CATEGORY)  136 (POOR).         766 (GOOD).
OUTLOOK FOR THU JUN 27        977 (GOOD).
OUTLOOK FOR FRI JUN 28        263 (POOR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 4-8 MPH.          W 18-25 MPH.
TRANSPORT WINDS               S 6-8 MPH.          W 20-26 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUN 27        GOOD.
OUTLOOK FOR FRI JUN 28        FAIR.

VENTILATION INDEX (CATEGORY)  87 (POOR).          931 (GOOD).
OUTLOOK FOR THU JUN 27        1046 (GOOD).
OUTLOOK FOR FRI JUN 28        230 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      720 (GOOD)
ELLENSBURG    768 (GOOD)
GOLDENDALE    957 (GOOD)
TRI-CITIES   1050 (GOOD)
WALLA WALLA  1043 (GOOD)
YAKIMA        920 (GOOD)
BEND         1050 (GOOD)
PRINEVILLE   1050 (GOOD)
ENTERPRISE   1050 (GOOD)
HERMISTON    1049 (GOOD)
JOHN DAY     1050 (GOOD)
LA GRANDE     816 (GOOD)
MADRAS        920 (GOOD)
MEACHAM       537 (FAIR)
PENDLETON     961 (GOOD)
REDMOND      1050 (GOOD)
SENECA       1050 (GOOD)
THE DALLES   1046 (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.
$$