575
AUUS46 KPDT 071141
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
441 AM PDT FRI JUN 7 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 2-6 MPH.         N 4-8 MPH.
TRANSPORT WINDS               W 4-8 MPH.          N 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT JUN 8         FAIR.
OUTLOOK FOR SUN JUN 9         FAIR.

VENTILATION INDEX (CATEGORY)  49 (POOR).          241 (POOR).
OUTLOOK FOR SAT JUN 8         283 (POOR).
OUTLOOK FOR SUN JUN 9         336 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 2-6 MPH.         E 3-7 MPH.
TRANSPORT WINDS               NW 5-10 MPH.        NE 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT JUN 8         POOR.
OUTLOOK FOR SUN JUN 9         FAIR.

VENTILATION INDEX (CATEGORY)  71 (POOR).          275 (POOR).
OUTLOOK FOR SAT JUN 8         220 (POOR).
OUTLOOK FOR SUN JUN 9         336 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 2-4 MPH.         N 7-12 MPH.
TRANSPORT WINDS               NW 3-6 MPH.         N 9-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT JUN 8         FAIR.
OUTLOOK FOR SUN JUN 9         FAIR.

VENTILATION INDEX (CATEGORY)  55 (POOR).          290 (POOR).
OUTLOOK FOR SAT JUN 8         308 (FAIR).
OUTLOOK FOR SUN JUN 9         324 (FAIR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 3-7 MPH.          N 5-10 MPH.
TRANSPORT WINDS               SW 6-11 MPH.        N 7-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT JUN 8         FAIR.
OUTLOOK FOR SUN JUN 9         FAIR.

VENTILATION INDEX (CATEGORY)  55 (POOR).          168 (POOR).
OUTLOOK FOR SAT JUN 8         249 (POOR).
OUTLOOK FOR SUN JUN 9         264 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      299 (POOR)
ELLENSBURG    223 (POOR)
GOLDENDALE    390 (FAIR)
TRI-CITIES    300 (POOR)
WALLA WALLA   105 (POOR)
YAKIMA        275 (POOR)
BEND          276 (POOR)
PRINEVILLE    276 (POOR)
ENTERPRISE    251 (POOR)
HERMISTON     258 (POOR)
JOHN DAY      329 (FAIR)
LA GRANDE     289 (POOR)
MADRAS        330 (FAIR)
MEACHAM       151 (POOR)
PENDLETON     225 (POOR)
REDMOND       296 (POOR)
SENECA        477 (FAIR)
THE DALLES    280 (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.
$$