063
AUUS46 KPDT 121109
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
409 AM PDT MON AUG 12 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 8-15 MPH.        SW 13-18 MPH.
TRANSPORT WINDS               SW 8-15 MPH.        SW 15-19 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           FAIR.               FAIR.
OUTLOOK FOR TUE AUG 13        FAIR.
OUTLOOK FOR WED AUG 14        FAIR.

VENTILATION INDEX (CATEGORY)  187 (POOR).         686 (GOOD).
OUTLOOK FOR TUE AUG 13        629 (GOOD).
OUTLOOK FOR WED AUG 14        434 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-8 MPH.          SW 7-12 MPH.
TRANSPORT WINDS               W 4-8 MPH.          SW 7-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE AUG 13        FAIR.
OUTLOOK FOR WED AUG 14        POOR.

VENTILATION INDEX (CATEGORY)  80 (POOR).          464 (FAIR).
OUTLOOK FOR TUE AUG 13        268 (POOR).
OUTLOOK FOR WED AUG 14        170 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 2-3 MPH.         NW 6-8 MPH.
TRANSPORT WINDS               NW 4-8 MPH.         W 9-10 MPH.
MIXING HEIGHT                 4000 FT MSL.        10500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR TUE AUG 13        GOOD.
OUTLOOK FOR WED AUG 14        GOOD.

VENTILATION INDEX (CATEGORY)  99 (POOR).          475 (FAIR).
OUTLOOK FOR TUE AUG 13        293 (POOR).
OUTLOOK FOR WED AUG 14        318 (FAIR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 8-15 MPH.        W 11-14 MPH.
TRANSPORT WINDS               SW 8-15 MPH.        W 10-17 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           FAIR.               FAIR.
OUTLOOK FOR TUE AUG 13        FAIR.
OUTLOOK FOR WED AUG 14        FAIR.

VENTILATION INDEX (CATEGORY)  183 (POOR).         535 (FAIR).
OUTLOOK FOR TUE AUG 13        443 (FAIR).
OUTLOOK FOR WED AUG 14        346 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      446 (FAIR)
ELLENSBURG    559 (FAIR)
GOLDENDALE    601 (GOOD)
TRI-CITIES    789 (GOOD)
WALLA WALLA   599 (FAIR)
YAKIMA        368 (FAIR)
BEND          771 (GOOD)
PRINEVILLE    613 (GOOD)
ENTERPRISE    581 (FAIR)
HERMISTON     705 (GOOD)
JOHN DAY     1028 (GOOD)
LA GRANDE     532 (FAIR)
MADRAS        593 (FAIR)
MEACHAM       327 (FAIR)
PENDLETON     592 (FAIR)
REDMOND       556 (FAIR)
SENECA       1050 (GOOD)
THE DALLES    730 (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.
$$