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741
AUUS46 KPDT 021100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT TUE SEP 2 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-6 MPH.         SW-W 12-18 MPH.
TRANSPORT WINDS               SE 2-6 MPH.         SW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED SEP 3         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          849 (GOOD).
OUTLOOK FOR WED SEP 3         496 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 1-5 MPH.         NW 10-15 MPH.
TRANSPORT WINDS               SW 1-5 MPH.         NW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED SEP 3         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          542 (FAIR).
OUTLOOK FOR WED SEP 3         304 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 0-4 MPH.         W 5-10 MPH.
TRANSPORT WINDS               SE 0-4 MPH.         SW 20-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED SEP 3         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          577 (FAIR).
OUTLOOK FOR WED SEP 3         257 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      460 (FAIR)
ELLENSBURG    650 (GOOD)
GOLDENDALE    451 (FAIR)
TRI-CITIES    815 (GOOD)
WALLA WALLA   859 (GOOD)
YAKIMA        522 (FAIR)
BEND          496 (FAIR)
ENTERPRISE    791 (GOOD)
HERMISTON     897 (GOOD)
JOHN DAY      613 (GOOD)
LA GRANDE     611 (GOOD)
MADRAS        467 (FAIR)
MEACHAM       469 (FAIR)
PENDLETON     694 (GOOD)
REDMOND       480 (FAIR)
SENECA        670 (GOOD)
THE DALLES    557 (FAIR)

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/FORECAST/FWXGRAPHICALVENTILATION.PHP?WFO=PDT

IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.

$$






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