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382
AUUS46 KPDT 301100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT SAT AUG 30 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 4-8 MPH.         SW-W 12-20 MPH.
TRANSPORT WINDS               SW 4-8 MPH.         W 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 31        GOOD.

VENTILATION INDEX (CATEGORY)  31 (POOR).          1045 (GOOD).
OUTLOOK FOR SUN AUG 31        760 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 4-8 MPH.         W 10-15 MPH.
TRANSPORT WINDS               NW 4-8 MPH.         W 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 31        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          836 (GOOD).
OUTLOOK FOR SUN AUG 31        401 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-10 MPH.        NW 5-10 MPH.
TRANSPORT WINDS               NW 5-10 MPH.        W 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 31        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          665 (GOOD).
OUTLOOK FOR SUN AUG 31        430 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      407 (FAIR)
ELLENSBURG    840 (GOOD)
GOLDENDALE    983 (GOOD)
TRI-CITIES   1029 (GOOD)
WALLA WALLA   994 (GOOD)
YAKIMA        685 (GOOD)
BEND          700 (GOOD)
ENTERPRISE    749 (GOOD)
HERMISTON    1050 (GOOD)
JOHN DAY      631 (GOOD)
LA GRANDE     684 (GOOD)
MADRAS        795 (GOOD)
MEACHAM       696 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND       823 (GOOD)
SENECA        609 (GOOD)
THE DALLES    860 (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/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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