Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 161119
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
420 AM PDT TUE SEP 16 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 3-7 MPH.        W 5-10 MPH.
TRANSPORT WINDS               VRB 3-7 MPH.        SW 6-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED SEP 17        FAIR.

VENTILATION INDEX (CATEGORY)  28 (POOR).          415 (FAIR).
OUTLOOK FOR WED SEP 17        445 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-8 MPH.          W 4-9 MPH.
TRANSPORT WINDS               W 4-8 MPH.          SW 6-11 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED SEP 17        FAIR.

VENTILATION INDEX (CATEGORY)  26 (POOR).          334 (FAIR).
OUTLOOK FOR WED SEP 17        362 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 3-6 MPH.        S 5-10 MPH.
TRANSPORT WINDS               VRB 3-6 MPH.        SW 7-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       13000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED SEP 17        GOOD.

VENTILATION INDEX (CATEGORY)  58 (POOR).          1050 (GOOD).
OUTLOOK FOR WED SEP 17        1023 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      375 (FAIR)
ELLENSBURG    405 (FAIR)
GOLDENDALE    330 (FAIR)
TRI-CITIES    362 (FAIR)
WALLA WALLA   405 (FAIR)
YAKIMA        418 (FAIR)
BEND         1050 (GOOD)
ENTERPRISE   1050 (GOOD)
HERMISTON     361 (FAIR)
JOHN DAY     1050 (GOOD)
LA GRANDE    1050 (GOOD)
MADRAS       1017 (GOOD)
MEACHAM      1050 (GOOD)
PENDLETON     438 (FAIR)
REDMOND      1050 (GOOD)
SENECA       1050 (GOOD)
THE DALLES    426 (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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