Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 151100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT TUE APR 15 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 8-15 MPH.        W 17-23 MPH.
TRANSPORT WINDS               SW 8-15 MPH.        NW 17-23 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR WED APR 16        GOOD.

VENTILATION INDEX (CATEGORY)  54 (POOR).          1050 (GOOD).
OUTLOOK FOR WED APR 16        907 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 8-15 MPH.        W 17-23 MPH.
TRANSPORT WINDS               NW 8-15 MPH.        NW 22-28 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR WED APR 16        FAIR.

VENTILATION INDEX (CATEGORY)  52 (POOR).          1050 (GOOD).
OUTLOOK FOR WED APR 16        656 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 7-13 MPH.        NW 15-20 MPH.
TRANSPORT WINDS               NW 7-13 MPH.        NW 20-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED APR 16        FAIR.

VENTILATION INDEX (CATEGORY)  27 (POOR).          991 (GOOD).
OUTLOOK FOR WED APR 16        393 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM     1050 (GOOD)
ELLENSBURG   1050 (GOOD)
GOLDENDALE    932 (GOOD)
TRI-CITIES   1050 (GOOD)
WALLA WALLA  1050 (GOOD)
YAKIMA       1050 (GOOD)
BEND          531 (FAIR)
ENTERPRISE    991 (GOOD)
HERMISTON    1050 (GOOD)
JOHN DAY      936 (GOOD)
LA GRANDE    1050 (GOOD)
MADRAS        583 (FAIR)
MEACHAM       905 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND       531 (FAIR)
SENECA        859 (GOOD)
THE DALLES   1039 (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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