Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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AUUS46 KPDT 181147
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
447 AM PDT TUE JUN 18 2013

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 8-13 MPH.        W 10-15 MPH.
TRANSPORT WINDS               SW 9-12 MPH.        W 7-10 MPH.
MIXING HEIGHT                 2000 FT MSL.        8000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED JUN 19        GOOD.

VENTILATION INDEX (CATEGORY)  106 (POOR).         484 (FAIR).
OUTLOOK FOR WED JUN 19        1050 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 7-10 MPH.         W 9-12 MPH.
TRANSPORT WINDS               W 8-11 MPH.         SW 11-14 MPH.
MIXING HEIGHT                 2500 FT MSL.        9500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUN 19        GOOD.

VENTILATION INDEX (CATEGORY)  90 (POOR).          912 (GOOD).
OUTLOOK FOR WED JUN 19        1050 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 8-17 MPH.        NW 11-18 MPH.
TRANSPORT WINDS               NW 5-7 MPH.         N 7-10 MPH.
MIXING HEIGHT                 4000 FT MSL.        7500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED JUN 19        GOOD.

VENTILATION INDEX (CATEGORY)  53 (POOR).          341 (FAIR).
OUTLOOK FOR WED JUN 19        814 (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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