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Daily Dispersion Outlook
Issued by NWS Pendleton, OR

000
AUUS46 KPDT 191207
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
505 AM PDT SUN MAY 19 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 4-10 MPH.        W 10-14 MPH.
TRANSPORT WINDS               SW 4-10 MPH.        W 5-12 MPH.
MIXING HEIGHT                 2000 FT MSL.        8500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON MAY 20        POOR.

VENTILATION INDEX (CATEGORY)  92 (POOR).          468 (FAIR).
OUTLOOK FOR MON MAY 20        227 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-9 MPH.          NW 7-12 MPH.
TRANSPORT WINDS               NW 7-14 MPH.        NW 6-12 MPH.
MIXING HEIGHT                 2500 FT MSL.        10000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON MAY 20        FAIR.

VENTILATION INDEX (CATEGORY)  130 (POOR).         563 (FAIR).
OUTLOOK FOR MON MAY 20        596 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 0-6 MPH.          NW 8-13 MPH.
TRANSPORT WINDS               W 0-6 MPH.          NW 7-11 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON MAY 20        GOOD.

VENTILATION INDEX (CATEGORY)  31 (POOR).          564 (FAIR).
OUTLOOK FOR MON MAY 20        334 (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.
$$