Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 221100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT TUE JUL 22 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-6 MPH.         W 5-10 MPH.
TRANSPORT WINDS               SE 2-6 MPH.         SW 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 23        GOOD.

VENTILATION INDEX (CATEGORY)  27 (POOR).          774 (GOOD).
OUTLOOK FOR WED JUL 23        1010 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 1-5 MPH.          W 5-10 MPH.
TRANSPORT WINDS               W 1-5 MPH.          SW 20-30 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 23        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          941 (GOOD).
OUTLOOK FOR WED JUL 23        461 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 3-7 MPH.         S 3-7 MPH.
TRANSPORT WINDS               NW 3-7 MPH.         SW 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 23        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          412 (FAIR).
OUTLOOK FOR WED JUL 23        1050 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      175 (POOR)
ELLENSBURG    536 (FAIR)
GOLDENDALE    133 (POOR)
TRI-CITIES   1050 (GOOD)
WALLA WALLA   904 (GOOD)
YAKIMA        897 (GOOD)
BEND          389 (FAIR)
ENTERPRISE    281 (POOR)
HERMISTON     468 (FAIR)
JOHN DAY     1050 (GOOD)
LA GRANDE     382 (FAIR)
MADRAS        261 (POOR)
MEACHAM       391 (FAIR)
PENDLETON     389 (FAIR)
REDMOND       514 (FAIR)
SENECA       1050 (GOOD)
THE DALLES    100 (POOR)

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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