Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 071133
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
435 AM PDT TUE JUL 7 2015

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 4-10 MPH.         W 6-9 MPH.
TRANSPORT WINDS               S 4-10 MPH.         W 7-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 8         GOOD.

VENTILATION INDEX (CATEGORY)  226 (POOR).         647 (GOOD).
OUTLOOK FOR WED JUL 8         688 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 0-6 MPH.          W 5-0 MPH.
TRANSPORT WINDS               W 0-8 MPH.          NW 3-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED JUL 8         GOOD.

VENTILATION INDEX (CATEGORY)  129 (POOR).         380 (FAIR).
OUTLOOK FOR WED JUL 8         1015 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 0-3 MPH.        NW 6-10 MPH.
TRANSPORT WINDS               SW 0-5 MPH.         NW 8-11 MPH.
MIXING HEIGHT                 NEAR SURFACE.       13000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 8         GOOD.

VENTILATION INDEX (CATEGORY)  95 (POOR).          708 (GOOD).
OUTLOOK FOR WED JUL 8         981 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      101 (POOR)
ELLENSBURG    259 (POOR)
GOLDENDALE    375 (FAIR)
TRI-CITIES    577 (FAIR)
WALLA WALLA   641 (GOOD)
YAKIMA        264 (POOR)
BEND          292 (POOR)
PRINEVILLE    541 (FAIR)
ENTERPRISE   1046 (GOOD)
HERMISTON     631 (GOOD)
JOHN DAY      826 (GOOD)
LA GRANDE     702 (GOOD)
MADRAS        351 (FAIR)
MEACHAM       608 (GOOD)
PENDLETON     707 (GOOD)
REDMOND       450 (FAIR)
SENECA        793 (GOOD)
THE DALLES    392 (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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