Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 091235
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
600 AM PDT WED JUL 9 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NE-SE 5-10 MPH.     WSW 12-18 MPH.
TRANSPORT WINDS               WSW 5-10 MPH.       WSW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR THU JUL 10        FAIR.

VENTILATION INDEX (CATEGORY)  104 (POOR).         933 (GOOD).
OUTLOOK FOR THU JUL 10        501 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NNW 7-12 MPH.       NW 10-15 MPH.
TRANSPORT WINDS               NW 10-15 MPH.       WNW 12-18 MPH.
MIXING HEIGHT                 2000 FT MSL.        9000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU JUL 10        POOR.

VENTILATION INDEX (CATEGORY)  75 (POOR).          457 (FAIR).
OUTLOOK FOR THU JUL 10        130 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW-NE 5-10 MPH.     NW 6-12 MPH.
TRANSPORT WINDS               NW 10-15 MPH.       WSW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUL 10        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          736 (GOOD).
OUTLOOK FOR THU JUL 10        268 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      300 (POOR)
ELLENSBURG    438 (FAIR)
GOLDENDALE    297 (POOR)
TRI-CITIES    906 (GOOD)
WALLA WALLA   923 (GOOD)
YAKIMA        466 (FAIR)
BEND          497 (FAIR)
ENTERPRISE    503 (FAIR)
HERMISTON     893 (GOOD)
JOHN DAY      661 (GOOD)
LA GRANDE     778 (GOOD)
MADRAS        414 (FAIR)
MEACHAM       726 (GOOD)
PENDLETON     884 (GOOD)
REDMOND       491 (FAIR)
SENECA        477 (FAIR)
THE DALLES    369 (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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