Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 291223
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
530 AM PDT TUE JUL 29 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 2-5 MPH.        NW 5-10 MPH.
TRANSPORT WINDS               VRB 2-5 MPH.        SW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED JUL 30        FAIR.

VENTILATION INDEX (CATEGORY)  52 (POOR).          446 (FAIR).
OUTLOOK FOR WED JUL 30        694 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-8 MPH.          NW 5-9 MPH.
TRANSPORT WINDS               W 4-8 MPH.          SW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED JUL 30        GOOD.

VENTILATION INDEX (CATEGORY)  65 (POOR).          440 (FAIR).
OUTLOOK FOR WED JUL 30        888 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 2-4 MPH.        N 6-10 MPH.
TRANSPORT WINDS               VRB 2-4 MPH.        N 6-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       13500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 30        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          515 (FAIR).
OUTLOOK FOR WED JUL 30        448 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      364 (FAIR)
ELLENSBURG    483 (FAIR)
GOLDENDALE    577 (FAIR)
TRI-CITIES    530 (FAIR)
WALLA WALLA   302 (FAIR)
YAKIMA        292 (POOR)
BEND          297 (POOR)
ENTERPRISE    700 (GOOD)
HERMISTON     514 (FAIR)
JOHN DAY      594 (FAIR)
LA GRANDE     519 (FAIR)
MADRAS        277 (POOR)
MEACHAM       402 (FAIR)
PENDLETON     379 (FAIR)
REDMOND       342 (FAIR)
SENECA        513 (FAIR)
THE DALLES    593 (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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