Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 231140
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
437 AM PDT WED JUL 23 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 0-5 MPH.          W 15-23 MPH.
TRANSPORT WINDS               W 0-4 MPH.          SW 12-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUL 24        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          703 (GOOD).
OUTLOOK FOR THU JUL 24        1050 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-3 MPH.         W 14-20 MPH.
TRANSPORT WINDS               NW 0-4 MPH.         SW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU JUL 24        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          582 (FAIR).
OUTLOOK FOR THU JUL 24        1050 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 0-3 MPH.          SW 12-14 MPH.
TRANSPORT WINDS               SE 0-4 MPH.         S 16-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUL 24        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          1037 (GOOD).
OUTLOOK FOR THU JUL 24        738 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      172 (POOR)
ELLENSBURG    393 (FAIR)
GOLDENDALE    503 (FAIR)
TRI-CITIES    778 (GOOD)
WALLA WALLA   595 (FAIR)
YAKIMA        467 (FAIR)
BEND          944 (GOOD)
ENTERPRISE   1050 (GOOD)
HERMISTON     727 (GOOD)
JOHN DAY     1050 (GOOD)
LA GRANDE    1013 (GOOD)
MADRAS        829 (GOOD)
MEACHAM       374 (FAIR)
PENDLETON     592 (FAIR)
REDMOND       982 (GOOD)
SENECA       1050 (GOOD)
THE DALLES    350 (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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