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257
AUUS46 KPDT 221245
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
442 AM PST SAT NOV 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                 SW 10-20 MPH.       SW 15-25 MPH.
TRANSPORT WINDS               SW 15-25 MPH.       SW 20-30 MPH.
MIXING HEIGHT                 2000 FT MSL.        3500 FT MSL.
DISPERSION CATEGORY           GOOD.               GOOD.
OUTLOOK FOR SUN NOV 23        GOOD.

VENTILATION INDEX (CATEGORY)  142 (POOR).         623 (GOOD).
OUTLOOK FOR SUN NOV 23        608 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 2-5 MPH.          W 10-20 MPH.
TRANSPORT WINDS               W 3-6 MPH.          SW 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR SUN NOV 23        GOOD.

VENTILATION INDEX (CATEGORY)  77 (POOR).          303 (FAIR).
OUTLOOK FOR SUN NOV 23        249 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 7-14 MPH.        SW 10-17 MPH.
TRANSPORT WINDS               SW 10-18 MPH.       SW 15-25 MPH.
MIXING HEIGHT                 4500 FT MSL.        5500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN NOV 23        FAIR.

VENTILATION INDEX (CATEGORY)  54 (POOR).          363 (FAIR).
OUTLOOK FOR SUN NOV 23        201 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      227 (POOR)
ELLENSBURG    239 (POOR)
GOLDENDALE    204 (POOR)
TRI-CITIES    331 (FAIR)
WALLA WALLA   527 (FAIR)
YAKIMA        273 (POOR)
BEND          581 (FAIR)
PRINEVILLE    874 (GOOD)
ENTERPRISE    541 (FAIR)
HERMISTON     623 (GOOD)
JOHN DAY      538 (FAIR)
LA GRANDE     398 (FAIR)
MADRAS        659 (GOOD)
MEACHAM       769 (GOOD)
PENDLETON     972 (GOOD)
REDMOND       778 (GOOD)
SENECA        552 (FAIR)
THE DALLES    149 (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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