Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 251200
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PST TUE NOV 25 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 8-15 MPH.        SW 18-28 MPH.
TRANSPORT WINDS               SW 8-15 MPH.        SW 20-30 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR WED NOV 26        FAIR.

VENTILATION INDEX (CATEGORY)  48 (POOR).          666 (GOOD).
OUTLOOK FOR WED NOV 26        242 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 0-4 MPH.         SW 10-15 MPH.
TRANSPORT WINDS               SW 0-4 MPH.         SW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED NOV 26        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          272 (POOR).
OUTLOOK FOR WED NOV 26        117 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-4 MPH.         W 15-20 MPH.
TRANSPORT WINDS               NW 0-4 MPH.         W 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED NOV 26        POOR.

VENTILATION INDEX (CATEGORY)  28 (POOR).          197 (POOR).
OUTLOOK FOR WED NOV 26        99 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       74 (POOR)
ELLENSBURG     46 (POOR)
GOLDENDALE    204 (POOR)
TRI-CITIES     94 (POOR)
WALLA WALLA   114 (POOR)
YAKIMA         79 (POOR)
BEND          289 (POOR)
PRINEVILLE     98 (POOR)
ENTERPRISE    151 (POOR)
HERMISTON    1050 (GOOD)
JOHN DAY      110 (POOR)
LA GRANDE     303 (FAIR)
MADRAS        596 (FAIR)
MEACHAM       225 (POOR)
PENDLETON    1049 (GOOD)
REDMOND       333 (FAIR)
SENECA        178 (POOR)
THE DALLES    430 (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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