Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 261200
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PST WED NOV 26 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 6-12 MPH.        S-SW 10-15 MPH.
TRANSPORT WINDS               SW 6-12 MPH.        SW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU NOV 27        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          326 (FAIR).
OUTLOOK FOR THU NOV 27        283 (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 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU NOV 27        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          78 (POOR).
OUTLOOK FOR THU NOV 27        421 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-8 MPH.          S 10-15 MPH.
TRANSPORT WINDS               W 4-8 MPH.          S 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR THU NOV 27        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          72 (POOR).
OUTLOOK FOR THU NOV 27        54 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       25 (POOR)
ELLENSBURG     29 (POOR)
GOLDENDALE     80 (POOR)
TRI-CITIES     93 (POOR)
WALLA WALLA   423 (FAIR)
YAKIMA         25 (POOR)
BEND           27 (POOR)
PRINEVILLE     36 (POOR)
ENTERPRISE    103 (POOR)
HERMISTON     149 (POOR)
JOHN DAY       45 (POOR)
LA GRANDE      76 (POOR)
MADRAS         56 (POOR)
MEACHAM        75 (POOR)
PENDLETON     234 (POOR)
REDMOND        25 (POOR)
SENECA         47 (POOR)
THE DALLES     54 (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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