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784
AUUS46 KPDT 251100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT SAT OCT 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                 VRBL 6-12 MPH.      SW-W 12-18 MPH.
TRANSPORT WINDS               VRBL 6-12 MPH.      SW 30-45 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN OCT 26        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          589 (FAIR).
OUTLOOK FOR SUN OCT 26        1049 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-7 MPH.          E 10-15 MPH.
TRANSPORT WINDS               W 3-7 MPH.          S 20-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN OCT 26        GOOD.

VENTILATION INDEX (CATEGORY)  31 (POOR).          54 (POOR).
OUTLOOK FOR SUN OCT 26        884 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 2-6 MPH.         S 15-30 MPH.
TRANSPORT WINDS               NW 2-6 MPH.         S 30-40 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN OCT 26        GOOD.

VENTILATION INDEX (CATEGORY)  41 (POOR).          649 (GOOD).
OUTLOOK FOR SUN OCT 26        1032 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       59 (POOR)
ELLENSBURG     67 (POOR)
GOLDENDALE     26 (POOR)
TRI-CITIES     28 (POOR)
WALLA WALLA  1050 (GOOD)
YAKIMA         76 (POOR)
BEND         1050 (GOOD)
ENTERPRISE    792 (GOOD)
HERMISTON      25 (POOR)
JOHN DAY     1050 (GOOD)
LA GRANDE     794 (GOOD)
MADRAS       1050 (GOOD)
MEACHAM      1050 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND      1050 (GOOD)
SENECA       1050 (GOOD)
THE DALLES    115 (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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