AUUS46 KPDT 261354
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
555 AM PST THU NOV 26 2009
*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***
FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO
                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 3-5 MPH.         NW 3-8 MPH. 
TRANSPORT WINDS               SE 4-7 MPH.         S 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL. 
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR FRI NOV 27        FAIR.               
VENTILATION INDEX (CATEGORY)  25 (POOR).          158 (POOR).
OUTLOOK FOR FRI NOV 27        685 (GOOD).         
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
                              7:00 AM             AFTERNOON
SURFACE WINDS                 VAR 1-3 MPH.        E 1-3 MPH.
TRANSPORT WINDS               S 2-5 MPH.          S 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR FRI NOV 27        FAIR.               
VENTILATION INDEX (CATEGORY)  25 (POOR).          55 (POOR).
OUTLOOK FOR FRI NOV 27        745 (GOOD).         
FOR THE GRANDE RONDE RIVER VALLEY
                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 15-30 MPH.        S 15-30 MPH.
TRANSPORT WINDS               S 15-30 MPH.        S 15-30 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR FRI NOV 27        FAIR.               
VENTILATION INDEX (CATEGORY)  50 (POOR).          391 (FAIR).
OUTLOOK FOR FRI NOV 27        286 (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 NEW TOOL TO ASSIST SMOKE MANAGEMENT
AGENCIES IN DETERMINING BURN OR NO BURN DECISIONS.  A VENTILATION
INDEX GRAPHIC IS ON THE PENDLETON WEBSITE. IF YOU WOULD LIKE TO KNOW
MORE ABOUT THIS PRODUCT...CONTACT THE NATIONAL WEATHER SERVICE
IN PENDLETON.
$$