621
AUUS46 KPDT 271320
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
520 AM PST FRI NOV 27 2009
*** AIR DISPERSION CATEGORIES: GOOD, FAIR, POOR ***
FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO
7:00 AM AFTERNOON
SURFACE WINDS W-NW 3-7 MPH. W 6-10 MPH.
TRANSPORT WINDS SW 4-10 MPH. NW 8-14 MPH.
MIXING HEIGHT NEAR SURFACE. 4500 FT MSL.
DISPERSION CATEGORY POOR. FAIR.
OUTLOOK FOR SAT NOV 28 POOR.
VENTILATION INDEX (CATEGORY) 39 (POOR). 304 (FAIR).
OUTLOOK FOR SAT NOV 28 229 (POOR).
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
7:00 AM AFTERNOON
SURFACE WINDS NW 2-5 MPH. NW 5-9 MPH.
TRANSPORT WINDS NW 4-8 MPH. N 7-14 MPH.
MIXING HEIGHT NEAR SURFACE. 5000 FT MSL.
DISPERSION CATEGORY POOR. FAIR.
OUTLOOK FOR SAT NOV 28 POOR.
VENTILATION INDEX (CATEGORY) 32 (POOR). 507 (GOOD).
OUTLOOK FOR SAT NOV 28 59 (POOR).
FOR THE GRANDE RONDE RIVER VALLEY
7:00 AM AFTERNOON
SURFACE WINDS S 8-15 MPH. W 6-10 MPH.
TRANSPORT WINDS S 10-20 MPH. SW 8-13 MPH.
MIXING HEIGHT NEAR SURFACE. 5000 FT MSL.
DISPERSION CATEGORY POOR. FAIR.
OUTLOOK FOR SAT NOV 28 POOR.
VENTILATION INDEX (CATEGORY) 52 (POOR). 125 (POOR).
OUTLOOK FOR SAT NOV 28 59 (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 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.
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