Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 021206
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
506 AM PDT WED SEP 2 2015

*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 9-15 MPH.        W-SW 14-20 MPH.
TRANSPORT WINDS               SW 9-15 MPH.        SW 17-23 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR THU SEP 3         FAIR.

VENTILATION INDEX (CATEGORY)  229 (POOR).         1047 (GOOD).
OUTLOOK FOR THU SEP 3         591 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 9-13 MPH.        W 14-18 MPH.
TRANSPORT WINDS               SW 9-13 MPH.        W 15-19 MPH.
MIXING HEIGHT                 2500 FT MSL.        9500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR THU SEP 3         FAIR.

VENTILATION INDEX (CATEGORY)  265 (POOR).         1035 (GOOD).
OUTLOOK FOR THU SEP 3         423 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 3-6 MPH.         NW 9-13 MPH.
TRANSPORT WINDS               NW 3-6 MPH.         SW 9-14 MPH.
MIXING HEIGHT                 4000 FT MSL.        9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU SEP 3         GOOD.

VENTILATION INDEX (CATEGORY)  90 (POOR).          609 (GOOD).
OUTLOOK FOR THU SEP 3         326 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      737 (GOOD)
ELLENSBURG   1050 (GOOD)
GOLDENDALE   1048 (GOOD)
TRI-CITIES   1050 (GOOD)
WALLA WALLA  1050 (GOOD)
YAKIMA        942 (GOOD)
BEND          680 (GOOD)
PRINEVILLE    698 (GOOD)
ENTERPRISE    617 (GOOD)
HERMISTON    1050 (GOOD)
JOHN DAY      643 (GOOD)
LA GRANDE     613 (GOOD)
MADRAS        994 (GOOD)
MEACHAM       396 (FAIR)
PENDLETON     982 (GOOD)
REDMOND       782 (GOOD)
SENECA        698 (GOOD)
THE DALLES   1050 (GOOD)

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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