Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 251215
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
515 AM PDT THU AUG 25 2016

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 2-6 MPH.          N 11-12 MPH.
TRANSPORT WINDS               SW 3-8 MPH.         NE 9-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI AUG 26        FAIR.

VENTILATION INDEX (CATEGORY)  36 (POOR).          715 (GOOD).
OUTLOOK FOR FRI AUG 26        201 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-9 MPH.         NE 6-11 MPH.
TRANSPORT WINDS               NW 5-10 MPH.        N 6-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI AUG 26        POOR.

VENTILATION INDEX (CATEGORY)  84 (POOR).          664 (GOOD).
OUTLOOK FOR FRI AUG 26        272 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NE 1-3 MPH.         N 7-10 MPH.
TRANSPORT WINDS               NE 1-3 MPH.         N 7-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       12500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI AUG 26        FAIR.

VENTILATION INDEX (CATEGORY)  46 (POOR).          601 (GOOD).
OUTLOOK FOR FRI AUG 26        382 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      282 (POOR)
ELLENSBURG    555 (FAIR)
GOLDENDALE    731 (GOOD)
TRI-CITIES    500 (FAIR)
WALLA WALLA   759 (GOOD)
YAKIMA        751 (GOOD)
BEND          602 (GOOD)
PRINEVILLE    733 (GOOD)
ENTERPRISE    478 (FAIR)
HERMISTON     709 (GOOD)
JOHN DAY      422 (FAIR)
LA GRANDE     606 (GOOD)
MADRAS       1050 (GOOD)
MEACHAM       461 (FAIR)
PENDLETON     702 (GOOD)
REDMOND       787 (GOOD)
SENECA        359 (FAIR)
THE DALLES    546 (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 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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