Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 241218
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
518 AM PDT WED AUG 24 2016

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 4-8 MPH.         N 6-10 MPH.
TRANSPORT WINDS               S 3-9 MPH.          N 7-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU AUG 25        GOOD.

VENTILATION INDEX (CATEGORY)  46 (POOR).          568 (FAIR).
OUTLOOK FOR THU AUG 25        895 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 6-8 MPH.         N 9-12 MPH.
TRANSPORT WINDS               NW 5-9 MPH.         NE 11-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU AUG 25        FAIR.

VENTILATION INDEX (CATEGORY)  97 (POOR).          1042 (GOOD).
OUTLOOK FOR THU AUG 25        933 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 N 1-2 MPH.          N 10-13 MPH.
TRANSPORT WINDS               SW 1-3 MPH.         N 9-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       12000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU AUG 25        GOOD.

VENTILATION INDEX (CATEGORY)  28 (POOR).          877 (GOOD).
OUTLOOK FOR THU AUG 25        563 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      692 (GOOD)
ELLENSBURG   1050 (GOOD)
GOLDENDALE    931 (GOOD)
TRI-CITIES    696 (GOOD)
WALLA WALLA   387 (FAIR)
YAKIMA       1050 (GOOD)
BEND          500 (FAIR)
PRINEVILLE    683 (GOOD)
ENTERPRISE    944 (GOOD)
HERMISTON     798 (GOOD)
JOHN DAY      819 (GOOD)
LA GRANDE     858 (GOOD)
MADRAS        861 (GOOD)
MEACHAM       570 (FAIR)
PENDLETON     522 (FAIR)
REDMOND       653 (GOOD)
SENECA        768 (GOOD)
THE DALLES    564 (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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