Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 031201
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
501 AM PDT MON AUG 3 2015

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S-SW 5-8 MPH.       SW-W 11-19 MPH.
TRANSPORT WINDS               S-SW 5-8 MPH.       SW-W 9-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE AUG 4         GOOD.

VENTILATION INDEX (CATEGORY)  126 (POOR).         728 (GOOD).
OUTLOOK FOR TUE AUG 4         1050 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-8 MPH.          W 12-16 MPH.
TRANSPORT WINDS               W 4-8 MPH.          SW-W 10-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       12500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR TUE AUG 4         GOOD.

VENTILATION INDEX (CATEGORY)  105 (POOR).         802 (GOOD).
OUTLOOK FOR TUE AUG 4         821 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 3-7 MPH.         NW 9-13 MPH.
TRANSPORT WINDS               NW 3-7 MPH.         NW 9-11 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR TUE AUG 4         GOOD.

VENTILATION INDEX (CATEGORY)  91 (POOR).          637 (GOOD).
OUTLOOK FOR TUE AUG 4         957 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      692 (GOOD)
ELLENSBURG   1050 (GOOD)
GOLDENDALE    860 (GOOD)
TRI-CITIES    648 (GOOD)
WALLA WALLA   840 (GOOD)
YAKIMA        981 (GOOD)
BEND          555 (FAIR)
PRINEVILLE    727 (GOOD)
ENTERPRISE    616 (GOOD)
HERMISTON     653 (GOOD)
JOHN DAY      592 (FAIR)
LA GRANDE     691 (GOOD)
MADRAS        928 (GOOD)
MEACHAM       630 (GOOD)
PENDLETON     732 (GOOD)
REDMOND       753 (GOOD)
SENECA        655 (GOOD)
THE DALLES    907 (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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