Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 301100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT TUE JUN 30 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-NW 5-10 MPH.     SW-NW 6-12 MPH.
TRANSPORT WINDS               SW-NW 5-10 MPH.     SW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 1         POOR.

VENTILATION INDEX (CATEGORY)  70 (POOR).          423 (FAIR).
OUTLOOK FOR WED JUL 1         139 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 6-12 MPH.        W 5-10 MPH.
TRANSPORT WINDS               NW 6-12 MPH.        W 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 1         POOR.

VENTILATION INDEX (CATEGORY)  79 (POOR).          405 (FAIR).
OUTLOOK FOR WED JUL 1         113 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 8-14 MPH.        NW 5-10 MPH.
TRANSPORT WINDS               NW 8-14 MPH.        SW 17-23 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 1         GOOD.

VENTILATION INDEX (CATEGORY)  31 (POOR).          396 (FAIR).
OUTLOOK FOR WED JUL 1         240 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      534 (FAIR)
ELLENSBURG    813 (GOOD)
GOLDENDALE    207 (POOR)
TRI-CITIES    583 (FAIR)
WALLA WALLA   450 (FAIR)
YAKIMA        450 (FAIR)
BEND          127 (POOR)
PRINEVILLE    190 (POOR)
ENTERPRISE    465 (FAIR)
HERMISTON     393 (FAIR)
JOHN DAY      369 (FAIR)
LA GRANDE     436 (FAIR)
MADRAS        212 (POOR)
MEACHAM       373 (FAIR)
PENDLETON     377 (FAIR)
REDMOND       250 (POOR)
SENECA        341 (FAIR)
THE DALLES    117 (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 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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