Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 061237
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
505 AM PDT MON JUL 6 2015

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 0-4 MPH.        NW 1-4 MPH.
TRANSPORT WINDS               S 4-8 MPH.          N 3-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       12000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE JUL 7         FAIR.

VENTILATION INDEX (CATEGORY)  38 (POOR).          222 (POOR).
OUTLOOK FOR TUE JUL 7         605 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 0-4 MPH.        SE 1-6 MPH.
TRANSPORT WINDS               N 6-9 MPH.          SW 2-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE JUL 7         FAIR.

VENTILATION INDEX (CATEGORY)  81 (POOR).          358 (FAIR).
OUTLOOK FOR TUE JUL 7         429 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 0-3 MPH.        N 3-7 MPH.
TRANSPORT WINDS               SE 1-2 MPH.         N 9-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       13000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR TUE JUL 7         GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          567 (FAIR).
OUTLOOK FOR TUE JUL 7         490 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      358 (FAIR)
ELLENSBURG    515 (FAIR)
GOLDENDALE    461 (FAIR)
TRI-CITIES     66 (POOR)
WALLA WALLA   402 (FAIR)
YAKIMA        453 (FAIR)
BEND          219 (POOR)
PRINEVILLE    443 (FAIR)
ENTERPRISE    621 (GOOD)
HERMISTON     161 (POOR)
JOHN DAY      575 (FAIR)
LA GRANDE     585 (FAIR)
MADRAS        322 (FAIR)
MEACHAM       513 (FAIR)
PENDLETON     307 (FAIR)
REDMOND       433 (FAIR)
SENECA        619 (GOOD)
THE DALLES    197 (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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