Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 261100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT SAT JUL 26 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-6 MPH.         SW-W 4-9 MPH.
TRANSPORT WINDS               SE 2-6 MPH.         SW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUL 27        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          307 (FAIR).
OUTLOOK FOR SUN JUL 27        152 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-7 MPH.          SW 5-10 MPH.
TRANSPORT WINDS               W 3-7 MPH.          SW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUL 27        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          365 (FAIR).
OUTLOOK FOR SUN JUL 27        133 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-4 MPH.         SW 3-7 MPH.
TRANSPORT WINDS               NW 0-4 MPH.         SW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUL 27        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          150 (POOR).
OUTLOOK FOR SUN JUL 27        110 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      258 (POOR)
ELLENSBURG    417 (FAIR)
GOLDENDALE    304 (FAIR)
TRI-CITIES    353 (FAIR)
WALLA WALLA   253 (POOR)
YAKIMA        340 (FAIR)
BEND          250 (POOR)
ENTERPRISE    299 (POOR)
HERMISTON     306 (FAIR)
JOHN DAY      472 (FAIR)
LA GRANDE     126 (POOR)
MADRAS        112 (POOR)
MEACHAM       191 (POOR)
PENDLETON     194 (POOR)
REDMOND       248 (POOR)
SENECA        504 (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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