Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 121215
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
515 AM PDT SAT JUL 12 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 3-7 MPH.         NE 4-6 MPH.
TRANSPORT WINDS               SW 4-8 MPH.         NE 4-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUL 13        FAIR.

VENTILATION INDEX (CATEGORY)  42 (POOR).          247 (POOR).
OUTLOOK FOR SUN JUL 13        444 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 N 3-6 MPH.          SE 3-5 MPH.
TRANSPORT WINDS               N 6-8 MPH.          SE 3-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       12000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JUL 13        FAIR.

VENTILATION INDEX (CATEGORY)  42 (POOR).          386 (FAIR).
OUTLOOK FOR SUN JUL 13        495 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NE 1-3 MPH.         N 6-10 MPH.
TRANSPORT WINDS               SW 1-3 MPH.         NE 6-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN JUL 13        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          304 (FAIR).
OUTLOOK FOR SUN JUL 13        230 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      560 (FAIR)
ELLENSBURG    624 (GOOD)
GOLDENDALE    299 (POOR)
TRI-CITIES    231 (POOR)
WALLA WALLA   270 (POOR)
YAKIMA        470 (FAIR)
BEND          518 (FAIR)
ENTERPRISE    332 (FAIR)
HERMISTON     235 (POOR)
JOHN DAY      258 (POOR)
LA GRANDE     308 (FAIR)
MADRAS        454 (FAIR)
MEACHAM       167 (POOR)
PENDLETON     218 (POOR)
REDMOND       479 (FAIR)
SENECA        360 (FAIR)
THE DALLES     77 (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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