Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 221100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT FRI AUG 22 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 5-10 MPH.        NW 10-15 MPH.
TRANSPORT WINDS               SW 5-10 MPH.        NW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT AUG 23        FAIR.

VENTILATION INDEX (CATEGORY)  29 (POOR).          473 (FAIR).
OUTLOOK FOR SAT AUG 23        811 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-10 MPH.        N 10-15 MPH.
TRANSPORT WINDS               NW 5-10 MPH.        NW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT AUG 23        FAIR.

VENTILATION INDEX (CATEGORY)  28 (POOR).          917 (GOOD).
OUTLOOK FOR SAT AUG 23        737 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 4-9 MPH.         N 10-15 MPH.
TRANSPORT WINDS               NW 4-9 MPH.         N 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT AUG 23        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          473 (FAIR).
OUTLOOK FOR SAT AUG 23        772 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      144 (POOR)
ELLENSBURG    700 (GOOD)
GOLDENDALE    470 (FAIR)
TRI-CITIES    498 (FAIR)
WALLA WALLA   364 (FAIR)
YAKIMA        905 (GOOD)
BEND          492 (FAIR)
ENTERPRISE    583 (FAIR)
HERMISTON     627 (GOOD)
JOHN DAY      678 (GOOD)
LA GRANDE     499 (FAIR)
MADRAS        501 (FAIR)
MEACHAM       365 (FAIR)
PENDLETON     532 (FAIR)
REDMOND       541 (FAIR)
SENECA        613 (GOOD)
THE DALLES    366 (FAIR)

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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