Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 011100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT MON SEP 1 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 4-9 MPH.         SW 6-12 MPH.
TRANSPORT WINDS               SW 4-9 MPH.         W 7-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE SEP 2         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          502 (FAIR).
OUTLOOK FOR TUE SEP 2         768 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-7 MPH.          W 5-10 MPH.
TRANSPORT WINDS               W 3-7 MPH.          NW 7-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE SEP 2         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          306 (FAIR).
OUTLOOK FOR TUE SEP 2         377 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NE 2-6 MPH.         SW 3-7 MPH.
TRANSPORT WINDS               NE 2-6 MPH.         W 7-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE SEP 2         GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          255 (POOR).
OUTLOOK FOR TUE SEP 2         603 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      382 (FAIR)
ELLENSBURG    575 (FAIR)
GOLDENDALE    328 (FAIR)
TRI-CITIES    551 (FAIR)
WALLA WALLA   531 (FAIR)
YAKIMA        297 (POOR)
BEND          107 (POOR)
ENTERPRISE    302 (FAIR)
HERMISTON     435 (FAIR)
JOHN DAY      265 (POOR)
LA GRANDE     269 (POOR)
MADRAS        190 (POOR)
MEACHAM       312 (FAIR)
PENDLETON     441 (FAIR)
REDMOND       137 (POOR)
SENECA        238 (POOR)
THE DALLES    437 (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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