Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 011243
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
600 AM PDT WED OCT 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                 SSE 5-10 MPH.       SW 7-14 MPH.
TRANSPORT WINDS               SW 5-10 MPH.        WSW 7-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU OCT 2         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          580 (FAIR).
OUTLOOK FOR THU OCT 2         152 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-8 MPH.          WNW 6-12 MPH.
TRANSPORT WINDS               NW 5-10 MPH.        SW 6-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU OCT 2         POOR.

VENTILATION INDEX (CATEGORY)  28 (POOR).          306 (FAIR).
OUTLOOK FOR THU OCT 2         215 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-10 MPH.        WNW 5-10 MPH.
TRANSPORT WINDS               NW 4-8 MPH.         W 5-10 MPH.
MIXING HEIGHT                 4000 FT MSL.        7500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU OCT 2         FAIR.

VENTILATION INDEX (CATEGORY)  47 (POOR).          220 (POOR).
OUTLOOK FOR THU OCT 2         198 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      262 (POOR)
ELLENSBURG    312 (FAIR)
GOLDENDALE    263 (POOR)
TRI-CITIES    654 (GOOD)
WALLA WALLA   547 (FAIR)
YAKIMA        243 (POOR)
BEND           80 (POOR)
ENTERPRISE    236 (POOR)
HERMISTON     581 (FAIR)
JOHN DAY      148 (POOR)
LA GRANDE     232 (POOR)
MADRAS        170 (POOR)
MEACHAM       269 (POOR)
PENDLETON     491 (FAIR)
REDMOND       111 (POOR)
SENECA        161 (POOR)
THE DALLES    293 (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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