Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 211205
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
505 AM PDT TUE OCT 21 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 0-7 MPH.         SW 10-17 MPH.
TRANSPORT WINDS               SW 10-14 MPH.       SW 20-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR WED OCT 22        GOOD.

VENTILATION INDEX (CATEGORY)  26 (POOR).          1049 (GOOD).
OUTLOOK FOR WED OCT 22        866 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 2-9 MPH.          SW 10-18 MPH.
TRANSPORT WINDS               SW 6-12 MPH.        W 16-21 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED OCT 22        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          840 (GOOD).
OUTLOOK FOR WED OCT 22        477 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 8-10 MPH.         SW 5-9 MPH.
TRANSPORT WINDS               W 5-6 MPH.          SW 8-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED OCT 22        GOOD.

VENTILATION INDEX (CATEGORY)  45 (POOR).          561 (FAIR).
OUTLOOK FOR WED OCT 22        719 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      209 (POOR)
ELLENSBURG    473 (FAIR)
GOLDENDALE    821 (GOOD)
TRI-CITIES   1045 (GOOD)
WALLA WALLA  1050 (GOOD)
YAKIMA        663 (GOOD)
BEND          603 (GOOD)
ENTERPRISE    560 (FAIR)
HERMISTON    1050 (GOOD)
JOHN DAY      634 (GOOD)
LA GRANDE     626 (GOOD)
MADRAS        911 (GOOD)
MEACHAM       777 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND       712 (GOOD)
SENECA        724 (GOOD)
THE DALLES    481 (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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