Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 221208
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
507 AM PDT WED OCT 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                 SE 3-10 MPH.        S 12-17 MPH.
TRANSPORT WINDS               SE 6-12 MPH.        S 18-23 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU OCT 23        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          550 (FAIR).
OUTLOOK FOR THU OCT 23        823 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 0-6 MPH.         S 10-17 MPH.
TRANSPORT WINDS               SE 2-6 MPH.         S 12-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU OCT 23        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          265 (POOR).
OUTLOOK FOR THU OCT 23        963 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 11-16 MPH.        S 14-20 MPH.
TRANSPORT WINDS               S 10-13 MPH.        S 16-22 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU OCT 23        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          536 (FAIR).
OUTLOOK FOR THU OCT 23        493 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       55 (POOR)
ELLENSBURG    116 (POOR)
GOLDENDALE    181 (POOR)
TRI-CITIES    572 (FAIR)
WALLA WALLA   497 (FAIR)
YAKIMA        249 (POOR)
BEND          798 (GOOD)
ENTERPRISE    504 (FAIR)
HERMISTON     616 (GOOD)
JOHN DAY      403 (FAIR)
LA GRANDE     587 (FAIR)
MADRAS        853 (GOOD)
MEACHAM       599 (FAIR)
PENDLETON     503 (FAIR)
REDMOND      1050 (GOOD)
SENECA        649 (GOOD)
THE DALLES    167 (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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