Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 021100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT THU OCT 2 2014

*** AIR DISPERSION CATEGORIES:   GOOD, FAIR, POOR ***

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 2-6 MPH.          NW 3-7 MPH.
TRANSPORT WINDS               S 2-6 MPH.          N 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR FRI OCT 3         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          128 (POOR).
OUTLOOK FOR FRI OCT 3         47 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 3-7 MPH.         NE 5-10 MPH.
TRANSPORT WINDS               NW 3-7 MPH.         NE 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR FRI OCT 3         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          196 (POOR).
OUTLOOK FOR FRI OCT 3         92 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-4 MPH.         NW 5-10 MPH.
TRANSPORT WINDS               SW 0-4 MPH.         NW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR FRI OCT 3         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          144 (POOR).
OUTLOOK FOR FRI OCT 3         187 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      105 (POOR)
ELLENSBURG    155 (POOR)
GOLDENDALE    170 (POOR)
TRI-CITIES    206 (POOR)
WALLA WALLA   102 (POOR)
YAKIMA        200 (POOR)
BEND           83 (POOR)
ENTERPRISE    182 (POOR)
HERMISTON     136 (POOR)
JOHN DAY      156 (POOR)
LA GRANDE     146 (POOR)
MADRAS        127 (POOR)
MEACHAM       141 (POOR)
PENDLETON     106 (POOR)
REDMOND       109 (POOR)
SENECA        226 (POOR)
THE DALLES    168 (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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