Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 301100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT THU OCT 30 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 2-6 MPH.         NE 4-9 MPH.
TRANSPORT WINDS               SE 2-6 MPH.         SE 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR FRI OCT 31        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          46 (POOR).
OUTLOOK FOR FRI OCT 31        234 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 1-5 MPH.          N 5-10 MPH.
TRANSPORT WINDS               W 1-5 MPH.          NE 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR FRI OCT 31        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          64 (POOR).
OUTLOOK FOR FRI OCT 31        366 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 6-12 MPH.         S 15-25 MPH.
TRANSPORT WINDS               S 6-12 MPH.         SE 20-30 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR FRI OCT 31        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          195 (POOR).
OUTLOOK FOR FRI OCT 31        958 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       45 (POOR)
ELLENSBURG     50 (POOR)
GOLDENDALE     51 (POOR)
TRI-CITIES     61 (POOR)
WALLA WALLA    54 (POOR)
YAKIMA         61 (POOR)
BEND          487 (FAIR)
ENTERPRISE    201 (POOR)
HERMISTON      67 (POOR)
JOHN DAY      230 (POOR)
LA GRANDE     206 (POOR)
MADRAS         68 (POOR)
MEACHAM       132 (POOR)
PENDLETON      44 (POOR)
REDMOND       396 (FAIR)
SENECA        164 (POOR)
THE DALLES     81 (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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