Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 241101
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT FRI OCT 24 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 1-5 MPH.         NE 3-7 MPH.
TRANSPORT WINDS               SE 1-5 MPH.         SE 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT OCT 25        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          125 (POOR).
OUTLOOK FOR SAT OCT 25        91 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-4 MPH.         NE 3-7 MPH.
TRANSPORT WINDS               NW 0-4 MPH.         NE 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT OCT 25        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          41 (POOR).
OUTLOOK FOR SAT OCT 25        163 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-4 MPH.         NE 5-10 MPH.
TRANSPORT WINDS               NW 0-4 MPH.         SE 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT OCT 25        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          125 (POOR).
OUTLOOK FOR SAT OCT 25        1050 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      109 (POOR)
ELLENSBURG     99 (POOR)
GOLDENDALE    176 (POOR)
TRI-CITIES     84 (POOR)
WALLA WALLA    83 (POOR)
YAKIMA         53 (POOR)
BEND           63 (POOR)
ENTERPRISE    138 (POOR)
HERMISTON     132 (POOR)
JOHN DAY      170 (POOR)
LA GRANDE     148 (POOR)
MADRAS        117 (POOR)
MEACHAM       145 (POOR)
PENDLETON     131 (POOR)
REDMOND        94 (POOR)
SENECA        196 (POOR)
THE DALLES     78 (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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