Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 231100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT THU OCT 23 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 1-5 MPH.          SW 15-25 MPH.
TRANSPORT WINDS               S 1-5 MPH.          SW 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI OCT 24        POOR.

VENTILATION INDEX (CATEGORY)  26 (POOR).          559 (FAIR).
OUTLOOK FOR FRI OCT 24        118 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 0-5 MPH.         SW 15-25 MPH.
TRANSPORT WINDS               SW 0-5 MPH.         SW 20-30 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI OCT 24        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          841 (GOOD).
OUTLOOK FOR FRI OCT 24        59 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 15-25 MPH.        S 15-25 MPH.
TRANSPORT WINDS               S 15-25 MPH.        S 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR FRI OCT 24        POOR.

VENTILATION INDEX (CATEGORY)  76 (POOR).          252 (POOR).
OUTLOOK FOR FRI OCT 24        116 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      467 (FAIR)
ELLENSBURG    818 (GOOD)
GOLDENDALE    613 (GOOD)
TRI-CITIES    690 (GOOD)
WALLA WALLA   638 (GOOD)
YAKIMA        906 (GOOD)
BEND          692 (GOOD)
ENTERPRISE    267 (POOR)
HERMISTON     454 (FAIR)
JOHN DAY      520 (FAIR)
LA GRANDE     330 (FAIR)
MADRAS        901 (GOOD)
MEACHAM       365 (FAIR)
PENDLETON     390 (FAIR)
REDMOND       709 (GOOD)
SENECA        497 (FAIR)
THE DALLES    758 (GOOD)

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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