Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 241214
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
514 AM PDT THU JUL 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                 S 8-13 MPH.         SW 14-21 MPH.
TRANSPORT WINDS               SW 12-19 MPH.       SW 18-22 MPH.
MIXING HEIGHT                 2000 FT MSL.        7500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI JUL 25        FAIR.

VENTILATION INDEX (CATEGORY)  140 (POOR).         1042 (GOOD).
OUTLOOK FOR FRI JUL 25        483 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 0-5 MPH.        W 10-18 MPH.
TRANSPORT WINDS               SW 6-10 MPH.        W 15-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI JUL 25        POOR.

VENTILATION INDEX (CATEGORY)  67 (POOR).          1041 (GOOD).
OUTLOOK FOR FRI JUL 25        401 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-6 MPH.         NW 8-12 MPH.
TRANSPORT WINDS               NW 0-5 MPH.         W 9-12 MPH.
MIXING HEIGHT                 4000 FT MSL.        9500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI JUL 25        GOOD.

VENTILATION INDEX (CATEGORY)  46 (POOR).          642 (GOOD).
OUTLOOK FOR FRI JUL 25        306 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      636 (GOOD)
ELLENSBURG   1038 (GOOD)
GOLDENDALE    912 (GOOD)
TRI-CITIES    945 (GOOD)
WALLA WALLA  1050 (GOOD)
YAKIMA       1033 (GOOD)
BEND          389 (FAIR)
ENTERPRISE    638 (GOOD)
HERMISTON    1009 (GOOD)
JOHN DAY      483 (FAIR)
LA GRANDE     654 (GOOD)
MADRAS        707 (GOOD)
MEACHAM       732 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND       525 (FAIR)
SENECA        460 (FAIR)
THE DALLES    723 (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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