Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 271333
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
530 AM PST TUE JAN 27 2015

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-8 MPH.         W 2-5 MPH.
TRANSPORT WINDS               SE 2-8 MPH.         SW 3-7 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED JAN 28        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          51 (POOR).
OUTLOOK FOR WED JAN 28        52 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NE 2-5 MPH.         E 1-3 MPH.
TRANSPORT WINDS               NE 2-5 MPH.         E 2-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED JAN 28        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          34 (POOR).
OUTLOOK FOR WED JAN 28        33 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 13-18 MPH.        S 9-21 MPH.
TRANSPORT WINDS               S 6-13 MPH.         S 7-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED JAN 28        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          89 (POOR).
OUTLOOK FOR WED JAN 28        72 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       64 (POOR)
ELLENSBURG     48 (POOR)
GOLDENDALE     81 (POOR)
TRI-CITIES     26 (POOR)
WALLA WALLA    63 (POOR)
YAKIMA         25 (POOR)
BEND          167 (POOR)
PRINEVILLE    107 (POOR)
ENTERPRISE     30 (POOR)
HERMISTON      31 (POOR)
JOHN DAY       37 (POOR)
LA GRANDE      96 (POOR)
MADRAS        164 (POOR)
MEACHAM        67 (POOR)
PENDLETON      45 (POOR)
REDMOND       133 (POOR)
SENECA         25 (POOR)
THE DALLES     71 (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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