Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 251159
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
354 AM PST SUN JAN 25 2015

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 2-6 MPH.        VRB 3-7 MPH.
TRANSPORT WINDS               VRB 2-6 MPH.        VRB 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON JAN 26        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          38 (POOR).
OUTLOOK FOR MON JAN 26        43 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 1-3 MPH.        VRB 2-5 MPH.
TRANSPORT WINDS               VRB 1-3 MPH.        VRB 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON JAN 26        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          32 (POOR).
OUTLOOK FOR MON JAN 26        36 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 12-22 MPH.        S 15-25 MPH.
TRANSPORT WINDS               S 12-22 MPH.        S 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON JAN 26        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          149 (POOR).
OUTLOOK FOR MON JAN 26        169 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       35 (POOR)
ELLENSBURG     25 (POOR)
GOLDENDALE     35 (POOR)
TRI-CITIES     31 (POOR)
WALLA WALLA    51 (POOR)
YAKIMA         25 (POOR)
BEND           81 (POOR)
PRINEVILLE    114 (POOR)
ENTERPRISE     98 (POOR)
HERMISTON      31 (POOR)
JOHN DAY       59 (POOR)
LA GRANDE     166 (POOR)
MADRAS         87 (POOR)
MEACHAM        84 (POOR)
PENDLETON      54 (POOR)
REDMOND       109 (POOR)
SENECA         55 (POOR)
THE DALLES     44 (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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