Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 241205
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
404 AM PST SAT JAN 24 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 3-7 MPH.        S 4-8 MPH.
TRANSPORT WINDS               VRB 3-7 MPH.        SW 8-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN JAN 25        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          155 (POOR).
OUTLOOK FOR SUN JAN 25        50 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-6 MPH.          SW 2-5 MPH.
TRANSPORT WINDS               W 3-6 MPH..         SW 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN JAN 25        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          50 (POOR).
OUTLOOK FOR SUN JAN 25        38 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 10-20 MPH.        S 10-20 MPH.
TRANSPORT WINDS               S 10-20 MPH.        S 10-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN JAN 25        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          77 (POOR).
OUTLOOK FOR SUN JAN 25        115 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       35 (POOR)
ELLENSBURG     39 (POOR)
GOLDENDALE     70 (POOR)
TRI-CITIES     52 (POOR)
WALLA WALLA   162 (POOR)
YAKIMA         36 (POOR)
BEND           53 (POOR)
PRINEVILLE     69 (POOR)
ENTERPRISE     66 (POOR)
HERMISTON     119 (POOR)
JOHN DAY       41 (POOR)
LA GRANDE      74 (POOR)
MADRAS         81 (POOR)
MEACHAM        56 (POOR)
PENDLETON     196 (POOR)
REDMOND        64 (POOR)
SENECA         32 (POOR)
THE DALLES     42 (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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