Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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442
AUUS46 KPDT 091140
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
340 AM PST TUE FEB 9 2016

*** 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.        NW 3-6 MPH.
TRANSPORT WINDS               VRB 2-6 MPH.        NW 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED FEB 10        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          45 (POOR).
OUTLOOK FOR WED FEB 10        37 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-7 MPH.          NW 2-5 MPH.
TRANSPORT WINDS               W 3-7 MPH.          NW 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED FEB 10        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          48 (POOR).
OUTLOOK FOR WED FEB 10        35 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 4-9 MPH.          S 12-22 MPH.
TRANSPORT WINDS               S 5-10 MPH.         S 14-24 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED FEB 10        POOR.

VENTILATION INDEX (CATEGORY)  34 (POOR).          81 (POOR).
OUTLOOK FOR WED FEB 10        91 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       30 (POOR)
ELLENSBURG     25 (POOR)
GOLDENDALE     52 (POOR)
TRI-CITIES     53 (POOR)
WALLA WALLA    45 (POOR)
YAKIMA         40 (POOR)
BEND           60 (POOR)
PRINEVILLE     92 (POOR)
ENTERPRISE     25 (POOR)
HERMISTON      53 (POOR)
JOHN DAY       39 (POOR)
LA GRANDE     107 (POOR)
MADRAS         56 (POOR)
MEACHAM        63 (POOR)
PENDLETON      53 (POOR)
REDMOND       132 (POOR)
SENECA         33 (POOR)
THE DALLES     78 (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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