Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 201142
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
336 AM PST THU NOV 20 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-5 MPH.         SW 2-5 MPH.
TRANSPORT WINDS               SE 3-6 MPH.         SW 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR FRI NOV 21        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          25 (POOR).
OUTLOOK FOR FRI NOV 21        75 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 2-4 MPH.        SE 2-4 MPH.
TRANSPORT WINDS               VRB 2-5 MPH.        SE 3-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR FRI NOV 21        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          30 (POOR).
OUTLOOK FOR FRI NOV 21        41 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 15-25 MPH.        S 10-20 MPH.
TRANSPORT WINDS               S 15-25 MPH.        S 10-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR FRI NOV 21        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          76 (POOR).
OUTLOOK FOR FRI NOV 21        125 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       25 (POOR)
ELLENSBURG     25 (POOR)
GOLDENDALE     25 (POOR)
TRI-CITIES     25 (POOR)
WALLA WALLA    25 (POOR)
YAKIMA         32 (POOR)
BEND           65 (POOR)
PRINEVILLE     44 (POOR)
ENTERPRISE     55 (POOR)
HERMISTON      25 (POOR)
JOHN DAY       82 (POOR)
LA GRANDE      86 (POOR)
MADRAS         49 (POOR)
MEACHAM        53 (POOR)
PENDLETON      25 (POOR)
REDMOND        46 (POOR)
SENECA         72 (POOR)
THE DALLES     25 (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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