Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 311143
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
340 AM PST SAT JAN 31 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 2-5 MPH.        NE 2-5 MPH.
TRANSPORT WINDS               VRB 2-5 MPH.        NE 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN FEB 1         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          61 (POOR).
OUTLOOK FOR SUN FEB 1         46 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 2-4 MPH.        NE 2-5 MPH.
TRANSPORT WINDS               VRB 2-4 MPH.        NE 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN FEB 1         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          46 (POOR).
OUTLOOK FOR SUN FEB 1         61 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 2-4 MPH.        N 3-6 MPH.
TRANSPORT WINDS               VRB 2-4 MPH.        N 4-7 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN FEB 1         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          60 (POOR).
OUTLOOK FOR SUN FEB 1         174 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       46 (POOR)
ELLENSBURG     31 (POOR)
GOLDENDALE     62 (POOR)
TRI-CITIES     92 (POOR)
WALLA WALLA    32 (POOR)
YAKIMA         37 (POOR)
BEND           33 (POOR)
PRINEVILLE     31 (POOR)
ENTERPRISE     44 (POOR)
HERMISTON      90 (POOR)
JOHN DAY       39 (POOR)
LA GRANDE      59 (POOR)
MADRAS         70 (POOR)
MEACHAM        33 (POOR)
PENDLETON      50 (POOR)
REDMOND        46 (POOR)
SENECA         81 (POOR)
THE DALLES     66 (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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