Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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616
AUUS46 KPDT 121652 CCA
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
852 AM PST FRI FEB 12 2016

...AIR STAGNATION ADVISORY IN EFFECT THROUGH 10 AM SATURDAY FOR THE
COLUMBIA BASIN AND THE YAKIMA VALLEY...

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-9 MPH.         SW 4-8 MPH.
TRANSPORT WINDS               SW 3-10 MPH.        S 5-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT FEB 13        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          91 (POOR).
OUTLOOK FOR SAT FEB 13        270 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-4 MPH.          SW 4-5 MPH.
TRANSPORT WINDS               E 4-5 MPH.          SE 3-7 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT FEB 13        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          47 (POOR).
OUTLOOK FOR SAT FEB 13        192 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 10-23 MPH.        S 10-25 MPH.
TRANSPORT WINDS               S 10-13 MPH.        S 11-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT FEB 13        FAIR.

VENTILATION INDEX (CATEGORY)  38 (POOR).          70 (POOR).
OUTLOOK FOR SAT FEB 13        249 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       25 (POOR)
ELLENSBURG     25 (POOR)
GOLDENDALE     45 (POOR)
TRI-CITIES     31 (POOR)
WALLA WALLA   129 (POOR)
YAKIMA         27 (POOR)
BEND          214 (POOR)
PRINEVILLE    176 (POOR)
ENTERPRISE     44 (POOR)
HERMISTON      29 (POOR)
JOHN DAY       82 (POOR)
LA GRANDE      74 (POOR)
MADRAS        194 (POOR)
MEACHAM        67 (POOR)
PENDLETON     151 (POOR)
REDMOND       170 (POOR)
SENECA         50 (POOR)
THE DALLES     34 (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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