Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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230
AUUS46 KPDT 021306
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
505 AM PST FRI DEC 2 2016

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 0-5 MPH.         SW 8-11 MPH.
TRANSPORT WINDS               S 4-10 MPH.         SW 10-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT DEC 3         GOOD.

VENTILATION INDEX (CATEGORY)  47 (POOR).          404 (FAIR).
OUTLOOK FOR SAT DEC 3         779 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 0-5 MPH.         S 6-10 MPH.
TRANSPORT WINDS               W 0-5 MPH.          SW 5-13 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT DEC 3         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          88 (POOR).
OUTLOOK FOR SAT DEC 3         374 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 0-3 MPH.          S 5-9 MPH.
TRANSPORT WINDS               S 0-4 MPH.          S 4-7 MPH.
MIXING HEIGHT                 4000 FT MSL.        5000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT DEC 3         FAIR.

VENTILATION INDEX (CATEGORY)  40 (POOR).          99 (POOR).
OUTLOOK FOR SAT DEC 3         402 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       41 (POOR)
ELLENSBURG     59 (POOR)
GOLDENDALE    126 (POOR)
TRI-CITIES    308 (FAIR)
WALLA WALLA   406 (FAIR)
YAKIMA         43 (POOR)
BEND          147 (POOR)
PRINEVILLE    174 (POOR)
ENTERPRISE     56 (POOR)
HERMISTON     394 (FAIR)
JOHN DAY       79 (POOR)
LA GRANDE     109 (POOR)
MADRAS        213 (POOR)
MEACHAM       150 (POOR)
PENDLETON     336 (FAIR)
REDMOND       166 (POOR)
SENECA         71 (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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