Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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789
AUUS46 KPDT 051200
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PST FRI FEB 5 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 2-6 MPH.         SE 10-20 MPH.
TRANSPORT WINDS               SE 2-6 MPH.         SW 12-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT FEB 6         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          162 (POOR).
OUTLOOK FOR SAT FEB 6         325 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 1-5 MPH.         SE 5-10 MPH.
TRANSPORT WINDS               SW 1-5 MPH.         SW 25-35 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT FEB 6         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          43 (POOR).
OUTLOOK FOR SAT FEB 6         74 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 10-20 MPH.        S 20-30 MPH.
TRANSPORT WINDS               S 10-20 MPH.        SW 20-30 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           FAIR.               FAIR.
OUTLOOK FOR SAT FEB 6         POOR.

VENTILATION INDEX (CATEGORY)  62 (POOR).          145 (POOR).
OUTLOOK FOR SAT FEB 6         104 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       25 (POOR)
ELLENSBURG     25 (POOR)
GOLDENDALE     25 (POOR)
TRI-CITIES     76 (POOR)
WALLA WALLA   144 (POOR)
YAKIMA         25 (POOR)
BEND          118 (POOR)
PRINEVILLE     96 (POOR)
ENTERPRISE     73 (POOR)
HERMISTON      61 (POOR)
JOHN DAY       61 (POOR)
LA GRANDE     169 (POOR)
MADRAS        172 (POOR)
MEACHAM       105 (POOR)
PENDLETON     168 (POOR)
REDMOND       150 (POOR)
SENECA         69 (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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