Daily Dispersion Outlook
Issued by NWS Pendleton, OR

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7
000
AUUS46 KPDT 171206
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
405 AM PST FRI NOV 17 2017

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 10-19 MPH.       SW 15-25 MPH.
TRANSPORT WINDS               SW 13-21 MPH.       W 20-30 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR SAT NOV 18        POOR.

VENTILATION INDEX (CATEGORY)  230 (POOR).         1035 (GOOD).
OUTLOOK FOR SAT NOV 18        134 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-9  MPH.         W 12-20 MPH.
TRANSPORT WINDS               W 6-16 MPH.         W 20-26 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT NOV 18        POOR.

VENTILATION INDEX (CATEGORY)  115 (POOR).         1006 (GOOD).
OUTLOOK FOR SAT NOV 18        81 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 0-7 MPH.         W 8-12 MPH.
TRANSPORT WINDS               SW 2-7 MPH.         W 20-26 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT NOV 18        GOOD.

VENTILATION INDEX (CATEGORY)  103 (POOR).         1050 (GOOD).
OUTLOOK FOR SAT NOV 18        316 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      564 (FAIR)
ELLENSBURG    986 (GOOD)
GOLDENDALE   1009 (GOOD)
TRI-CITIES    843 (GOOD)
WALLA WALLA  1050 (GOOD)
YAKIMA        832 (GOOD)
BEND          963 (GOOD)
PRINEVILLE   1050 (GOOD)
ENTERPRISE   1050 (GOOD)
HERMISTON     994 (GOOD)
JOHN DAY     1043 (GOOD)
LA GRANDE    1050 (GOOD)
MADRAS       1050 (GOOD)
MEACHAM      1050 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND      1050 (GOOD)
SENECA       1050 (GOOD)
THE DALLES    750 (GOOD)

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.
$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.