Daily Dispersion Outlook
Issued by NWS Pendleton, OR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7
000
AUUS46 KPDT 281149
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
449 AM PDT FRI AUG 28 2015

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 4-7 MPH.          W 8-10 MPH.
TRANSPORT WINDS               S 4-7 MPH.          SW 17-19 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT AUG 29        GOOD.

VENTILATION INDEX (CATEGORY)  66 (POOR).          827 (GOOD).
OUTLOOK FOR SAT AUG 29        1050 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-7 MPH.         SW 9-11 MPH.
TRANSPORT WINDS               NW 5-7 MPH.         SW 17-19 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT AUG 29        GOOD.

VENTILATION INDEX (CATEGORY)  36 (POOR).          869 (GOOD).
OUTLOOK FOR SAT AUG 29        1050 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 3-6 MPH.          S 7-9 MPH.
TRANSPORT WINDS               S 3-6 MPH.          SW 16-17 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT AUG 29        GOOD.

VENTILATION INDEX (CATEGORY)  37 (POOR).          1039 (GOOD).
OUTLOOK FOR SAT AUG 29        1050 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      822 (GOOD)
ELLENSBURG    900 (GOOD)
GOLDENDALE    839 (GOOD)
TRI-CITIES    773 (GOOD)
WALLA WALLA   806 (GOOD)
YAKIMA        844 (GOOD)
BEND         1050 (GOOD)
PRINEVILLE   1036 (GOOD)
ENTERPRISE   1050 (GOOD)
HERMISTON     916 (GOOD)
JOHN DAY     1050 (GOOD)
LA GRANDE    1050 (GOOD)
MADRAS       1050 (GOOD)
MEACHAM       805 (GOOD)
PENDLETON     797 (GOOD)
REDMOND      1039 (GOOD)
SENECA       1050 (GOOD)
THE DALLES    834 (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.