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 271200
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PST FRI FEB 27 2015

*** 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.         N-NE 12-18 MPH.
TRANSPORT WINDS               SE 2-6 MPH.         NE 12-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT FEB 28        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          388 (FAIR).
OUTLOOK FOR SAT FEB 28        750 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 0-4 MPH.         NE 10-15 MPH.
TRANSPORT WINDS               SW 0-4 MPH.         NE 15-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT FEB 28        GOOD.

VENTILATION INDEX (CATEGORY)  27 (POOR).          709 (GOOD).
OUTLOOK FOR SAT FEB 28        1004 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-4 MPH.         N 5-10 MPH.
TRANSPORT WINDS               NW 0-4 MPH.         SE 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT FEB 28        FAIR.

VENTILATION INDEX (CATEGORY)  26 (POOR).          194 (POOR).
OUTLOOK FOR SAT FEB 28        343 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      268 (POOR)
ELLENSBURG    483 (FAIR)
GOLDENDALE    272 (POOR)
TRI-CITIES    593 (FAIR)
WALLA WALLA   214 (POOR)
YAKIMA        755 (GOOD)
BEND          759 (GOOD)
PRINEVILLE    711 (GOOD)
ENTERPRISE    217 (POOR)
HERMISTON     526 (FAIR)
JOHN DAY      132 (POOR)
LA GRANDE     219 (POOR)
MADRAS        488 (FAIR)
MEACHAM       197 (POOR)
PENDLETON     285 (POOR)
REDMOND       727 (GOOD)
SENECA        121 (POOR)
THE DALLES     98 (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.

$$





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