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 211134
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
434 AM PDT SUN SEP 21 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 0-5 MPH.        NW 2-6 MPH.
TRANSPORT WINDS               SW 0-5 MPH.         NW 2-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3300 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON SEP 22        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          77 (POOR).
OUTLOOK FOR MON SEP 22        553 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-6 MPH.         VRB 0-5 MPH.
TRANSPORT WINDS               NW 4-8 MPH.         W 2-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON SEP 22        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          100 (POOR).
OUTLOOK FOR MON SEP 22        450 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 0-4 MPH.         SW 0-5 MPH.
TRANSPORT WINDS               SE 2-5 MPH.         S 2-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON SEP 22        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          276 (POOR).
OUTLOOK FOR MON SEP 22        386 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      143 (POOR)
ELLENSBURG    136 (POOR)
GOLDENDALE    113 (POOR)
TRI-CITIES    104 (POOR)
WALLA WALLA    69 (POOR)
YAKIMA         95 (POOR)
BEND          156 (POOR)
ENTERPRISE    136 (POOR)
HERMISTON      94 (POOR)
JOHN DAY      224 (POOR)
LA GRANDE     293 (POOR)
MADRAS         93 (POOR)
MEACHAM        29 (POOR)
PENDLETON      78 (POOR)
REDMOND       161 (POOR)
SENECA        340 (FAIR)
THE DALLES     58 (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.