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 061104
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
404 AM PDT WED MAY 6 2015

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 4-8 MPH.         NW 7-14 MPH.
TRANSPORT WINDS               SW 5-10 MPH.        W 10-20 MPH.
MIXING HEIGHT                 3500 FT MSL.        10500 FT MSL.
DISPERSION CATEGORY           GOOD.               GOOD.
OUTLOOK FOR THU MAY 7         GOOD.

VENTILATION INDEX (CATEGORY)  235 (POOR).         992 (GOOD).
OUTLOOK FOR THU MAY 7         864 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-6 MPH.          NW 6-12 MPH.
TRANSPORT WINDS               SW 4-8 MPH.         W 10-18 MPH.
MIXING HEIGHT                 4500 FT MSL.        12000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR THU MAY 7         GOOD.

VENTILATION INDEX (CATEGORY)  162 (POOR).         1020 (GOOD).
OUTLOOK FOR THU MAY 7         1050 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 6-12 MPH.        NW 12-20 MPH.
TRANSPORT WINDS               NW 8-14 MPH.        NW 14-24 MPH.
MIXING HEIGHT                 5500 FT MSL.        11000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR THU MAY 7         GOOD.

VENTILATION INDEX (CATEGORY)  127 (POOR).         882 (GOOD).
OUTLOOK FOR THU MAY 7         1050 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      904 (GOOD)
ELLENSBURG   1050 (GOOD)
GOLDENDALE    949 (GOOD)
TRI-CITIES    984 (GOOD)
WALLA WALLA   944 (GOOD)
YAKIMA       1050 (GOOD)
BEND         1050 (GOOD)
PRINEVILLE   1050 (GOOD)
ENTERPRISE    784 (GOOD)
HERMISTON    1047 (GOOD)
JOHN DAY     1050 (GOOD)
LA GRANDE     927 (GOOD)
MADRAS       1050 (GOOD)
MEACHAM       890 (GOOD)
PENDLETON    1031 (GOOD)
REDMOND      1050 (GOOD)
SENECA       1050 (GOOD)
THE DALLES   1050 (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.