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
335
AUUS46 KPDT 181211
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
411 AM PST SAT NOV 18 2017

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 5-9 MPH.          S 2-5 MPH.
TRANSPORT WINDS               S 5-9 MPH.          S 3-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN NOV 19        GOOD.

VENTILATION INDEX (CATEGORY)  38 (POOR).          171 (POOR).
OUTLOOK FOR SUN NOV 19        277 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 2-6 MPH.         SE 1-4 MPH.
TRANSPORT WINDS               SW 2-6 MPH.         S 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN NOV 19        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          74 (POOR).
OUTLOOK FOR SUN NOV 19        282 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 6-8 MPH.          S 16-21 MPH.
TRANSPORT WINDS               S 6-8 MPH.          S 15-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN NOV 19        FAIR.

VENTILATION INDEX (CATEGORY)  43 (POOR).          302 (FAIR).
OUTLOOK FOR SUN NOV 19        255 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       48 (POOR)
ELLENSBURG     83 (POOR)
GOLDENDALE     79 (POOR)
TRI-CITIES     37 (POOR)
WALLA WALLA   354 (FAIR)
YAKIMA         42 (POOR)
BEND          116 (POOR)
PRINEVILLE    181 (POOR)
ENTERPRISE    169 (POOR)
HERMISTON      27 (POOR)
JOHN DAY      169 (POOR)
LA GRANDE     315 (FAIR)
MADRAS        165 (POOR)
MEACHAM       235 (POOR)
PENDLETON     174 (POOR)
REDMOND       177 (POOR)
SENECA        174 (POOR)
THE DALLES     25 (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.