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 311100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT FRI OCT 31 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 3-7 MPH.         SW 5-10 MPH.
TRANSPORT WINDS               SE 3-7 MPH.         SW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT NOV 1         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          318 (FAIR).
OUTLOOK FOR SAT NOV 1         141 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 0-4 MPH.         W 5-10 MPH.
TRANSPORT WINDS               SW 0-4 MPH.         W 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT NOV 1         FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          231 (POOR).
OUTLOOK FOR SAT NOV 1         275 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 9-16 MPH.        S 15-20 MPH.
TRANSPORT WINDS               SW 9-16 MPH.        SW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT NOV 1         POOR.

VENTILATION INDEX (CATEGORY)  29 (POOR).          927 (GOOD).
OUTLOOK FOR SAT NOV 1         104 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      113 (POOR)
ELLENSBURG    163 (POOR)
GOLDENDALE    233 (POOR)
TRI-CITIES    346 (FAIR)
WALLA WALLA   199 (POOR)
YAKIMA        185 (POOR)
BEND          127 (POOR)
ENTERPRISE   1004 (GOOD)
HERMISTON     383 (FAIR)
JOHN DAY      771 (GOOD)
LA GRANDE     919 (GOOD)
MADRAS        221 (POOR)
MEACHAM       215 (POOR)
PENDLETON     234 (POOR)
REDMOND       196 (POOR)
SENECA        971 (GOOD)
THE DALLES    313 (FAIR)

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.