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 041137
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
436 AM PDT FRI SEP 4 2015

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 3-6 MPH.          NW 6-8 MPH.
TRANSPORT WINDS               S 6-8 MPH.          NE 8-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT SEP 5         FAIR.

VENTILATION INDEX (CATEGORY)  36 (POOR).          443 (FAIR).
OUTLOOK FOR SAT SEP 5         517 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-7 MPH.          NE 4-8 MPH.
TRANSPORT WINDS               NW 6-8 MPH.         NE 7-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT SEP 5         GOOD.

VENTILATION INDEX (CATEGORY)  46 (POOR).          570 (FAIR).
OUTLOOK FOR SAT SEP 5         806 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 2-4 MPH.          N 8-12 MPH.
TRANSPORT WINDS               N 4-5 MPH.          NE 10-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       12000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT SEP 5         GOOD.

VENTILATION INDEX (CATEGORY)  45 (POOR).          677 (GOOD).
OUTLOOK FOR SAT SEP 5         482 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      565 (FAIR)
ELLENSBURG    804 (GOOD)
GOLDENDALE    387 (FAIR)
TRI-CITIES    398 (FAIR)
WALLA WALLA   443 (FAIR)
YAKIMA        639 (GOOD)
BEND          390 (FAIR)
PRINEVILLE    462 (FAIR)
ENTERPRISE    655 (GOOD)
HERMISTON     463 (FAIR)
JOHN DAY      441 (FAIR)
LA GRANDE     671 (GOOD)
MADRAS        476 (FAIR)
MEACHAM       475 (FAIR)
PENDLETON     454 (FAIR)
REDMOND       453 (FAIR)
SENECA        344 (FAIR)
THE DALLES    345 (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.