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 241014
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
314 AM PDT MON JUL 24 2017

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 3-7 MPH.        N 6-12 MPH.
TRANSPORT WINDS               NW 4-8 MPH.         N 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE JUL 25        FAIR.

VENTILATION INDEX (CATEGORY)  61 (POOR).          556 (FAIR).
OUTLOOK FOR TUE JUL 25        507 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-10 MPH.        NE 5-10 MPH.
TRANSPORT WINDS               NW 6-12 MPH.        N 8-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE JUL 25        POOR.

VENTILATION INDEX (CATEGORY)  103 (POOR).         636 (GOOD).
OUTLOOK FOR TUE JUL 25        225 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 6-12 MPH.        N 7-14 MPH.
TRANSPORT WINDS               NW 7-14 MPH.        NW 10-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE JUL 25        GOOD.

VENTILATION INDEX (CATEGORY)  30 (POOR).          461 (FAIR).
OUTLOOK FOR TUE JUL 25        421 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      167 (POOR)
ELLENSBURG    362 (FAIR)
GOLDENDALE    475 (FAIR)
TRI-CITIES    717 (GOOD)
WALLA WALLA   458 (FAIR)
YAKIMA        596 (FAIR)
BEND          333 (FAIR)
PRINEVILLE    469 (FAIR)
ENTERPRISE    468 (FAIR)
HERMISTON     616 (GOOD)
JOHN DAY      643 (GOOD)
LA GRANDE     470 (FAIR)
MADRAS        573 (FAIR)
MEACHAM       390 (FAIR)
PENDLETON     478 (FAIR)
REDMOND       427 (FAIR)
SENECA        733 (GOOD)
THE DALLES    535 (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.