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
575
AUUS46 KPDT 221051
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
351 AM PDT TUE AUG 22 2017

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 3-6 MPH.         NW 3-7 MPH.
TRANSPORT WINDS               S 3-7 MPH.          W 5-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED AUG 23        FAIR.

VENTILATION INDEX (CATEGORY)  28 (POOR).          189 (POOR).
OUTLOOK FOR WED AUG 23        510 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-9 MPH.         SE 2-5 MPH.
TRANSPORT WINDS               NW 5-9 MPH.         SW 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR WED AUG 23        FAIR.

VENTILATION INDEX (CATEGORY)  27 (POOR).          239 (POOR).
OUTLOOK FOR WED AUG 23        210 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-5 MPH.         SW 2-5 MPH.
TRANSPORT WINDS               S 2-5 MPH.          SW 5-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       14000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED AUG 23        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          740 (GOOD).
OUTLOOK FOR WED AUG 23        331 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      371 (FAIR)
ELLENSBURG    550 (FAIR)
GOLDENDALE    234 (POOR)
TRI-CITIES    147 (POOR)
WALLA WALLA   222 (POOR)
YAKIMA        381 (FAIR)
BEND          428 (FAIR)
PRINEVILLE    499 (FAIR)
ENTERPRISE    672 (GOOD)
HERMISTON     181 (POOR)
JOHN DAY      995 (GOOD)
LA GRANDE     739 (GOOD)
MADRAS        348 (FAIR)
MEACHAM       470 (FAIR)
PENDLETON     177 (POOR)
REDMOND       448 (FAIR)
SENECA        917 (GOOD)
THE DALLES    261 (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.