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 241334
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
530 AM PST FRI FEB 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                 S 7-10 MPH.         SW 4-8 MPH.
TRANSPORT WINDS               S 6-15 MPH.         SW 7-11 MPH.
MIXING HEIGHT                 2000 FT MSL.        7500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT FEB 25        FAIR.

VENTILATION INDEX (CATEGORY)  141 (POOR).         483 (FAIR).
OUTLOOK FOR SAT FEB 25        331 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 2-7 MPH.          SE 1-3 MPH.
TRANSPORT WINDS               W 2-7 MPH.          S 2-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT FEB 25        FAIR.

VENTILATION INDEX (CATEGORY)  27 (POOR).          75 (POOR).
OUTLOOK FOR SAT FEB 25        137 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW-W 4-6 MPH.       S 1-4 MPH.
TRANSPORT WINDS               W 5-6 MPH.          SW 3-8 MPH.
MIXING HEIGHT                 5500 FT MSL.        9500 FT MSL.
DISPERSION CATEGORY           FAIR.               FAIR.
OUTLOOK FOR SAT FEB 25        GOOD.

VENTILATION INDEX (CATEGORY)  166 (POOR).         182 (POOR).
OUTLOOK FOR SAT FEB 25        449 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      105 (POOR)
ELLENSBURG    119 (POOR)
GOLDENDALE    141 (POOR)
TRI-CITIES    262 (POOR)
WALLA WALLA   534 (FAIR)
YAKIMA         83 (POOR)
BEND          424 (FAIR)
PRINEVILLE    401 (FAIR)
ENTERPRISE     62 (POOR)
HERMISTON     439 (FAIR)
JOHN DAY      314 (FAIR)
LA GRANDE     175 (POOR)
MADRAS        436 (FAIR)
MEACHAM       331 (FAIR)
PENDLETON     506 (FAIR)
REDMOND       419 (FAIR)
SENECA        319 (FAIR)
THE DALLES     70 (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.