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 291100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT WED JUL 29 2015

*** 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-NW 3-7 MPH.
TRANSPORT WINDS               SE 3-7 MPH.         NW 3-7 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR THU JUL 30        FAIR.

VENTILATION INDEX (CATEGORY)  29 (POOR).          221 (POOR).
OUTLOOK FOR THU JUL 30        554 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-7 MPH.          SE 3-7 MPH.
TRANSPORT WINDS               W 3-7 MPH.          SW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR THU JUL 30        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          275 (POOR).
OUTLOOK FOR THU JUL 30        478 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 0-4 MPH.         SW 5-10 MPH.
TRANSPORT WINDS               SW 0-4 MPH.         NW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU JUL 30        GOOD.

VENTILATION INDEX (CATEGORY)  26 (POOR).          227 (POOR).
OUTLOOK FOR THU JUL 30        594 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      334 (FAIR)
ELLENSBURG    579 (FAIR)
GOLDENDALE    215 (POOR)
TRI-CITIES    276 (POOR)
WALLA WALLA   268 (POOR)
YAKIMA        239 (POOR)
BEND          248 (POOR)
PRINEVILLE    217 (POOR)
ENTERPRISE    159 (POOR)
HERMISTON     161 (POOR)
JOHN DAY       63 (POOR)
LA GRANDE     234 (POOR)
MADRAS         43 (POOR)
MEACHAM       145 (POOR)
PENDLETON     131 (POOR)
REDMOND       200 (POOR)
SENECA         93 (POOR)
THE DALLES     86 (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.