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
947
AUUS46 KPDT 241155
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
455 AM PDT FRI MAR 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-SE 4-9 MPH.       SW 12-16 MPH.
TRANSPORT WINDS               S-SE 4-9 MPH.       SW 19-27 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT MAR 25        GOOD.

VENTILATION INDEX (CATEGORY)  36 (POOR).          659 (GOOD).
OUTLOOK FOR SAT MAR 25        918 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 3-5 MPH.         SW 8-14 MPH.
TRANSPORT WINDS               SE 3-5 MPH.         SW 12-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SAT MAR 25        FAIR.

VENTILATION INDEX (CATEGORY)  58 (POOR).          369 (FAIR).
OUTLOOK FOR SAT MAR 25        956 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 12-21 MPH.        S 15-25 MPH.
TRANSPORT WINDS               S 12-21 MPH.        S 17-23 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR SAT MAR 25        GOOD.

VENTILATION INDEX (CATEGORY)  105 (POOR).         352 (FAIR).
OUTLOOK FOR SAT MAR 25        651 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       55 (POOR)
ELLENSBURG     64 (POOR)
GOLDENDALE    328 (FAIR)
TRI-CITIES    607 (GOOD)
WALLA WALLA   561 (FAIR)
YAKIMA        200 (POOR)
BEND          690 (GOOD)
PRINEVILLE    723 (GOOD)
ENTERPRISE    282 (POOR)
HERMISTON     591 (FAIR)
JOHN DAY      320 (FAIR)
LA GRANDE     463 (FAIR)
MADRAS        766 (GOOD)
MEACHAM       435 (FAIR)
PENDLETON     616 (GOOD)
REDMOND       786 (GOOD)
SENECA        309 (FAIR)
THE DALLES    257 (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.