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 8
992
AUUS46 KPDT 171248
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
448 AM PST WED JAN 17 2018

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 VRB 3-8 MPH.        VRB 3-9 MPH.
TRANSPORT WINDS               VRB 3-8 MPH.        VRB 3-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR THU JAN 18        POOR.

VENTILATION INDEX (CATEGORY)  27 (POOR).          53 (POOR).
OUTLOOK FOR THU JAN 18        214 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W-NW 2-5 MPH.       E 3-4 MPH.
TRANSPORT WINDS               W-NW 2-5 MPH.       E 3-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR THU JAN 18        FAIR.

VENTILATION INDEX (CATEGORY)  26 (POOR).          34 (POOR).
OUTLOOK FOR THU JAN 18        427 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 12-20 MPH.        S 18-30 MPH.
TRANSPORT WINDS               S 12-20 MPH.        S 18-30 MPH.
MIXING HEIGHT                 NEAR SURFACE.       NEAR SURFACE.
DISPERSION CATEGORY           FAIR.               FAIR.
OUTLOOK FOR THU JAN 18        POOR.

VENTILATION INDEX (CATEGORY)  107 (POOR).         181 (POOR).
OUTLOOK FOR THU JAN 18        122 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       47 (POOR)
ELLENSBURG     39 (POOR)
GOLDENDALE     46 (POOR)
TRI-CITIES     25 (POOR)
WALLA WALLA   103 (POOR)
YAKIMA         42 (POOR)
BEND          119 (POOR)
PRINEVILLE    157 (POOR)
ENTERPRISE    116 (POOR)
HERMISTON      36 (POOR)
JOHN DAY       65 (POOR)
LA GRANDE     206 (POOR)
MADRAS        159 (POOR)
MEACHAM       110 (POOR)
PENDLETON      73 (POOR)
REDMOND       193 (POOR)
SENECA         57 (POOR)
THE DALLES     85 (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.