weather.gov     
National Weather Service

Daily Dispersion Outlook
NWS Homepage
This page is being discontinued on March 12, 2014.
The same data is available at this site. Please update your bookmarks.
Thank you, and we apologize for the inconvenience.
Please send an email to SR-SRH.Webmaster@noaa.gov with any concerns.


Current Version
Previous Version:    01  02  03  04  05  06  
[Printable]
006
AUUS46 KPDT 201150
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
449 AM PDT MON OCT 20 2014

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE-S 3-6 MPH.       SW-W 10-15 MPH.
TRANSPORT WINDS               SE-S 3-6 MPH.       SW 13-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE OCT 21        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          496 (FAIR).
OUTLOOK FOR TUE OCT 21        878 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 2-4 MPH.          SW-W 9-13 MPH.
TRANSPORT WINDS               W 2-4 MPH.          SW-W 8-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR TUE OCT 21        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          239 (POOR).
OUTLOOK FOR TUE OCT 21        566 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 5-11 MPH.         S 9-17 MPH.
TRANSPORT WINDS               S 5-11 MPH.         S 15-17 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR TUE OCT 21        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          700 (GOOD).
OUTLOOK FOR TUE OCT 21        333 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       98 (POOR)
ELLENSBURG     99 (POOR)
GOLDENDALE    424 (FAIR)
TRI-CITIES    251 (POOR)
WALLA WALLA   633 (GOOD)
YAKIMA        125 (POOR)
BEND          344 (FAIR)
ENTERPRISE    929 (GOOD)
HERMISTON     440 (FAIR)
JOHN DAY      874 (GOOD)
LA GRANDE     783 (GOOD)
MADRAS        506 (FAIR)
MEACHAM       891 (GOOD)
PENDLETON     708 (GOOD)
REDMOND       484 (FAIR)
SENECA       1050 (GOOD)
THE DALLES    290 (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.

$$








U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE