Text Products for DDO Issued by PDT

Daily Dispersion Outlook
Issued by NWS Pendleton, OR
Versions: 1 2 3 4 5 6 7
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AUUS46 KPDT 161430
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
730 AM PDT TUE APR 16 2024

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 12-25 MPH.       W 13-21 MPH.
TRANSPORT WINDS               SW 15-23 MPH.       W 15-21 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR WED APR 17        FAIR.
OUTLOOK FOR THU APR 18        FAIR.

VENTILATION INDEX (CATEGORY)  272 (POOR).         1020 (GOOD).
OUTLOOK FOR WED APR 17        445 (FAIR).
OUTLOOK FOR THU APR 18        570 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 8-11 MPH.         NW 12-16 MPH.
TRANSPORT WINDS               NW 8-12 MPH.        NW 16-19 MPH.
MIXING HEIGHT                 2500 FT MSL.        9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED APR 17        FAIR.
OUTLOOK FOR THU APR 18        FAIR.

VENTILATION INDEX (CATEGORY)  252 (POOR).         1047 (GOOD).
OUTLOOK FOR WED APR 17        465 (FAIR).
OUTLOOK FOR THU APR 18        759 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 7-9 MPH.          NW 13-17 MPH.
TRANSPORT WINDS               W 8-12 MPH.         W 18-20 MPH.
MIXING HEIGHT                 4000 FT MSL.        8000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED APR 17        GOOD.
OUTLOOK FOR THU APR 18        GOOD.

VENTILATION INDEX (CATEGORY)  229 (POOR).         758 (GOOD).
OUTLOOK FOR WED APR 17        591 (FAIR).
OUTLOOK FOR THU APR 18        438 (FAIR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 14-20 MPH.       W 14-21 MPH.
TRANSPORT WINDS               SW 14-20 MPH.       W 18-23 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           GOOD.               GOOD.
OUTLOOK FOR WED APR 17        FAIR.
OUTLOOK FOR THU APR 18        FAIR.

VENTILATION INDEX (CATEGORY)  284 (POOR).         947 (GOOD).
OUTLOOK FOR WED APR 17        406 (FAIR).
OUTLOOK FOR THU APR 18        491 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM     1050 (GOOD)
ELLENSBURG   1050 (GOOD)
GOLDENDALE   1050 (GOOD)
TRI-CITIES   1050 (GOOD)
WALLA WALLA   938 (GOOD)
YAKIMA       1050 (GOOD)
BEND          432 (FAIR)
PRINEVILLE    656 (GOOD)
ENTERPRISE    730 (GOOD)
HERMISTON     966 (GOOD)
JOHN DAY      686 (GOOD)
LA GRANDE     857 (GOOD)
MADRAS        552 (FAIR)
MEACHAM       795 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND       669 (GOOD)
SENECA        681 (GOOD)
THE DALLES   1050 (GOOD)

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/GFORECAST/GINDEX.PHP?FCST=MIXHGT,VENTCAT,TRANSWIND,VENTINDX&VT=0,72

IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.
$$
National Weather Service Weather Forecast Office
