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 141106
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
406 AM PDT SUN APR 14 2024

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 3-7 MPH.          NW 6-10 MPH.
TRANSPORT WINDS               S 3-7 MPH.          NW 7-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON APR 15        GOOD.
OUTLOOK FOR TUE APR 16        GOOD.

VENTILATION INDEX (CATEGORY)  43 (POOR).          289 (POOR).
OUTLOOK FOR MON APR 15        935 (GOOD).
OUTLOOK FOR TUE APR 16        966 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 4-8 MPH.         NW 6-11 MPH.
TRANSPORT WINDS               NW 4-8 MPH.         NW 6-11 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON APR 15        FAIR.
OUTLOOK FOR TUE APR 16        GOOD.

VENTILATION INDEX (CATEGORY)  50 (POOR).          346 (FAIR).
OUTLOOK FOR MON APR 15        601 (GOOD).
OUTLOOK FOR TUE APR 16        826 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-10 MPH.        SW 7-9 MPH.
TRANSPORT WINDS               NNW 5-10 MPH.       S 8-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR MON APR 15        GOOD.
OUTLOOK FOR TUE APR 16        GOOD.

VENTILATION INDEX (CATEGORY)  71 (POOR).          195 (POOR).
OUTLOOK FOR MON APR 15        566 (FAIR).
OUTLOOK FOR TUE APR 16        750 (GOOD).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 1-5 MPH.          NW 6-8 MPH.
TRANSPORT WINDS               S 1-5 MPH.          NW 6-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON APR 15        GOOD.
OUTLOOK FOR TUE APR 16        GOOD.

VENTILATION INDEX (CATEGORY)  34 (POOR).          208 (POOR).
OUTLOOK FOR MON APR 15        861 (GOOD).
OUTLOOK FOR TUE APR 16        924 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      405 (FAIR)
ELLENSBURG    635 (GOOD)
GOLDENDALE    436 (FAIR)
TRI-CITIES    341 (FAIR)
WALLA WALLA   124 (POOR)
YAKIMA        434 (FAIR)
BEND          893 (GOOD)
PRINEVILLE    939 (GOOD)
ENTERPRISE    170 (POOR)
HERMISTON     344 (FAIR)
JOHN DAY     1050 (GOOD)
LA GRANDE     174 (POOR)
MADRAS        745 (GOOD)
MEACHAM       219 (POOR)
PENDLETON     280 (POOR)
REDMOND       898 (GOOD)
SENECA       1050 (GOOD)
THE DALLES    448 (FAIR)

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
