551
AUUS46 KPDT 241247
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
447 AM PST SUN NOV 24 2024

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 4-9 MPH.         SE 5-9 MPH.
TRANSPORT WINDS               SE 5-9 MPH.         SE 6-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON NOV 25        POOR.
OUTLOOK FOR TUE NOV 26        POOR.

VENTILATION INDEX (CATEGORY)  26 (POOR).          82 (POOR).
OUTLOOK FOR MON NOV 25        82 (POOR).
OUTLOOK FOR TUE NOV 26        114 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 E 1-3 MPH.          E 2-5 MPH.
TRANSPORT WINDS               E 2-4 MPH.          E 3-7 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON NOV 25        POOR.
OUTLOOK FOR TUE NOV 26        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          48 (POOR).
OUTLOOK FOR MON NOV 25        31 (POOR).
OUTLOOK FOR TUE NOV 26        88 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 4-7 MPH.          S 10-15 MPH.
TRANSPORT WINDS               S 4-7 MPH.          S 12-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON NOV 25        FAIR.
OUTLOOK FOR TUE NOV 26        FAIR.

VENTILATION INDEX (CATEGORY)  35 (POOR).          212 (POOR).
OUTLOOK FOR MON NOV 25        300 (POOR).
OUTLOOK FOR TUE NOV 26        131 (POOR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 5-10 MPH.        SE 5-9 MPH.
TRANSPORT WINDS               SE 5-10 MPH.        S 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON NOV 25        FAIR.
OUTLOOK FOR TUE NOV 26        POOR.

VENTILATION INDEX (CATEGORY)  33 (POOR).          162 (POOR).
OUTLOOK FOR MON NOV 25        228 (POOR).
OUTLOOK FOR TUE NOV 26        115 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      168 (POOR)
ELLENSBURG     84 (POOR)
GOLDENDALE     91 (POOR)
TRI-CITIES     38 (POOR)
WALLA WALLA   102 (POOR)
YAKIMA         34 (POOR)
BEND          494 (FAIR)
PRINEVILLE    499 (FAIR)
ENTERPRISE    167 (POOR)
HERMISTON      38 (POOR)
JOHN DAY      286 (POOR)
LA GRANDE     200 (POOR)
MADRAS        509 (FAIR)
MEACHAM       217 (POOR)
PENDLETON     186 (POOR)
REDMOND       507 (FAIR)
SENECA        303 (FAIR)
THE DALLES     95 (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/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.
$$