293
AUUS46 KPDT 061223
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
423 AM PST WED NOV 6 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 3-8 MPH.         NE 3-5 MPH.
TRANSPORT WINDS               S 4-7 MPH.          SE 3-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR THU NOV 7         POOR.
OUTLOOK FOR FRI NOV 8         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          65 (POOR).
OUTLOOK FOR THU NOV 7         41 (POOR).
OUTLOOK FOR FRI NOV 8         33 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 1-4 MPH.          SE 2-5 MPH.
TRANSPORT WINDS               W 2-4 MPH.          SE 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR THU NOV 7         POOR.
OUTLOOK FOR FRI NOV 8         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          70 (POOR).
OUTLOOK FOR THU NOV 7         43 (POOR).
OUTLOOK FOR FRI NOV 8         32 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 1-3 MPH.         NW 1-3 MPH.
TRANSPORT WINDS               SE 3-4 MPH.         NE 2-4 MPH.
MIXING HEIGHT                 NEAR SURFACE.       5000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR THU NOV 7         POOR.
OUTLOOK FOR FRI NOV 8         POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          44 (POOR).
OUTLOOK FOR THU NOV 7         166 (POOR).
OUTLOOK FOR FRI NOV 8         138 (POOR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 3-7 MPH.         NE 2-5 MPH.
TRANSPORT WINDS               S 5-7 MPH.          E 3-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       3000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR THU NOV 7         POOR.
OUTLOOK FOR FRI NOV 8         POOR.

VENTILATION INDEX (CATEGORY)  26 (POOR).          67 (POOR).
OUTLOOK FOR THU NOV 7         39 (POOR).
OUTLOOK FOR FRI NOV 8         46 (POOR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       55 (POOR)
ELLENSBURG     67 (POOR)
GOLDENDALE     69 (POOR)
TRI-CITIES     44 (POOR)
WALLA WALLA    71 (POOR)
YAKIMA         62 (POOR)
BEND          149 (POOR)
PRINEVILLE    184 (POOR)
ENTERPRISE     48 (POOR)
HERMISTON      40 (POOR)
JOHN DAY       56 (POOR)
LA GRANDE      44 (POOR)
MADRAS        124 (POOR)
MEACHAM        60 (POOR)
PENDLETON      76 (POOR)
REDMOND       180 (POOR)
SENECA         62 (POOR)
THE DALLES    123 (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.
$$