293
AUUS46 KPDT 081246
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
446 AM PST FRI NOV 8 2024

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 E 2-5 MPH.          N 2-4 MPH.
TRANSPORT WINDS               SE 2-5 MPH.         E 3-6 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT NOV 9         POOR.
OUTLOOK FOR SUN NOV 10        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          28 (POOR).
OUTLOOK FOR SAT NOV 9         71 (POOR).
OUTLOOK FOR SUN NOV 10        259 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 2-4 MPH.         E 2-4 MPH.
TRANSPORT WINDS               SW 2-4 MPH.         SE 3-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT NOV 9         POOR.
OUTLOOK FOR SUN NOV 10        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          36 (POOR).
OUTLOOK FOR SAT NOV 9         66 (POOR).
OUTLOOK FOR SUN NOV 10        113 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 7-12 MPH.         S 8-14 MPH.
TRANSPORT WINDS               S 7-12 MPH.         S 10-16 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT NOV 9         FAIR.
OUTLOOK FOR SUN NOV 10        FAIR.

VENTILATION INDEX (CATEGORY)  51 (POOR).          124 (POOR).
OUTLOOK FOR SAT NOV 9         236 (POOR).
OUTLOOK FOR SUN NOV 10        307 (FAIR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 4-9 MPH.         NW 2-4 MPH.
TRANSPORT WINDS               SE 4-9 MPH.         SE 3-5 MPH.
MIXING HEIGHT                 NEAR SURFACE.       2000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT NOV 9         POOR.
OUTLOOK FOR SUN NOV 10        FAIR.

VENTILATION INDEX (CATEGORY)  28 (POOR).          31 (POOR).
OUTLOOK FOR SAT NOV 9         90 (POOR).
OUTLOOK FOR SUN NOV 10        425 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       40 (POOR)
ELLENSBURG     40 (POOR)
GOLDENDALE     38 (POOR)
TRI-CITIES     26 (POOR)
WALLA WALLA    33 (POOR)
YAKIMA         39 (POOR)
BEND          117 (POOR)
PRINEVILLE    120 (POOR)
ENTERPRISE     33 (POOR)
HERMISTON      28 (POOR)
JOHN DAY      111 (POOR)
LA GRANDE     103 (POOR)
MADRAS         40 (POOR)
MEACHAM        42 (POOR)
PENDLETON      26 (POOR)
REDMOND        77 (POOR)
SENECA        126 (POOR)
THE DALLES     34 (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.
$$