218
AUUS46 KPDT 171214
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
514 AM PDT SAT AUG 17 2024

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NE 3-6 MPH.         NE 10-15 MPH.
TRANSPORT WINDS               NE 3-6 MPH.         E 12-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 18        FAIR.
OUTLOOK FOR MON AUG 19        FAIR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          588 (FAIR).
OUTLOOK FOR SUN AUG 18        557 (FAIR).
OUTLOOK FOR MON AUG 19        424 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 3-6 MPH.         NE 10-15 MPH.
TRANSPORT WINDS               NE 4-7 MPH.         E 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 18        GOOD.
OUTLOOK FOR MON AUG 19        FAIR.

VENTILATION INDEX (CATEGORY)  36 (POOR).          679 (GOOD).
OUTLOOK FOR SUN AUG 18        916 (GOOD).
OUTLOOK FOR MON AUG 19        432 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 E 2-4 MPH.          SE 6-12 MPH.
TRANSPORT WINDS               E 2-5 MPH.          SE 12-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       14000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 18        GOOD.
OUTLOOK FOR MON AUG 19        GOOD.

VENTILATION INDEX (CATEGORY)  27 (POOR).          907 (GOOD).
OUTLOOK FOR SUN AUG 18        972 (GOOD).
OUTLOOK FOR MON AUG 19        398 (FAIR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NE 2-5 MPH.         NE 8-14 MPH.
TRANSPORT WINDS               NE 3-6 MPH.         E 12-18 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 18        FAIR.
OUTLOOK FOR MON AUG 19        FAIR.

VENTILATION INDEX (CATEGORY)  27 (POOR).          665 (GOOD).
OUTLOOK FOR SUN AUG 18        447 (FAIR).
OUTLOOK FOR MON AUG 19        338 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      591 (FAIR)
ELLENSBURG    677 (GOOD)
GOLDENDALE    810 (GOOD)
TRI-CITIES    665 (GOOD)
WALLA WALLA   546 (FAIR)
YAKIMA        736 (GOOD)
BEND          695 (GOOD)
PRINEVILLE    708 (GOOD)
ENTERPRISE   1050 (GOOD)
HERMISTON     616 (GOOD)
JOHN DAY     1050 (GOOD)
LA GRANDE    1034 (GOOD)
MADRAS        368 (FAIR)
MEACHAM      1050 (GOOD)
PENDLETON     542 (FAIR)
REDMOND       524 (FAIR)
SENECA       1050 (GOOD)
THE DALLES    656 (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.
$$