199
AUUS46 KPDT 021202
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
502 AM PDT TUE JUL 2 2024

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 9-15 MPH.        W 11-14 MPH.
TRANSPORT WINDS               SW 10-16 MPH.       W 12-16 MPH.
MIXING HEIGHT                 2000 FT MSL.        8000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR WED JUL 3         FAIR.
OUTLOOK FOR THU JUL 4         POOR.

VENTILATION INDEX (CATEGORY)  226 (POOR).         734 (GOOD).
OUTLOOK FOR WED JUL 3         442 (FAIR).
OUTLOOK FOR THU JUL 4         229 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-8 MPH.          NW 8-14 MPH.
TRANSPORT WINDS               W 5-9 MPH.          NW 8-14 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR WED JUL 3         FAIR.
OUTLOOK FOR THU JUL 4         POOR.

VENTILATION INDEX (CATEGORY)  101 (POOR).         516 (FAIR).
OUTLOOK FOR WED JUL 3         346 (FAIR).
OUTLOOK FOR THU JUL 4         154 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 2-5 MPH.         NW 9-12 MPH.
TRANSPORT WINDS               W 6-8 MPH.          W 10-14 MPH.
MIXING HEIGHT                 4500 FT MSL.        9500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR WED JUL 3         GOOD.
OUTLOOK FOR THU JUL 4         GOOD.

VENTILATION INDEX (CATEGORY)  158 (POOR).         620 (GOOD).
OUTLOOK FOR WED JUL 3         544 (FAIR).
OUTLOOK FOR THU JUL 4         223 (POOR).

FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 7-14 MPH.         W 10-13 MPH.
TRANSPORT WINDS               SW 10-17 MPH.       W 12-16 MPH.
MIXING HEIGHT                 2500 FT MSL.        7000 FT MSL.
DISPERSION CATEGORY           FAIR.               GOOD.
OUTLOOK FOR WED JUL 3         FAIR.
OUTLOOK FOR THU JUL 4         FAIR.

VENTILATION INDEX (CATEGORY)  260 (POOR).         690 (GOOD).
OUTLOOK FOR WED JUL 3         434 (FAIR).
OUTLOOK FOR THU JUL 4         343 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      745 (GOOD)
ELLENSBURG    964 (GOOD)
GOLDENDALE    640 (GOOD)
TRI-CITIES    707 (GOOD)
WALLA WALLA   680 (GOOD)
YAKIMA        652 (GOOD)
BEND          504 (FAIR)
PRINEVILLE    490 (FAIR)
ENTERPRISE    621 (GOOD)
HERMISTON     652 (GOOD)
JOHN DAY      628 (GOOD)
LA GRANDE     685 (GOOD)
MADRAS        495 (FAIR)
MEACHAM       533 (FAIR)
PENDLETON     727 (GOOD)
REDMOND       465 (FAIR)
SENECA        650 (GOOD)
THE DALLES    682 (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.
$$