Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 011100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT WED JUL 1 2015

*** 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.         NW-N 4-9 MPH.
TRANSPORT WINDS               SE 4-9 MPH.         SW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUL 2         FAIR.

VENTILATION INDEX (CATEGORY)  48 (POOR).          144 (POOR).
OUTLOOK FOR THU JUL 2         292 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 8-16 MPH.        NE 5-10 MPH.
TRANSPORT WINDS               NW 8-16 MPH.        W 6-12 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8000 FT MSL.
DISPERSION CATEGORY           FAIR.               FAIR.
OUTLOOK FOR THU JUL 2         GOOD.

VENTILATION INDEX (CATEGORY)  55 (POOR).          122 (POOR).
OUTLOOK FOR THU JUL 2         353 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 0-4 MPH.         N 5-10 MPH.
TRANSPORT WINDS               NW 0-4 MPH.         SW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR THU JUL 2         GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          242 (POOR).
OUTLOOK FOR THU JUL 2         391 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       98 (POOR)
ELLENSBURG     77 (POOR)
GOLDENDALE    112 (POOR)
TRI-CITIES    187 (POOR)
WALLA WALLA   100 (POOR)
YAKIMA         46 (POOR)
BEND           83 (POOR)
PRINEVILLE    151 (POOR)
ENTERPRISE    225 (POOR)
HERMISTON     172 (POOR)
JOHN DAY      297 (POOR)
LA GRANDE     230 (POOR)
MADRAS        106 (POOR)
MEACHAM       142 (POOR)
PENDLETON     160 (POOR)
REDMOND       100 (POOR)
SENECA        221 (POOR)
THE DALLES    181 (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/FORECAST/FWXGRAPHICALVENTILATION.PHP?WFO=PDT

IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.

$$



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