Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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349
AUUS46 KPDT 241100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT SUN JUL 24 2016

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 3-7 MPH.         SE-SW 4-9 MPH.
TRANSPORT WINDS               SE 3-7 MPH.         SW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7000 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON JUL 25        POOR.

VENTILATION INDEX (CATEGORY)  37 (POOR).          251 (POOR).
OUTLOOK FOR MON JUL 25        119 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W-NW 4-9 MPH.       W-NW 4-9 MPH.
TRANSPORT WINDS               W-NW 4-9 MPH.       NW 5-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR MON JUL 25        POOR.

VENTILATION INDEX (CATEGORY)  40 (POOR).          233 (POOR).
OUTLOOK FOR MON JUL 25        268 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SW 2-6 MPH.         SE-S 2-6 MPH.
TRANSPORT WINDS               SW 2-6 MPH.         SW 10-15 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR MON JUL 25        GOOD.

VENTILATION INDEX (CATEGORY)  30 (POOR).          259 (POOR).
OUTLOOK FOR MON JUL 25        333 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      222 (POOR)
ELLENSBURG    320 (FAIR)
GOLDENDALE    279 (POOR)
TRI-CITIES    218 (POOR)
WALLA WALLA   259 (POOR)
YAKIMA        275 (POOR)
BEND          279 (POOR)
PRINEVILLE    194 (POOR)
ENTERPRISE    327 (FAIR)
HERMISTON     258 (POOR)
JOHN DAY      393 (FAIR)
LA GRANDE     235 (POOR)
MADRAS        251 (POOR)
MEACHAM       154 (POOR)
PENDLETON     312 (FAIR)
REDMOND        95 (POOR)
SENECA        325 (FAIR)
THE DALLES    251 (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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