Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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362
AUUS46 KPDT 261130
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
430 AM PDT FRI AUG 26 2016

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 2-6 MPH.          NW 4-6 MPH.
TRANSPORT WINDS               S 2-6 MPH.          NW 5-7 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT AUG 27        GOOD.

VENTILATION INDEX (CATEGORY)  27 (POOR).          358 (FAIR).
OUTLOOK FOR SAT AUG 27        1050 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W-NW 5-7 MPH.       S-SE 3-6 MPH.
TRANSPORT WINDS               W-NW 5-7 MPH.       W-NW 5-7 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SAT AUG 27        GOOD.

VENTILATION INDEX (CATEGORY)  28 (POOR).          319 (FAIR).
OUTLOOK FOR SAT AUG 27        892 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 N-NW 1-4 MPH.       N 5-7 MPH.
TRANSPORT WINDS               N-NW 1-4 MPH.       N 7-9 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SAT AUG 27        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          514 (FAIR).
OUTLOOK FOR SAT AUG 27        923 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      229 (POOR)
ELLENSBURG     94 (POOR)
GOLDENDALE    113 (POOR)
TRI-CITIES    390 (FAIR)
WALLA WALLA   299 (POOR)
YAKIMA        185 (POOR)
BEND          305 (FAIR)
PRINEVILLE    330 (FAIR)
ENTERPRISE    527 (FAIR)
HERMISTON     363 (FAIR)
JOHN DAY      340 (FAIR)
LA GRANDE     505 (FAIR)
MADRAS        492 (FAIR)
MEACHAM       344 (FAIR)
PENDLETON     374 (FAIR)
REDMOND       334 (FAIR)
SENECA        290 (POOR)
THE DALLES    303 (FAIR)

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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