Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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405
AUUS46 KPDT 271149
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
449 AM PDT SAT AUG 27 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-SE 5-11 MPH.      SW 20-24 MPH.
TRANSPORT WINDS               S-SE 5-11 MPH.      SW 21-29 MPH.
MIXING HEIGHT                 NEAR SURFACE.       8500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 28        FAIR.

VENTILATION INDEX (CATEGORY)  87 (POOR).          1050 (GOOD).
OUTLOOK FOR SUN AUG 28        643 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W-NW 5-9 MPH.       W 15-19 MPH.
TRANSPORT WINDS               W-NW 5-9 MPH.       W 19-22 MPH.
MIXING HEIGHT                 NEAR SURFACE.       7500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 28        POOR.

VENTILATION INDEX (CATEGORY)  27 (POOR).          851 (GOOD).
OUTLOOK FOR SUN AUG 28        290 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S-SE 1-6 MPH.       W-NW 9-13 MPH.
TRANSPORT WINDS               S-SE 1-6 MPH.       W-SW 17-21 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR SUN AUG 28        GOOD.

VENTILATION INDEX (CATEGORY)  34 (POOR).          974 (GOOD).
OUTLOOK FOR SUN AUG 28        585 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      588 (FAIR)
ELLENSBURG    941 (GOOD)
GOLDENDALE    613 (GOOD)
TRI-CITIES   1050 (GOOD)
WALLA WALLA  1050 (GOOD)
YAKIMA        661 (GOOD)
BEND          621 (GOOD)
PRINEVILLE    765 (GOOD)
ENTERPRISE   1050 (GOOD)
HERMISTON    1050 (GOOD)
JOHN DAY      674 (GOOD)
LA GRANDE     970 (GOOD)
MADRAS        813 (GOOD)
MEACHAM      1025 (GOOD)
PENDLETON    1050 (GOOD)
REDMOND       807 (GOOD)
SENECA        699 (GOOD)
THE DALLES    779 (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/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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