Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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835
AUUS46 KPDT 261106
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
406 AM PDT SUN MAR 26 2017

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

FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 3-6 MPH.         SW 4-8 MPH.
TRANSPORT WINDS               SE 3-6 MPH.         SW 9-16 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4500 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON MAR 27        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          283 (POOR).
OUTLOOK FOR MON MAR 27        962 (GOOD).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 3-7 MPH.          SE 4-8 MPH.
TRANSPORT WINDS               W 3-7 MPH.          SE 4-10 MPH.
MIXING HEIGHT                 NEAR SURFACE.       4000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR MON MAR 27        GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          63 (POOR).
OUTLOOK FOR MON MAR 27        677 (GOOD).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 S 4-11 MPH.         S 15-22 MPH.
TRANSPORT WINDS               S 4-11 MPH.         S 19-23 MPH.
MIXING HEIGHT                 NEAR SURFACE.       6500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR MON MAR 27        GOOD.

VENTILATION INDEX (CATEGORY)  28 (POOR).          708 (GOOD).
OUTLOOK FOR MON MAR 27        701 (GOOD).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM       74 (POOR)
ELLENSBURG     69 (POOR)
GOLDENDALE    104 (POOR)
TRI-CITIES    110 (POOR)
WALLA WALLA   613 (GOOD)
YAKIMA         66 (POOR)
BEND          494 (FAIR)
PRINEVILLE    489 (FAIR)
ENTERPRISE    898 (GOOD)
HERMISTON      81 (POOR)
JOHN DAY      502 (FAIR)
LA GRANDE     712 (GOOD)
MADRAS        431 (FAIR)
MEACHAM       516 (FAIR)
PENDLETON     462 (FAIR)
REDMOND       533 (FAIR)
SENECA        357 (FAIR)
THE DALLES    119 (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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