Daily Dispersion Outlook
Issued by NWS Pendleton, OR

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000
AUUS46 KPDT 021100
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
400 AM PDT THU JUL 2 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 3-7 MPH.         NW-NE 4-9 MPH.
TRANSPORT WINDS               SE 3-7 MPH.         SW 17-23 MPH.
MIXING HEIGHT                 NEAR SURFACE.       10500 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI JUL 3         FAIR.

VENTILATION INDEX (CATEGORY)  54 (POOR).          275 (POOR).
OUTLOOK FOR FRI JUL 3         529 (FAIR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 NW 5-10 MPH.        E 5-10 MPH.
TRANSPORT WINDS               NW 5-10 MPH.        SW 15-20 MPH.
MIXING HEIGHT                 NEAR SURFACE.       11000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI JUL 3         GOOD.

VENTILATION INDEX (CATEGORY)  71 (POOR).          350 (FAIR).
OUTLOOK FOR FRI JUL 3         445 (FAIR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 2-6 MPH.         N 5-10 MPH.
TRANSPORT WINDS               SE 2-6 MPH.         SW 20-25 MPH.
MIXING HEIGHT                 NEAR SURFACE.       12000 FT MSL.
DISPERSION CATEGORY           POOR.               GOOD.
OUTLOOK FOR FRI JUL 3         GOOD.

VENTILATION INDEX (CATEGORY)  25 (POOR).          398 (FAIR).
OUTLOOK FOR FRI JUL 3         360 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      334 (FAIR)
ELLENSBURG    573 (FAIR)
GOLDENDALE    422 (FAIR)
TRI-CITIES    272 (POOR)
WALLA WALLA   258 (POOR)
YAKIMA        370 (FAIR)
BEND          204 (POOR)
PRINEVILLE    359 (FAIR)
ENTERPRISE    616 (GOOD)
HERMISTON     238 (POOR)
JOHN DAY      381 (FAIR)
LA GRANDE     420 (FAIR)
MADRAS        253 (POOR)
MEACHAM       395 (FAIR)
PENDLETON     278 (POOR)
REDMOND       311 (FAIR)
SENECA        208 (POOR)
THE DALLES    416 (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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