Daily Dispersion Outlook
Issued by NWS Pendleton, OR

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7
000
AUUS46 KPDT 271205
DDOPDT

DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
505 AM PDT SAT MAY 27 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 4-7 MPH.         NNE 3-6 MPH.
TRANSPORT WINDS               SE 4-8 MPH.         SE 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN MAY 28        POOR.

VENTILATION INDEX (CATEGORY)  30 (POOR).          336 (FAIR).
OUTLOOK FOR SUN MAY 28        195 (POOR).

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

                              7:00 AM             AFTERNOON
SURFACE WINDS                 W 4-7 MPH.          SE 4-7 MPH.
TRANSPORT WINDS               W 4-8 MPH.          SE 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9000 FT MSL.
DISPERSION CATEGORY           POOR.               POOR.
OUTLOOK FOR SUN MAY 28        POOR.

VENTILATION INDEX (CATEGORY)  25 (POOR).          347 (FAIR).
OUTLOOK FOR SUN MAY 28        99 (POOR).

FOR THE GRANDE RONDE RIVER VALLEY

                              7:00 AM             AFTERNOON
SURFACE WINDS                 SE 3-6 MPH.         SE 3-6 MPH.
TRANSPORT WINDS               SE 4-8 MPH.         SSE 4-8 MPH.
MIXING HEIGHT                 NEAR SURFACE.       9500 FT MSL.
DISPERSION CATEGORY           POOR.               FAIR.
OUTLOOK FOR SUN MAY 28        GOOD.

VENTILATION INDEX (CATEGORY)  27 (POOR).          220 (POOR).
OUTLOOK FOR SUN MAY 28        559 (FAIR).

SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM      344 (FAIR)
ELLENSBURG    474 (FAIR)
GOLDENDALE    266 (POOR)
TRI-CITIES    377 (FAIR)
WALLA WALLA   278 (POOR)
YAKIMA        330 (FAIR)
BEND          219 (POOR)
PRINEVILLE    297 (POOR)
ENTERPRISE    259 (POOR)
HERMISTON     307 (FAIR)
JOHN DAY      233 (POOR)
LA GRANDE     312 (FAIR)
MADRAS        217 (POOR)
MEACHAM       312 (FAIR)
PENDLETON     316 (FAIR)
REDMOND       257 (POOR)
SENECA        219 (POOR)
THE DALLES    357 (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.
$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.