797
AUUS46 KPDT 201328
DDOPDT
DAILY DISPERSION OUTLOOK
NATIONAL WEATHER SERVICE PENDLETON OR
528 AM PST WED NOV 20 2024
*** AIR DISPERSION CATEGORIES: GOOD, FAIR, POOR ***
FOR THE COLUMBIA BASIN FROM PENDLETON TO WALLA WALLA AND PASCO
7:00 AM AFTERNOON
SURFACE WINDS SE 20-41 MPH. S 13-23 MPH.
TRANSPORT WINDS S 21-37 MPH. S 11-20 MPH.
MIXING HEIGHT NEAR SURFACE. 2000 FT MSL.
DISPERSION CATEGORY GOOD. FAIR.
OUTLOOK FOR THU NOV 21 POOR.
OUTLOOK FOR FRI NOV 22 FAIR.
VENTILATION INDEX (CATEGORY) 135 (POOR). 180 (POOR).
OUTLOOK FOR THU NOV 21 53 (POOR).
OUTLOOK FOR FRI NOV 22 136 (POOR).
FOR THE UPPER YAKIMA VALLEY INCLUDING YAKIMA...UNION GAP...
SELAH...AND NACHES AREA
7:00 AM AFTERNOON
SURFACE WINDS SE 6-15 MPH. S 4-8 MPH.
TRANSPORT WINDS SE 9-17 MPH. S 6-10 MPH.
MIXING HEIGHT NEAR SURFACE. 2000 FT MSL.
DISPERSION CATEGORY FAIR. POOR.
OUTLOOK FOR THU NOV 21 POOR.
OUTLOOK FOR FRI NOV 22 POOR.
VENTILATION INDEX (CATEGORY) 57 (POOR). 103 (POOR).
OUTLOOK FOR THU NOV 21 49 (POOR).
OUTLOOK FOR FRI NOV 22 61 (POOR).
FOR THE GRANDE RONDE RIVER VALLEY
7:00 AM AFTERNOON
SURFACE WINDS S 26-37 MPH. S 27-34 MPH.
TRANSPORT WINDS S 27-35 MPH. S 25-32 MPH.
MIXING HEIGHT 4000 FT MSL. 5000 FT MSL.
DISPERSION CATEGORY FAIR. GOOD.
OUTLOOK FOR THU NOV 21 GOOD.
OUTLOOK FOR FRI NOV 22 GOOD.
VENTILATION INDEX (CATEGORY) 385 (FAIR). 575 (FAIR).
OUTLOOK FOR THU NOV 21 353 (FAIR).
OUTLOOK FOR FRI NOV 22 457 (FAIR).
FOR THE BASE OF THE NORTHERN BLUE MOUNTAINS
7:00 AM AFTERNOON
SURFACE WINDS SE 27-42 MPH. S 19-27 MPH.
TRANSPORT WINDS S 31-40 MPH. S 17-27 MPH.
MIXING HEIGHT NEAR SURFACE. 2500 FT MSL.
DISPERSION CATEGORY GOOD. GOOD.
OUTLOOK FOR THU NOV 21 POOR.
OUTLOOK FOR FRI NOV 22 GOOD.
VENTILATION INDEX (CATEGORY) 225 (POOR). 294 (POOR).
OUTLOOK FOR THU NOV 21 94 (POOR).
OUTLOOK FOR FRI NOV 22 206 (POOR).
SELECT AFTERNOON FORECAST VENTILATION INDICES FOR SOME CITIES
CLE ELUM 223 (POOR)
ELLENSBURG 152 (POOR)
GOLDENDALE 82 (POOR)
TRI-CITIES 94 (POOR)
WALLA WALLA 324 (FAIR)
YAKIMA 101 (POOR)
BEND 587 (FAIR)
PRINEVILLE 871 (GOOD)
ENTERPRISE 363 (FAIR)
HERMISTON 93 (POOR)
JOHN DAY 411 (FAIR)
LA GRANDE 562 (FAIR)
MADRAS 563 (FAIR)
MEACHAM 212 (POOR)
PENDLETON 233 (POOR)
REDMOND 756 (GOOD)
SENECA 441 (FAIR)
THE DALLES 91 (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/GFORECAST/GINDEX.PHP?FCST=MIXHGT,VENTCAT,TRANSWIND,VENTINDX&VT=0,72
IF YOU WOULD LIKE TO KNOW MORE ABOUT THIS PRODUCT...CONTACT THE
NATIONAL WEATHER SERVICE IN PENDLETON.
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