FVXX21 KWBC 022000 
VOLCANIC ASH ADVISORY
ISSUED 2000 UTC 02 SEP 2000 BY THE WASHINGTON VAAC
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TUNGURAHUA 00-1029        ECUADOR 0128S 7826W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GOES-8 VISIBLE INFRARED AND
MULTISPECTRAL IMAGERY. WIND FORECAST FROM THE AVIATION MODEL.
GEOPHYSICAL INSTITITUTE. SIGMETS FROM GUAYAQUIL METEOROLOGICAL
WATCH OFFICE.
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ERUPTION DETAILS: GAS AND ASH EMISSIONS.
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DETAILS OF ASH: NO ASH CAN BE SEEN IN SATELLITE IMAGERY
THROUGH 1915 UTC DUE TO THE INCREASING WEATHER CLOUDS IN THE
AREA.  IMAGERY AT 1245 UTC SHOWED A NARROW ASH PLUME BELOW
FL250 EXTENDING FROM THE SUMMIT TOWARD THE SOUTHWEST.  A
SIGMET REPORTED ASH AT FL220 MOVING TOWARD THE SOUTHWEST AT
1348 UTC AND 1625 UTC.  
  ANOTHER SIGMET CITED AN AIRCRAFT REPORT OF NORTHWARD MOVING
ASH TO FL350 AT 02/1714 UTC BUT THIS CANNOT BE CONFIRMED IN
IMAGERY.  
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH BETWEEN
THE SUMMIT AND FL350 WOULD MOVE TO THE SOUTHWEST AT ABOUT 20
KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT ADVISORY WILL BE ISSUED BY 03/0200 UTC.
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REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN
ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT
INTERNET URL ADDRESS
HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML
(ALL LOWER CASE EXCEPT /VAAC/)
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PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS.
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