FVXX21 KWBC 311930
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1930 UTC 31 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-637         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.  6 HOUR WIND FORECAST FROM THE 31/1200 
UTC AVIATION MODEL.  GUAYAQUIL METEOROLOGICAL WATCH OFFICE.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS.   
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DETAILS OF ASH: LATEST SATELLITE IMAGERY THROUGH 31/1845 UTC
SHOWS SOME CLEARING OVER THE AREA HOWEVER SCATTERED CLOUDS
STILL MAKE IT DIFFICULT TO DETECT ANY ASH.  THE LAST REPORT OF
ASH CAME AT 31/0949 UTC FROM GEOPHYSICAL INSTITUTE.  AT THAT
TIME ASH WAS TO FL230.

TRAJECTORY: ASH FROM THE SUMMIT TO FL230 WOULD MOVE TOWARDS
THE WEST AT 10-20 KNOTS.
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OUTLOOK: SEE SIGMETS.
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THE NEXT STATEMENT WILL BE ISSUED BY 01/0130 UTC.
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REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER VOLCANIC
ASH ADVISORY STATEMENTS 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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WALTER
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