FVXX21 KWBC 312130
VOLCANIC ASH ADVISORY
ISSUED 2120 UTC 31 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-638    ECUADOR 1.47S 78.44W 
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BACKGROUND:    TUNGURAHUA ECUADOR (1502-08)
               SUMMIT HEIGHT 16480 FT (5023 M)
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SOURCES OF INFORMATION: GEOPHYSICAL INSTITUTE IN QUITO...GOES-8
VISIBLE INFRARED AND MULTISPECTRAL IMAGERY...UPPER AIR WIND FORECAST
FROM THE AVIATION MODEL...SIGMET FROM GUAYAQUIL METEOROLOGICAL WATCH
OFFICE.
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ERUPTION DETAILS: OCCASIONAL GAS AND ASH EMISSIONS WITH SEVERAL
EXPLOSIONS.
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DETAILS OF ASH: THE GEOPHYSICAL INSTITUTE REPORTS THREE EXPLOSIONS
TODAY AND THE MOST RECENT EXPLOSION AT 2017 UTC PRODUCED ASH TO
FL300.  NO ASH CAN BE DETECTED IN SATELLITE IMAGERY THROUGH 31/2015
UTC DUE TO WEATHER CLOUDS COVERING THE AREA.
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TRAJECTORY: UPPER AIR WIND PATTERNS SUGGEST THAT ANY ASH BETWEEN THE
SUMMIT AND FL300 WOULD MOVE TOWARD THE WEST AT 10 TO 20 KNOTS.
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OUTLOOK:  SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 01/0330 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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