FVXX21 KWBC 171915
VOLCANIC ASH ADVISORY STATEMENT 
ISSUED 1915 UTC 17 MAY 2000 BY THE WASHINGTON VAAC 
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TUNGURAHUA 00-580         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. 
GUAYAQUIL METEOROLOGICAL WATCH OFFICE SIGMET.
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ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND OCCASIONAL ASH
EMISSIONS.   
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DETAILS OF ASH: THE GUAYAQUIL MWO INDICATES THAT VOLCANIC ASH
IS REPORTED BY THE GEOPHYSICAL INSTITUTE TO AROUND FL250 AND
MOVING WEST. NO ASH CAN BE DETECTED IN SATELLITE IMAGERY
THROUGH 17/1815 UTC DUE TO THE EXTENSIVE WEATHER CLOUDS IN THE
AREA. 
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TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT ANY ASH AROUND
FL250 WOULD MOVE TOWARD THE WEST AROUND 20 KNOTS. 
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OUTLOOK: SEE SIGMETS AND VAFTAD.
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THE NEXT STATEMENT WILL BE ISSUED BY 18/0100 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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