FVXX21 KWBC 221630 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1630 UTC 22 MAY 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-600 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY. THE GEOPHYSICAL INSTITUTE IN QUITO. 22/1800 UTC FORECAST UPPER WINDS FROM THE 22/0600 UTC AVIATION MODEL. . ERUPTION DETAILS: NEARLY CONTINUOUS GAS AND ASH EMISSIONS. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 1615 UTC DOES NOT SHOW ANY ASH DUE TO LOW AND MID LEVEL CLOUDS OBSCURING THE VIEW AROUND THE VOLCANO. THE GEOPHYSICAL INSTITUTE REPORTS THAT ASH WAS OBSERVED OVER THE VOLCANO AT 1425 UTC TO A HEIGHT OF FL230 AND MOVING NORTHWEST. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH TO FL230 WOULD MOVE WEST AT 10 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 22/2230 UTC. . 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/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . HUGHES . NNNN