FVXX21 KWBC 291830 VOLCANIC ASH ADVISORY STATEMENT ISSUED 1830 UTC 29 FEB 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-255 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. 29/1800 UTC AVN MODEL WINDS. . ERUPTION DETAILS: COUPLE MODERATE EXPLOSIONS TODAY. . DETAILS OF ASH: SATELLITE IMAGERY THRU 29/1745 SHOWS BROKEN TO SOLID CLOUDS OVER TUNGURAHUA MAKING ASH DETECTION IMPOSSIBLE AT THIS TIME. THE GEOPHYSICAL INSTITUTE IN QUITO REPORTS THAT HEAVY RAIN HAS BEEN FALLING OVER THE VOLCANO ALL DAY LONG. THEY DID REPORT A COUPLE OF MODERATE EXPLOSIONS BUT NO ASH COULD BE SEEN FROM THE GROUND OBSERVERS DUE TO THE ADVERSE WEATHER CONDITIONS. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH UP TO FL300 WOULD MOVE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 01/0030 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-NOAA/NESDIS/SAB . NNNN