FVXX20 KWBC 052056 VOLCANIC ASH ADVISORY ISSUED: 2004JUN05/2055Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/252 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GEOPHYSICAL INSTITUTE. ERUPTION DETAILS: ERUPTION AT 04/2015Z OBS ASH DATE/TIME: 05/2015Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL230 MOVING TO W 10-15 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: IT CONTINUES TO BE DIFFICULT TO DETECT ASH DUE TO EXTENSIVE CLOUDCOVER OVER THE VOLCANO. THE EVENING GEOPHYSICAL INSTITUTE REPORT STATES CONTINUED MODERATE SEISMIC ACTIVITY WITH ROARING AND EXPLOSIVE SOUNDS AND A BRIEF ABILITY TO SEE A VAPOR COLUMN RISING TO ALMOST FL180 AND MOVING WEST BEFORE CLOUDS OBSCURED THE VIEW. ... NEXT ADVISORY: WILL BE ISSUED BY 2004JUN06/0300Z NNNN