FVXX20 KNES 051329 VOLCANIC ASH ADVISORY ISSUED: 2005AUG05/1329Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1620E14539 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/635 INFORMATION SOURCE: GFS MODEL WINDS. RADIOSONDE. GOES-9. USGS. ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND GASES OBS ASH DATE/TIME: 05/1302Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL160 MOVING TO NW 15-20 KNOTS. FCST ASH CLOUD +6H: 05/1900Z FCST ASH CLOUD +12H: 06/0100Z FCST ASH CLOUD +18H: 06/0700Z REMARKS: THICK WEATHER CLOUDS CONTINUE TO COVER THE AREA SO ASH CAN NOT BE DETECTED. ACCORDING TO SEISMIC DATA THE ERUPTION IS CONTINUING WITH OCCASIONAL PLUSES. WINDS OVER THE NEXT 12-18 HOURS ARE FORECAST TO BECOME MORE WESTERLY AND DECREASE TO 10-15 KNOTS. ...SWANSON NEXT ADVISORY: WILL BE ISSUED BY 2005AUG05/1930Z NNNN