FVXX20 KNES 051923 VOLCANIC ASH ADVISORY ISSUED: 2005AUG05/1923Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/636 INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND GASES OBS ASH DATE/TIME: 05/1825Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL180 MOVING TO NW 15 KNOTS. FCST ASH CLOUD +6H: 06/0030Z FCST ASH CLOUD +12H: 06/0630Z FCST ASH CLOUD +18H: 06/1230Z REMARKS: THERE ARE STILL CLOUDS OVER THE AREA HOWEVER THERE IS A HINT OF A SHORT 25 NMI LONG PLUME BENEATH THE CLOUDS MOVING TO THE NORTHWEST OFF THE ISLAND BEFORE THE CLOUDS BECOME THICKER. THE WINDS FORECAST INDICATES THE PLUME WILL BECOME MORE WESTERLY IN 12 HOURS. ...SWANSON NEXT ADVISORY: WILL BE ISSUED BY 2005AUG06/0130Z NNNN