FVXX23 KNES 191634 VOLCANIC ASH ADVISORY ISSUED: 2006MAR19/1634Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621 E14539 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2006/004 INFORMATION SOURCE: MTSAT. RADIOSONDE. ERUPTION DETAILS: UNKNOWN OBS ASH DATE/TIME: 19/1600Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL070 MOVING TO SW 5-10 KNOTS. FCST ASH CLOUD +6H: 19/2200Z FCST ASH CLOUD +12H: 20/0400Z FCST ASH CLOUD +18H: 20/1000Z REMARKS: DUE TO THE LOW LEVEL OF THE PLUME IT CAN NOT BE DETECTED IN IMAGERY. IT MAY NOT CONTAIN ANY ASH. THE VOLCANO HAS BEEN REPORTEDLY DEGASING FOR OVER A WEEK. WE WILL CONTINUE TO INVESTIGATE. ...SWANSON NEXT ADVISORY: WILL BE ISSUED BY 2006MAR19/2230Z NNNN