FVXX20 KNES 081211 VOLCANIC ASH ADVISORY ISSUED: 2005APR08/1211Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/129 INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. ERUPTION DETAILS: CONTINUOUS EMISSIONS OBS ASH DATE/TIME: 08/1125Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING TO W 9-12 KNOTS. FCST ASH CLOUD +6H: NOT AVBL FCST ASH CLOUD +12H: NOT AVBL FCST ASH CLOUD +18H: NOT AVBL REMARKS: IT IS DIFFICULT TO OBSERVE ANY ASH ON IR OR MULTISPECTRAL IMAGERY. A POSSIBLE AREA OF ASH MAY EXTEND E TO W IN AN AREA SOUTH OF THE VOLCANO FROM ABOUT 120 NM WSW TO 40 NM ESE OF THE SUMMIT BUT CONFIDENCE IS LOW THAT THIS IS ASH. THE LAST OBSERVANCE OF A WARM SPOT WAS AT 0802Z. CLOUD MOTION AND MODEL WINDS SUGGEST THAT ANY ASH WOULD BE TO FL100 AND MOVE TO THE W AT 9-12 KTS. ...BALDWIN NEXT ADVISORY: WILL BE ISSUED BY 2005APR08/1815Z NNNN