FVXX20 KNES 301645 VOLCANIC ASH ADVISORY ISSUED: 2005JUL30/1637Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/609 INFORMATION SOURCE: GFS MODEL WINDS. PILOT REPORT. GOES-9. ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS OBS ASH DATE/TIME: 30/1525Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL340 MOVING TO NW 5-20 KNOTS. FCST ASH CLOUD +6H: 30/2130Z FCST ASH CLOUD +12H: 31/0330Z FCST ASH CLOUD +18H: 31/0930Z REMARKS: CLOUD COVER CONTINUES TO HAMPER ASH DETECTION. THE MOST RECENT KNOWN ASH OBSERVATION WAS BY A PILOT AT 30/0920Z WHO NOTED ASH TO FL340 MOVING NORTHWEST. ... NEXT ADVISORY: WILL BE ISSUED BY 2005JUL30/2230Z NNNN