FVXX20 KNES 311625 VOLCANIC ASH ADVISORY ISSUED: 2005JUL31/1625Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/613 INFORMATION SOURCE: GOES-12. GFS MODEL WINDS. ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS OBS ASH DATE/TIME: 31/1613Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING TO NE 10-15 KNOTS. FL100/FL150 MOVING TO N 5-10 KNOTS. FCST ASH CLOUD +6H: 31/2200Z FCST ASH CLOUD +12H: 01/0400Z FCST ASH CLOUD +18H: 01/1000Z REMARKS: ASH IS NOT VISIBLE IN MULTISPECTRAL IMAGERY DUE TO EXTENSIVE CLOUD COVER. ... NEXT ADVISORY: WILL BE ISSUED BY 2005JUL31/2230Z NNNN