FVXX20 KNES 181439 VOLCANIC ASH ADVISORY ISSUED: 2005JUL18/1439Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1620E14540 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/558 INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. ERUPTION DETAILS: OBS ASH DATE/TIME: 18/1402Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL220 MOVING TO W 5-10 KNOTS. FCST ASH CLOUD +6H: 18/2000Z WINDS SFC/FL220 MOVING TO W 0-10 KNOTS. FCST ASH CLOUD +12H: 19/0200Z WINDS SFC/FL080 MOVING TO W 5-10 KNOTS. FL080/FL220 MOVING TO SW 5-10 KNOTS. FCST ASH CLOUD +18H: 19/0800Z REMARKS: THUNDERSTORMS AND GENERAL CLOUDINESS ARE OBSCURING THE AREA. WINDS ARE LIGHT AND VARIABLE THROUGHOUT THE FORECAST AND ASH WILL BE MOSTLY AFFECTED BY STORM-SCALE WINDS. ...GALLINA NEXT ADVISORY: WILL BE ISSUED BY 2005JUL18/2045Z NNNN