FVXX20 KNES 061908 VOLCANIC ASH ADVISORY ISSUED: 2005AUG06/1908Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA.ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2005/640 INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. ERUPTION DETAILS: CONTINUOUS EMISSIONS CONTAINING ASH OBS ASH DATE/TIME: 06/1825Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL080 MOVING TO W 10-15 KNOTS. FL100/FL180 MOVING TO SW 5-15 KNOTS. FCST ASH CLOUD +6H: 07/0030Z FCST ASH CLOUD +12H: 07/0630Z FCST ASH CLOUD +18H: 07/1230Z REMARKS: EXTENSIVE WEATHER CLOUDS COVER THE AREA PREVENTING ASH DETECTION. ABOUT 10 HOURS AGO A PLUME OF FAIRLY THICK ASH COULD EASILY BE SEEN EXTENDING FROM THE VOLCANO TOWARDS THE WEST. UPPER AIR PATTERNS SUGGEST THAT ANY CURRENT ASH PLUME WOULD ALSO EXTEND TO THE WEST. ANY ASH TO FL180 IS EXPECTED TO CONTINUE TO MOVE TOWARD THE WEST OR WEST NORTHWEST OR WEST SOUTHWEST THROUGHOUT THE NEXT 18 HOURS. ... NEXT ADVISORY: WILL BE ISSUED BY 2005AUG07/0115Z NNNN