FVXX20 KNES 310927
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY31/0926Z VAAC: WASHINGTON
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540 AREA: MARIANA.ISLANDS
SUMMIT ELEVATION: 2585 FT (788 M)
ADVISORY NUMBER: 2005/347
INFORMATION SOURCE: GFS MODEL WINDS. GOES-9.
ERUPTION DETAILS: CONTINUOUS EMMISSION OF ASH AND
GASES.
OBS ASH DATE/TIME: 31/0825Z
OBS ASH CLOUD: SFC/FL100 20NM WIDE LINE BETWEEN
N1641E14328 - N1619E14543. ASH IS MOVING W 10-15
KNOTS.
FCST ASH CLOUD +6H: 31/1430Z SFC/FL100 30NM WIDE
LINE BETWEEN N1634E14304 - N1619E14544.
FCST ASH CLOUD +12H: 31/2030Z SFC/FL100 30NM WIDE
LINE BETWEEN N1635E14317 - N1619E14544.
FCST ASH CLOUD +18H: 01/0230Z SFC/FL100 30NM WIDE
LINE BETWEEN N1659E14235 - N1619E14544.
REMARKS: BROKEN HIGHER LEVEL CLOUDS FROM A
TROPICAL SYSTEM SOUTH OF GUAM MAKES DETECTION OF
THE PLUME DIFFICULT. THROUGH BREAKS IN THE CLOUDS
THE PLUME CAN BE SEEN EXTENDING WEST FROM THE
ISLAND AROUND 120 NM. ...SWANSON
NEXT ADVISORY: WILL BE ISSUED BY 2005MAY31/1530Z
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