FVXX20 KNES 052104
VOLCANIC ASH ADVISORY
ISSUED: 2005JUN05/2103Z VAAC: WASHINGTON
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540 AREA: MARIANA.ISLANDS
SUMMIT ELEVATION: 2585 FT (788 M)
ADVISORY NUMBER: 2005/370
INFORMATION SOURCE: GFS MODEL WINDS. GOES-9.
ERUPTION DETAILS: CONTIINOUS EMISSION OF ASH AND
GASES
OBS ASH DATE/TIME: 05/2002Z
OBS ASH CLOUD: SFC/FL080 50NM WIDE LINE BETWEEN
N1930E14433 - N1621E14544. ASH IS MOVING NW 10
KNOTS. SFC/FL120 30NM WIDE LINE BETWEEN
N1616E14452 - N1416E14430. ASH IS MOVING W 5
KNOTS. SFC/FL260 10NM WIDE LINE BETWEEN
N1713E14611 - N1617E14543. ASH IS MOVING NE 10
KNOTS.
FCST ASH CLOUD +6H: 06/0200Z SFC/FL080 60NM WIDE
LINE BETWEEN N2110E14333 - N1908E14344 -
N1619E14545. SFC/FL120 NO ASH EXP. SFC/FL260 NO
ASH EXP.
FCST ASH CLOUD +12H: 06/0800Z SFC/FL080 40NM WIDE
LINE BETWEEN N2202E14432 - N2031E14434 -
N1843E14432 - N1615E14543.
FCST ASH CLOUD +18H: 06/1400Z SFC/FL080 40NM WIDE
LINE BETWEEN N1934E14442 - N1615E14545.
REMARKS: THE DOMINATE EMISSION CONTINUES TO BE A
PLUME MOVING NORTHWEST FROM THE VOLCANO AND EXTEND
OUT ROUGHLY 215 NM. THE PREVIOUS HIGHER LEVEL
EMISSION HAS BECOME FAINTER AND IS ONLY PARTIALLY
SEEN DUE TO A BAND OF CLOUDS RUNNING NORTHEAST TO
SOUTHEAST FROM THE ISLAND. ALSO THE AREA OF OLD
ASH AND GASES AT FL120 SOUTHWEST OF THE ISLAND IS
ALSO BECOMING FAINT. BOTH OF THESE AREAS WILL
DISSIPATE OVER THE NEXT 6 HOURS. ...SWANSON
NEXT ADVISORY: WILL BE ISSUED BY 2005JUN06/0300Z
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