FVXX20 KNES 212347
VOLCANIC ASH ADVISORY
ISSUED: 2005APR21/2347Z   VAAC: WASHINGTON

VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540   AREA: MARIANA.ISLANDS

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/187

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS LOW LEVEL EMISSIONS

OBS ASH DATE/TIME: 21/2249Z

OBS ASH CLOUD: SFC/FL100 10NM WIDE LINE BETWEEN
N1620E14459 - N1622E14537. ASH IS MOVING W 15
KNOTS. 

FCST ASH CLOUD +6H: 22/0600Z SFC/FL100 10NM WIDE
LINE BETWEEN N1619E14450 - N1622E14537. 

FCST ASH CLOUD +12H: 22/1200Z SFC/FL100 10NM WIDE
LINE BETWEEN N1620E14443 - N1622E14537. 

FCST ASH CLOUD +18H: NOT AVBL

REMARKS: VISIBLE IMAGERY SHOWS A NARROW PLUME OF
ASH AND STEAM EXTENDING TO THE WEST OF THE VOLCANO
MOVING AT 15 KTS ...KARST

NEXT ADVISORY: WILL BE ISSUED BY 2005APR22/0545Z

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