FVXX20 KNES 211154
VOLCANIC ASH ADVISORY
ISSUED: 2005JUN21/1154Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/439

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND
GASES

OBS ASH DATE/TIME: 21/1125Z

OBS ASH CLOUD: SFC/FL100 5NM WIDE LINE BETWEEN
N1634E14450 - N1624E14539. ASH IS MOVING W 20
KNOTS. 

FCST ASH CLOUD +6H: 21/1800Z  SFC/FL100 5NM WIDE
LINE BETWEEN N1631E14451 - N1619E14538. 

FCST ASH CLOUD +12H: 22/0000Z  SFC/FL100 5NM WIDE
LINE BETWEEN N1622E14452 - N1618E14536. 

FCST ASH CLOUD +18H: 22/0600Z  SFC/FL100 5NM WIDE
LINE BETWEEN N1619E14448 - N1618E14536. 

REMARKS: CLOUDS ASSOCIATED WITH UPPER LEVEL LOW TO
THE WEST OF THE ISLANDS SHROUD THE FURTHEST WEST
EXTENT OF THE PLUME BUT LATEST IMAGERY SHOWS A
NARROW PLUME EXTENDING ABOUT 70-75 NMI TO THE WEST
OF THE SUMMIT. ...BALDWIN

NEXT ADVISORY: WILL BE ISSUED BY 2005JUN21/1800Z

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