FVXX20 KNES 280257
VOLCANIC ASH ADVISORY
ISSUED: 2005AUG28/0257Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/730

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS

OBS ASH DATE/TIME: 28/0202Z

OBS ASH CLOUD: SFC/FL120 20NM WIDE LINE BETWEEN
N1756E14638 - N1619E14541. ASH IS MOVING NE 15-30
KNOTS. 

FCST ASH CLOUD +6H: 28/0800Z SFC/FL120 20NM WIDE
LINE BETWEEN N1802E14627 - N1712E14608 -
N1619E14540. 

FCST ASH CLOUD +12H: 28/1400Z SFC/FL120 20NM WIDE
LINE BETWEEN N1802E14623 - N1617E14540. 

FCST ASH CLOUD +18H: 28/2000Z SFC/FL120 20NM WIDE
LINE BETWEEN N1742E14641 - N1716E14612 -
N1619E14539. 

REMARKS: A FAINT TO MODERATE ASH PLUME EXTENDS
FROM THE VOLCANO TOWARD THE NORTH NORTHEAST.  THE
PLUME MIGHT EXTEND FARTHER THAN INDICATED BECAUSE
CLOUDS ARE HINDERING ASH DETECTION.   THERE IS
SUBSTANTIAL UNCERTAINTY IN THE 18 HOUR ASH
FORECAST. ...

NEXT ADVISORY: WILL BE ISSUED BY 2005AUG28/0900Z

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