FVXX20 KNES 140940
VOLCANIC ASH ADVISORY
ISSUED: 2005JUL14/0940Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/541

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: ONGOING ASH EMISSIONS

OBS ASH DATE/TIME: 14/0902Z

OBS ASH CLOUD: SFC/FL170 15NM WIDE LINE BETWEEN
N1722E14551 - N1620E14540. ASH IS MOVING N 13-17
KNOTS. 

FCST ASH CLOUD +6H: 14/1500Z SFC/FL170 20NM WIDE
LINE BETWEEN N1859E14529 - N1725E14540 -
N1622E14540. 

FCST ASH CLOUD +12H: 14/2100Z SFC/FL170 20NM WIDE
LINE BETWEEN N1900E14521 - N1726E14535 -
N1620E14540. 

FCST ASH CLOUD +18H: 15/0300Z SFC/FL170 20NM WIDE
LINE BETWEEN N1858E14448 - N1654E14519 -
N1620E14540. 

REMARKS: AS NIGHT FELL OVER THE MARIANA
ISLANDS...THE CIRRUS OUTFLOW FROM HAITANG MOVED
OFF TO THE WEST ENOUGH TO SHOW A NARROW PLUME
EXTENDING NNE FROM SUMMIT TO THE ISLAND OF GUGUAN.
WIND PROFILES SUGGEST THAT THE MAXIMUM HEIGHT IS
BELOW FL170... FORECAST IS FOR WEAKENING FLOW AND
A SLIGHT BACKING FROM DUE S TO SE MAKING ASH MOVE
N TO NW. ...GALLINA

NEXT ADVISORY: WILL BE ISSUED BY 2005JUL14/1545Z

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