FVXX20 KNES 110125
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY11/0124Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/266

INFORMATION SOURCE: GFS MODEL WINDS. RADIOSONDE.
GOES-9. 

ERUPTION DETAILS: CONTINUOUS ASH AND STEAM
EMISSION. 

OBS ASH DATE/TIME: 11/0002Z

OBS ASH CLOUD: SFC/FL120 N1958E14230 - N1958E14458
- N1616E14543 - N1455E13844 - N1606E13801 -
N1958E14230 MOVING W 15-20 KNOTS. 

FCST ASH CLOUD +6H: 11/0600Z SFC/120 N2000E14458 -
N1615E14544 - N1426E13622 - N1621E13640 -
N1958E14229 - N2000E14458 

FCST ASH CLOUD +12H: 11/1200Z SFC/FL120
N1855E14051 - N1740E14203 - N1456E13659 -
N1558E13528 - N1855E14051 SFC/FL120 N1647E14521 -
N1614E14541 - N1511E14230 - N1634E14206 -
N1647E14521 

FCST ASH CLOUD +18H: 11/1800Z SFC/FL120
N1711E14002 - N1707E14504 - N1612E14541 -
N1540E14106 - N1711E14002 

REMARKS: IN IMAGERY THE EMISSION HAS DIMINISHED A
LITTLE HOWEVER THERE IS STILL A LARGE AREA OF ASH
DETECTED IN MULTISPECTAL IMAGERY.  THE WESTERN
EDGE IS MOVING WEST AS IS THE CURRENT EMISSION
FROM THE VOLCANO. THE AREA TO THE NORTH OF 18N IS
BASICLY STATIONARY AND SLOWING DISSIPATING.  
...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY11/0730Z

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