FVXX20 KNES 131039
VOLCANIC ASH ADVISORY
ISSUED: 2005AUG13/1038Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/669

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


ERUPTION DETAILS: CONTINOUS EMISSION OF ASH AND
GASES

OBS ASH DATE/TIME: 13/0925Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE
DATA. WINDS SFC/FL050 MOVING TO W 5-10 KNOTS.
FL080/FL200 MOVING TO NW -N 10-15 KNOTS.

FCST ASH CLOUD +6H: 13/1530Z 

FCST ASH CLOUD +12H: 13/2130Z 

FCST ASH CLOUD +18H: 14/0330Z 

REMARKS: CLOUDS AND DARKNESS ARE INHIBITING
DETECTING OF ANY ASH THAT WAS PREVIOUSLY NOTED
BELOW FL200.  USGS REPORTS CONTINUED SEISMIC
ACTIVITY WITH ASH EMISSION.  THE FORECASTED WINDS
ABOVE FL050 ARE FORECAST TO GO FROM MOVING TO THE
NORTHWEST TO MOVING TO THE EAST AROUND 13/2100Z AS
AN UPPER LOW MOVES NORTH OF THE AREA.  ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005AUG13/1645Z

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