FVXX20 KNES 041325
VOLCANIC ASH ADVISORY
ISSUED: 2005AUG04/1325Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/631

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

ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND
GASES

OBS ASH DATE/TIME: 04/1225Z

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

FCST ASH CLOUD +6H: 04/1830Z 

FCST ASH CLOUD +12H: 05/0030Z 

FCST ASH CLOUD +18H: 05/0630Z 

REMARKS: DUE TO MULTIPLE LAYERS OF CLOUDS NO ASH
CAN BE DETECTED IN IMAGERY.  THE FORECAST WINDS
SHOW ANY LOWER LEVEL ASH WILL MOVE MORE
NORTHWESTERLY AND INCREASE SLIGHTLY IN SPEED OVER
THE NEXT 12 HOURS.  ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005AUG04/1930Z

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