FVXX20 KNES 311029
VOLCANIC ASH ADVISORY
ISSUED: 2005MAR31/1028Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/099

INFORMATION SOURCE: RADIOSONDE. GOES-9. 

ERUPTION DETAILS: CONTINUOUS LOW LEVEL PLUME

OBS ASH DATE/TIME: 31/1013Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE
DATA. WINDS SFC/FL100 MOVING TO W 15-20 KNOTS.

FCST ASH CLOUD +6H: 31/1613Z SFC/FL100 15NM WIDE
LINE BETWEEN N1640E14427 - N1620E14540. 

FCST ASH CLOUD +12H: 31/2213Z SFC/FL100 15NM WIDE
LINE BETWEEN N1631E14414 - N1620E14540. 

FCST ASH CLOUD +18H: 01/0413Z SFC/FL100 15NM WIDE
LINE BETWEEN N1623E14413 - N1620E14540. 

REMARKS: IN THE LAST VISIBLE IMAGERY IT COULD BE
SEEN THAT THE STEAM AND LIGHT ASH PLUME DIRECTION
WAS BECOMING MORE WESTERLY.  AT 1013Z SOME CLOUDS
HAD MOVED OVER THE AREA OBSCURING THE PLUME AND
HOTSPOT.  ...

NEXT ADVISORY: WILL BE ISSUED BY 2005MAR31/1630Z

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