FVXX20 KNES 091752
VOLCANIC ASH ADVISORY
ISSUED: 2005APR09/1752Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/135

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

ERUPTION DETAILS: ONGOING LOW LEVEL ERUPTION 

OBS ASH DATE/TIME: 09/1649Z

OBS ASH CLOUD: SFC/FL110 N1634E14359 - N1623E14540
- N1557E14527 - N1507E14353 - N1458E14230 -
N1559E14259 - N1634E14359 MOVING W 10 KNOTS. 

FCST ASH CLOUD +6H: 09/2300Z SFC/SF110 N1655E14214
- N1624E14540 - N1538E14440 - N1458E14158 -
N1655E14214 

FCST ASH CLOUD +12H: 10/0500Z SFC/FL110
N1701E14158 - N1624E14540 - N1601E14531 -
N1511E14136 - N1701E14158 

FCST ASH CLOUD +18H: S10/1100Z FC/FL110
N1717E14058 - N1625E14541 - N1552E14528 -
N1458E14059 - N1717E14058 

REMARKS: THERE IS STILL A PLUME OF ASH AND GASES
EXTENDING NOW MORE WESTERLY OFF THE ISLAND. BASED
ON THE DIRECTION AND SPEED THE HEIGHT IS STILL
ESTIMATED BELOW FL110.  THE THICKEST PART OF THE
PLUME EXTENDES AROUND 80 NM DOWNWINDS AND BECOMES
FAINTER WITH DISTANCE.  THE HOTSPOT HAS ALSO
DISIPATED.  ...

NEXT ADVISORY: WILL BE ISSUED BY 2005APR09/2345Z

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