FVXX20 KNES 121839
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY12/1839Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/273

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS

OBS ASH DATE/TIME: 12/1802Z

OBS ASH CLOUD: SFC/FL80 8NM WIDE LINE BETWEEN
N1656E14449 - N1622E14538. ASH IS MOVING NW 15-20
KNOTS. 

FCST ASH CLOUD +6H: 13/0000Z  SFC/FL80 8NM WIDE
LINE BETWEEN N1709E14455 - N1623E14539. 

FCST ASH CLOUD +12H: 13/0600Z  SFC/FL80 8NM WIDE
LINE BETWEEN N1719E14520 - N1623E14539. 

FCST ASH CLOUD +18H: 13/1200Z  SFC/FL80 8NM WIDE
LINE BETWEEN N1719E14525 - N1625E14539. 

REMARKS: LATEST MULTISPECTRAL IMAGERY SHOWS
PREVIOUS AREA OF THIN ASH TO THE SW AND W OF THE
VOLCANO HAS MOSTLY DISSIPATED AND COVERAGE CAN NOT
BE DEFINED.  CONTINUOUS PLUME OF ASH EXTENDS ABOUT
80 NMI TO THE W OR NW FROM THE SUMMIT.  LOW LEVEL
WINDS BELOW FL80 APPEAR TO TURN MORE NORTHWESTERLY
IN TIME. ...BALDWIN

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY13/0045Z

NNNN
Full Size Graphic


-