FVXX20 KNES 181841
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY18/1841Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/296

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND
STEAM

OBS ASH DATE/TIME: 18/1802Z

OBS ASH CLOUD: SFC/FL100 15NM WIDE LINE BETWEEN
N1631E14535 - N1603E14611. ASH IS MOVING SE 15-20
KNOTS. 

FCST ASH CLOUD +6H: 19/0000Z  SFC/FL100 15NM WIDE
LINE BETWEEN N1629E14538 - N1541E14604. 

FCST ASH CLOUD +12H: 19/0600Z  SFC/FL100 15NM WIDE
LINE BETWEEN N1625E14537 - N1542E14619. 

FCST ASH CLOUD +18H: 19/1200Z  SFC/FL100 15NM WIDE
LINE BETWEEN N1620E14540 - N1547E14632. 

REMARKS: MULTISPECTRAL IMAGERY SHOWS POSSIBLE
PLUME EXTENDING APPROXIMATELY 50 NMI TO THE SE OF
THE VOLCANO.  VISIBLE IMAGERY LATER TODAY SHOULD
CONFIRM THE EXACT AREA OF COVERAGE.  MODEL WINDS
SUGGESTS ASH TO FL100 AND OBSERVATION SHOWS 15-20
KTS. ...BALDWIN

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY19/0045Z

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