FVXX20 KNES 211840
VOLCANIC ASH ADVISORY
ISSUED: 2005APR21/1840Z VAAC: WASHINGTON
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540 AREA: MARIANA.ISLANDS
SUMMIT ELEVATION: 2585 FT (788 M)
ADVISORY NUMBER: 2005/186
INFORMATION SOURCE: GOES-12. GFS MODEL WINDS.
RADIOSONDE.
ERUPTION DETAILS: CONTINOUS ASH AND STEAM
EMISSIONS
OBS ASH DATE/TIME: 21/1825Z
OBS ASH CLOUD: SFC/FL100 20NM WIDE LINE BETWEEN
N1712E14259 - N1623E14536. ASH IS MOVING W 25
KNOTS.
FCST ASH CLOUD +6H: 22/0000Z SFC/FL100 20NM WIDE
LINE BETWEEN N1756E14259 - N1623E14537.
FCST ASH CLOUD +12H: 22/0600Z SFC/FL100 20NM WIDE
LINE BETWEEN N1756E14300 - N1623E14537.
FCST ASH CLOUD +18H: 22/1200Z SFC/FL100 20NM WIDE
LINE BETWEEN N1756E14300 - N1623E14537.
REMARKS: MULTISPECTAL IMAGERY SHOWS A FAINT PLUME
EXTENDING APPROXIMAGELY 150 NMI WEST NORTHWEST OF
THE SUMMIT ...SCHWARTZ
NEXT ADVISORY: WILL BE ISSUED BY 2005APR22/0045Z
NNNN
Full Size Graphic
-