FVXX20 KNES 160214
VOLCANIC ASH ADVISORY
ISSUED: 2005APR16/0214Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/163

INFORMATION SOURCE: RADIOSONDE. GOES-9. 

ERUPTION DETAILS: CONTINUOUS EMISSION

OBS ASH DATE/TIME: 16/0025Z

OBS ASH CLOUD: SFC/200 10NM WIDE LINE BETWEEN
N1632E14523 - N1621E14541. ASH IS MOVING NW 25
KNOTS. SFC/100 N1628E14455 - N1621E14540 -
N1608E14525 - N1537E14410 - N1628E14455 MOVING W
15-20 KNOTS. 

FCST ASH CLOUD +6H: 16/0630Z SFC/200 20NM WIDE
LINE BETWEEN N1721E14414 - N1620E14541. SFC/100
N1653E14400 - N1620E14540 - N1549E14505 -
N1512E14330 - N1653E14400 

FCST ASH CLOUD +12H: 16/1230Z SFC/200 25NM WIDE
LINE BETWEEN N1817E14258 - N1620E14541. SFC/FL100
N1713E14302 - N1621E14540 - N1449E14310 -
N1713E14302 

FCST ASH CLOUD +18H: 16/1830 SFC/200 25NM WIDE
LINE BETWEEN N1901E14156 - N1805E14314 -
N1619E14540. SFC/100 N1725E14301 - N1619E14540 -
N1443E14310 - N1725E14301 

REMARKS: THE EMISSION HAS INCREASED IN  HEIGHT
WITH A PLUME NOW ALSO MOVING TO THE NORTHWEST AT A
HEIGHT ESTIMATED TO AROUND FL200.  THE HOTSPOT AT
THE VOLCANO ALSO INCREASED IN INTENSITY WHICH MOST
LIKELY RAISED THE HEIGHT OF THE STEAM AND ASH
CLOUD.  ...

NEXT ADVISORY: WILL BE ISSUED BY 2005APR16/0815Z

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