FVXX20 KNES 182229
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY18/2229Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/297

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

ERUPTION DETAILS: CONTINOUS ASH AND STEAM
EMISSIONS

OBS ASH DATE/TIME: 18/2213Z

OBS ASH CLOUD: SFC/100 15NM WIDE LINE BETWEEN
N1620E14541 - N1544E14628. ASH IS MOVING SE 15-20
KNOTS. SFC/020 10NM WIDE LINE BETWEEN N1708E14519
- N1623E14539. ASH IS MOVING NW 10-15 KNOTS. 

FCST ASH CLOUD +6H: 19/0400Z  SFC/FL100 15NM WIDE
LINE BETWEEN N1620E14543 - N1524E14643. SFC/FL020
10NM WIDE LINE BETWEEN N1716E14459 - N1623E14538. 

FCST ASH CLOUD +12H: 19/1000Z SFC/FL200 15NM WIDE
LINE BETWEEN N1620E14541 - N1521E14643. SFC/FL020
10NM WIDE LINE BETWEEN N1711E14454 - N1625E14538. 

FCST ASH CLOUD +18H: NOT AVBL

REMARKS: VISIBLE IMAGERY NOW SHOWS A 2ND PLUME
ESTIMATED AT FL020 MOVING NW IN ADDITION TO THE
PLUEME STIMATED AT FL100 MOVING SE ...SCHWARTZ

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY19/0430Z

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