FVXX20 KNES 261545
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY26/1545Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/328

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

ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND
GASES

OBS ASH DATE/TIME: 26/1502Z

OBS ASH CLOUD: SFC/FL100 68NM WIDE LINE BETWEEN
N1633E14158 - N1621E14542. ASH IS MOVING W 15
KNOTS. SFC/FL240 N1639E14200 - N1525E14300 -
N1446E14144 - N1545E14035 - N1639E14200 MOVING SW
10-15 KNOTS. 

FCST ASH CLOUD +6H: 26/2100Z SFC/FL100 75NM WIDE
LINE BETWEEN N1650E14008 - N1620E14543. SFC/FL240
N1628E14132 - N1457E14233 - N1352E14109 -
N1514E13951 - N1628E14132 

FCST ASH CLOUD +12H: 27/0300Z SFC/FL100 80NM WIDE
LINE BETWEEN N1628E13931 - N1651E14200 -
N1618E14544.  SFC/FL240 NO ASH EXP

FCST ASH CLOUD +18H: 27/0900Z SFC/FL100 80NM WIDE
LINE BETWEEN N1620E14544 - N1654E14152 -
N1552E13917. 

REMARKS: CURRENTLY THE ASH COMING OUT OF THE
VOLCANO IS DUE WEST AROUND 15 KNOTS AND ESTIMATED
BASED ON SOUNDING DATA TO BE AT AND BELOW FL100. 
THERE IS AN AREA OF ASH  WITH THE LEADING EDGE OUT
AROUND 280 NM WEST SOUTHWEST OF THE VOLCANO THAT
IS MOVING SLIGHTLY SOUTHWEST AND BASED ON PIREPS
TO BE AT AND BELOW FL240.  THIS HIGHER LEVEL ASH
IS DISSIPATING WITH TIME.    ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY26/2145Z

NNNN
Full Size Graphic


-