FVXX22 KWBC 210902
VOLCANIC ASH ADVISORY             
ISSUED: 2003MAY21/0900Z      VAAC: WASHINGTON
 
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540    AREA: MARIANA ISLANDS
 
SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2003/046
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GFS MODEL WINDS FORECAST 

ERUPTION DETAILS: ONGOING ASH EMISSIONS...FIRST ERUPTION BEGAN
MAY 10
 
OBS ASH DATE/TIME: 21/0802Z
 
OBS ASH CLOUD: SFC/FL190 26 NM WIDE LINE OF ASH EXTENDING BETWEEN
N1621E14540 N1611E14406.  ASH IS MOVING W 5-10 KNOTS.

SFC/FL050 N1629E14423 N1636E13836 N1354E14208 N1629E14423.  ASH
IS MOVING SW 5-10 KNOTS.

SFC/FL050 99 NM WIDE LINE OF ASH EXTENDING BETWEEN N1655E13913
N1922E13829 N2208E14019.  ASH IS MOVING N 5-10.

FCST ASH CLOUD +6H: SEE SIGMETS. 

REMARKS: THE LOW SUN ANGLE HAS REVEALED A LARGE AREA OF PROBABLE
ASH ESTIMATED NEAR FL050 WHICH VEERED WITH LATITUDE UNTIL IT
MERGED WITH A FRONTAL BOUNDARY NORTH OF 20 DEGREES NORTH
LATITUDE. A PLUME OF THICK ASH ESTIMATED NEAR FL190 EXTENDED FROM
THE SUMMIT TO A POINT PROXIMATELY 95 NM TO THE WEST.  TURK

NEXT ADVISORY: WILL BE ISSUED BY 2003MAY21/1500Z.

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"Attached Graphic Map Depicting Ash Only" 

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