FVXX22 KWBC 101307Z     
VOLCANIC ASH ADVISORY           
ISSUED: 2003MAY10/1300Z      VAAC: WASHINGTON
 
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540    AREA: MARIANA ISLANDS
                              
SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2003/001
 
INFORMATION SOURCE: GUAM MWO.  GMS IMAGERY. GFS MODEL WINDS
FORECAST.  UPPER AIR SOUNDING

ERUPTION DETAILS: ERUPTION APPEARS TO START AT ABOUT
10/0730Z.
 
OBS ASH DATE/TIME: 10/1232Z
 
OBS ASH CLOUD: SFC/FL350 25 NM WIDE LINE OF ASH EXTENDING
BETWEEN N1621E14540 N1500E14520 N1343E14612 MOVING S 35
KNOTS.  SFC/FL150 20 NM WIDE LINE OF ASH EXTENDING BETWEEN
N1621E14540 N1618E14412 MOVING W 10-15 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS AND VAFTAD
 
REMARKS: SATELLITE IMAGERY SHOWS POSSIBLE ERUPTION WITH HIGH
LEVEL ASH ESTIMATED AT FL350 MOVING SOUTH AT 35 KNOTS AND
LOWER LEVEL ASH ESTIMATED AT FL150 MOVING WEST AT 15 KNOTS. 
ANATAHAN HAS NOT ERUPTED IN RECENT TIMES BUT PLUME IS
CLOSEST TO ITS LOCATION SO IDENTITY OF VOLCANO NOT CERTAIN.

NEXT ADVISORY: WILL BE ISSUED BY 10/1900Z 

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"Attached Graphic Map Depicting Ash Only" 

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