FVXX22 KWBC 202251
VOLCANIC ASH ADVISORY             
ISSUED: 2003MAY20/2300Z      VAAC: WASHINGTON
 
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540    AREA: MARIANA ISLANDS
 
SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2003/044
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GFS MODEL WINDS FORECAST 

ERUPTION DETAILS: ONGOING ASH EMISSIONS...FIRST ERUPTION BEGAN
MAY 10
 
OBS ASH DATE/TIME: 20/2213Z
 
OBS ASH CLOUD: SFC/FL070 N1637E14356 N1555E14321 N1611E14257
N1637E14356 MOVING W 10-15 KNOTS.

SFC/FL120 20 NM WIDE LINE OF ASH EXTENDING BETWEEN N1621E14520
N1534E14412. ASH IS MOVING SW 5-10 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS. 

REMARKS: VISIBLE AND MULTISPECTRAL IMAGERY SHOWS AN ASH PLUME
ESTIMATED AT FL120 EXTENDING TO THE WEST SOUTHWEST. THIS IS PART
OF AN ONGOING ERUPTION.  ANOTHER AREA OF ASH ESTIMATED AT FL070
IS LOCATED TO THE WEST OF THE VOLCANO. THE AREA OF ASH DESCRIBED
EARLIER THAT EXTENDED TO THE NORTH AND WEST OF THE VOLCANO HAS
DISSIPATED.

NEXT ADVISORY: WILL BE ISSUED BY 2003MAY21/0500Z.

NNNN
"Attached Graphic Map Depicting Ash Only" 

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