FVXX22 KWBC 222233
VOLCANIC ASH ADVISORY            
ISSUED: 2003MAY22/2230Z      VAAC: WASHINGTON

VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540    AREA: MARIANA ISLANDS
 
SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2003/053
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GFS MODEL WINDS FORECAST. 
  

ERUPTION DETAILS: ONGOING ASH EMISSIONS...FIRST ERUPTION BEGAN
MAY 10
 
OBS ASH DATE/TIME: 22/2213Z
 
OBS ASH CLOUD: SFC/FL170 10 NM WIDE LINE OF ASH EXTENDING BETWEEN 
N1621E14540 N1500E14512 N1438E14527.  ASH IS MOVING S 5-12 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS. 

REMARKS: THICKER ASH CAN NOW BE SEEN IN BOTH VISIBLE AND
MULTISPECTRAL SATELLITE IMAGES THROUGH 2213Z.  THE PLUME EXTENDS
APPROXIMATELY 105 MILES FROM THE SUMMIT TO THE SOUTH SOUTHWEST
(ABOUT 20 DEGREES).  THE GFS MODEL WINDS FORECAST AT 21Z PLACES
THE ASH UP TO FL170.

NEXT ADVISORY: WILL BE ISSUED BY 2003MAY23/0530Z.

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"Attached Graphic Map Depicting Ash Only" 

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