FVXX22 KWBC 120653 
VOLCANIC ASH ADVISORY
ISSUED: 2003JUN12/0650Z      VAAC: WASHINGTON

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

ADVISORY NUMBER: 2003/137
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GFS MODEL WINDS FORECAST.  
  
ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS SINCE MAY 10. 
 
OBS ASH DATE/TIME: 12/0602Z
 
OBS ASH CLOUD:  SFC/FL100 15 NM WIDE LINE OF ASH EXTENDING
BETWEEN N1621E14540 N1647E14505.  ASH IS MOVING NW AT 10-15
KNOTS.

SFC/FL100 N1648E14510 N1720E45021 N1720E14400 N1654E14414 MOVING
NW 10-15 AT KNOTS.

SFC/FL070 N1720W14400 N1922W14427 N1942W14010 N1627E14349
N1418E13243 N1420E13418 N1537E13458 N1557E13625 N2722E13830
N1744E14149 N1725E14338 MOVING WEST AT 5-10 KNOTS.  

FCST ASH CLOUD +6H: SEE SIGMETS.

REMARKS: VISIBLE IMAGERY SHOWED A THICK PLUME ESTIMATED AT FL100
ATTACHED TO THE VOLCANO.  A 2ND AREA OF ASH ESTIMATED AT FL100 IS
NORTHWEST OF THE PLUME.  A LARGE AREA OF DIFFUSE ASH ESTIMATED 
AT FL070 IS FURTHER WEST AND MOVING WEST.  POINTS ARE
APPROXIMATIONS. 

NEXT ADVISORY: WILL BE ISSUED BY 2003JUN12/1300Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

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