FVXX22 KWBC 292303
VOLCANIC ASH ADVISORY
ISSUED: 2003MAY29/2300Z      VAAC: WASHINGTON

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

ADVISORY NUMBER: 2003/081
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GFS MODEL WINDS FORECAST.
PILOT REPORT.
  
ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS SINCE MAY 10. 
 
OBS ASH DATE/TIME: 29/2213Z
 
OBS ASH CLOUD: SFC/FL150 22 NM WIDE LINE OF ASH EXTENDING BETWEEN
N1621E14540 N1740E14502 N1840E14409.  ASH IS MOVING N 10-20
KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS

REMARKS: A PILOT REPORT WAS RECEIVED THAT INDICATED ASH WAS NOW
UP TO FL140 AND MOVING NW.  MODEL FORECAST SOUNDING INFORMATION
PLACES THE TOP OF THE ASH BETWEEN FL140 AND FL150.  SATELLITE
IMAGERY THROUGH 2213Z SHOWS THE ASH PLUME EXTENDING APPROXIMATELY
165 NM TO THE NORTH NORTHWEST (150 DEGREES) OF THE SUMMIT.

NEXT ADVISORY: WILL BE ISSUED BY 2003MAY30/0500Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

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