FVXX22 KWBC 312315
VOLCANIC ASH ADVISORY
ISSUED: 2003MAY31/2315Z      VAAC: WASHINGTON

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

ADVISORY NUMBER: 2003/090
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GUAM UPPER AIR SOUNDING. GFS
MODEL WINDS FORECAST. AIRCRAFT REPORT.
  
ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS SINCE MAY 10. 
 
OBS ASH DATE/TIME: 31/2213Z
 
OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA.  WINDS
SFC/FL050 MOVING N 10-15 KNOTS.  FL060/FL100 LIGHT AND VARIABLE.
FL120/FL2000 MOVING SE 5-10 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS.

REMARKS: ASH IS NOT IDENTIFIABLE IN SATELLITE IMAGERY THROUGH
31/2302Z DUE TO OBSCURING DENSE WEATHER CLOUDS. AIR-MICRONESIA
REPORTS HEAVY ASH FL030/200 AT 15.7N 145.4E

NEXT ADVISORY: WILL BE ISSUED BY 2003JUN01/0500Z.

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