FVXX22 KWBC 230454
VOLCANIC ASH ADVISORY            
ISSUED: 2003MAY23/0500Z      VAAC: WASHINGTON

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

ADVISORY NUMBER: 2003/054
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GFS MODEL WINDS FORECAST. 
  
ERUPTION DETAILS: ONGOING ASH EMISSIONS...FIRST ERUPTION BEGAN
MAY 10
 
OBS ASH DATE/TIME: 23/0413Z
 
OBS ASH CLOUD: SFC/FL170 N1621E14540 N1359E14432 N1355E14543
N1621E14540 MOVING S 15-20 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS AND VAFTAD. 

REMARKS: A FAIRLY THICK ASH PLUME EXTENDS FROM ANATAHAN TOWARD
GUAM.  HOWEVER THE ASH BECOMES TOO THIN AND THE WEATHER CLOUDS
TOO THICK TO CONCLUSIVELY SEE WHETHER THE ASH REACHES GUAM.  THE
ASH MIGHT EXTEND FARTHER THAN INDICATED IN THE OBS ASH CLOUD
SECTION BECAUSE NEARBY AREAS ARE SLIGTLY OBSCURED BY WEATHER
CLOUDS ASSOCIATED WITH CHAN-HOM.  ASH IS CURRENTLY MOVING SOUTH-
SOUTHWEST BUT OVER THE NEXT FEW HOURS IT WILL BEGIN MOVING ALMOST
DUE SOUTH.

NEXT ADVISORY: WILL BE ISSUED BY 2003MAY23/1100Z.

NNNN
"Attached Graphic Map Depicting Ash Only" 

""