FVXX22 KWBC 130425
VOLCANIC ASH ADVISORY           
ISSUED: 2003MAY13/0425Z      VAAC: WASHINGTON
 
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540    AREA: MARIANA ISLANDS
 
SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2003/012
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GFS MODEL WINDS FORECAST.

ERUPTION DETAILS: ERUPTION OCCURRED AROUND 10/0730Z AND EMISSIONS
CONTINUE TO OCCUR.
 
OBS ASH DATE/TIME: 13/0302Z
 
OBS ASH CLOUD: SFC/FL160 N1754E14129 N1932E13728 N1917E13050
N1655E12326 N1456E12332 N1357E12532 N1309E13226 N1340E14016
N1628E14134 N1754E14129 MOVING W 10-15 KNOTS.  
SFC/080 20 NM WIDE LINE OF ASH BETWEEN N1621E14540 N1618E14348
MOVING W AT 15-20 KNOTS. 

FCST ASH CLOUD +6H: SEE SIGMETS.
 
REMARKS: PLUME ATTACHED TO THE VOLCANO HAS SHIFTED ORIENTATION
FROM EARLIER AND IS NOW ALIGNED EAST/WEST. LARGE AREA OF
PREVIOUSLY EMITTED ASH IS SEPARATE FROM THE OTHER PLUME AND IS
STILL SEEN DISTINCTLY IN VISIBLE AND MULTISPECTRAL IMAGERY
ALTHOUGH IT APPEARS TO SLOWLY BE DISPERSING. SOUTHERN EDGE IS
ESPECIALLY DIFFUSE AND EXACT EDGE OF ASH AREA IS DIFFICULT TO
DISCERN.  ANALYST..RUMINSKI

NEXT ADVISORY: WILL BE ISSUED BY 2003MAY13/1000Z.

NNNN
"Attached Graphic Map Depicting Ash Only" 

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