FVXX22 KWBC 100721
VOLCANIC ASH ADVISORY
ISSUED: 2003JUN10/0710Z      VAAC: WASHINGTON

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

ADVISORY NUMBER: 2003/129
 
INFORMATION SOURCE:  GOES-9 IMAGERY. GFS MODEL WINDS FORECAST. 
  
ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS SINCE MAY 10. 
 
OBS ASH DATE/TIME: 10/0625Z
 
OBS ASH CLOUD: SFC/FL080 32 WIDE LINE OF ASH EXTENDING BETWEEN
N1621E14540 N1521E14353. MOVING SW AT 10 KNOTS. SFC/FL080
N1621E14540 N1342E14227 N1516E14000 N2148E14508 N2128E14612
N1806E14426 N1621E14540. MOVING W 10 KNOTS. 

FCST ASH CLOUD +6H: SEE SIGMETS.

REMARKS: SINCE O300Z THE PLUME FROM THE VOLCANO ESTIMATED TO
FL080 HAS BECOME MORE VIGOROUS AND AT 0625Z A THICK PLUME ROUGHLY
32 NM WIDE EXTENDED SOUTHWEST (239 DEGREES) AROUND 120 NM FROM
THE VOLCANO. THERE IS ALSO A LARGE AREA OF DIFFUSE ASH NOTED WEST
OF THIS AREA THAT EXTENDS TO NEAR 140E FROM 14N TO AROUND 22N.
THE PREVIOUSLY EXTENSIVE AREA WEST OF 140E THOUGHT TO BE ASH
EARLIER WAS ALSO KNOWN TO BE POSSIBLY MIXED WITH OR MOSTLY ASIAN
SMOKE FROM LAST WEEK BUT STILL ESTIMATED BELOW FL100

NEXT ADVISORY: WILL BE ISSUED BY 2003JUN11/1300Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

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