FVXX22 KWBC 220903
VOLCANIC ASH ADVISORY            
ISSUED: 2003MAY22/0900Z      VAAC: WASHINGTON

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

ADVISORY NUMBER: 2003/050
 
INFORMATION SOURCE:  GOES-9 IMAGERY. UPPER AIR SOUNDING  

ERUPTION DETAILS: ONGOING ASH EMISSIONS...FIRST ERUPTION BEGAN
MAY 10
 
OBS ASH DATE/TIME: 22/0802Z
 
OBS ASH CLOUD: SFC/FL120 25 NM WIDE LINE OF ASH EXTENDING BETWEEN
N1608E14526 N1545E14353.  ASH IS MOVING W 15 KNOTS.

SFC/FL070 N1621E14540 N1307E13829 N1054E14604 N1621E14540.  ASH
IS MOVING S 15-20 KNOTS.

SFC/FL070 N1621E13854 N1444E13712 N1959E13528 N1954E14021
N1621E13854.  ASH IS MOVING NW 15-20 KNOTS.

SFC/FL070 127 NM WIDE LINE OF ASH EXTENDING BETWEEN N2001E13836
N2202E14146.  ASH IS MOVING NE 10-15 KNOTS.

FCST ASH CLOUD +6H: SEE SIGMETS. 

REMARKS:  SATELLITE IMAGERY THROUGH 0802Z SHOWED A LARGE AREA OF
PREDOMINANTLY DIFFUSE ASH ESTIMATED TO BE NEAR FL070.  A SMALL
AREA OF ASH ESTIMATED TO BE NEAR FL120 HAD MOVED WEST FROM
THE SUMMIT.  A PILOT REPORT FROM A JAL FLIGHT TO GUAM INDICATED
ASH TO FL070 WITHIN THE LAST 6 HOURS.  ASH IS LIKELY MIXED WITH
THE CLOUD SHIELD ASSOCIATED WITH TYPHOON CHAN-HOM WELL TO THE
SOUTH OF THE VOLCANO. TURK

NEXT ADVISORY: WILL BE ISSUED BY 2003MAY22/1500Z.

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"Attached Graphic Map Depicting Ash Only" 

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