FVXX22 KWBC 060331
VOLCANIC ASH ADVISORY
ISSUED: 2003JUN06/0330Z VAAC: WASHINGTON
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540 AREA: MARIANA ISLANDS
SUMMIT ELEVATION: 2585 FT (788 M)
ADVISORY NUMBER: 2003/111
INFORMATION SOURCE: GOES-9 IMAGERY. UPPER AIR SOUNDING
ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS SINCE MAY 10.
OBS ASH DATE/TIME: 06/0302Z
OBS ASH CLOUD: SFC/FL100 13 NM WIDE LINE OF ASH EXTENDING
BETWEEN N1621E14540 N1703E14501. ASH IS MOVING NW AT 10 KNOTS.
SFC/FL070 6 NM WIDE LINE OF ASH EXTENDING BETWEEN N1621E14540
N1640E14437. ASH IS MOVING W 10-15 KNOTS.
FCST ASH CLOUD +6H: SEE SIGMETS.
REMARKS: SATELLITE IMAGERY THROUGH 0302Z SHOWED TWO PLUMES OF ASH
EMANATING FROM THE VOLCANO. THE HIGHER PLUME ESTIMATED TO BE
NEAR FL100 EXTENDED APPROXIMATELY 56 NM TO THE NORTHWEST OF THE
SUMMIT WHILE THE LOWER LEVEL PLUME ESTIMATED NEAR FL070 EXTENDED
FOR APPROXIMATELY 62 NM TO THE WEST OF THE SUMMIT. ADDITIONAL
DIFFUSE ASH LIKELY EXTENDS FURTHER TO THE NORTHWEST BUT COULD NOT
BE DETECTED DUE TO THE HIGH SUN ANGLE. TURK
NEXT ADVISORY: WILL BE ISSUED BY 2003JUN06/0930Z.
NNNN"Attached Graphic Map Depicting Ash Only"
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