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.
NNNN
"Attached Graphic Map Depicting Ash Only"
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