FVXX20 KNES 272257
VOLCANIC ASH ADVISORY
ISSUED: 2005APR27/2257Z   VAAC: WASHINGTON

VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540   AREA: MARIANA.ISLANDS

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/211

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS LOW  LEVEL EMISSION

OBS ASH DATE/TIME: 27/2213Z

OBS ASH CLOUD: SFC/FL090 N1639E14520 - N1627E14548
- N1550E14547 - N1602E14500 - N1639E14520 MOVING W
5 KNOTS. 

FCST ASH CLOUD +6H: 28/0400Z SFC/FL090 N1635E14543
- N1556E14546 - N1523E14402 - N1631E14400 -
N1635E14543 

FCST ASH CLOUD +12H: 28/1000Z SFC/FL090
N1630E14541 - N1607E14543 - N1529E14422 -
N1609E14414 - N1630E14541 

FCST ASH CLOUD +18H: 28/1600Z SFC/FL090 25NM WIDE
LINE BETWEEN N1621E14542 - N1553E14423. 

REMARKS: IN THE FIRST VISIBLE IMAGERY OF THE DAY
IT APPEARS DUE TO LIGHT AND VARIABLE WINDS THE
AREA OF STEAM AND LIGHT ASH SURROUNDS THE ISLAND
WITH A SLIGHT EXTENTION TO THE WEST.  THERE IS
ALSO VISIBLE AND LARGE AREA OF VOG BELOW FL090
AROUND 100 KM WIDE BETWEEN POINTS N16.O E144.3 -
N19.3 E146.1 - N21.6 E148.5.  A HOTSPOT CAN ALSO
BE DETECTED.  ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005APR28/0500Z

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