FVXX20 KNES 041915
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY04/1913Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/240

INFORMATION SOURCE: GFS MODEL WINDS. RADIOSONDE.
GOES-9. 

ERUPTION DETAILS: CONTINUOUS EMISSION

OBS ASH DATE/TIME: 04/1802Z

OBS ASH CLOUD: SFC/FL100 N1716E14313 - N1714E14450
- N1622E14540 - N1449E14558 - N1340E14355 -
N1716E14313 MOVING SW 10-15 KNOTS. SFC/FL140
N1631E14549 - N1558E14821 - N1401E14805 -
N1436E14550 - N1631E14549 MOVING E 5-10 KNOTS.
SFC/FL120 N1900E14504 - N1858E14600 - N1609E14736
- N1704E14459 - N1900E14504 MOVING N 1-5 KNOTS. 

FCST ASH CLOUD +6H: 05/0000Z SFC/FL100 N1738E14230
- N1720E14458 - N1621E14544 - N1351E14601 -
N1227E14234 - N1507E14114 - N1738E14230 SFC/140
N1638E14628 - N1620E14948 - N1337E14923 -
N1337E14628 - N1638E14628 SFC/120 N2101E14337 -
N2055E14558 - N1637E14729 - N1658E14342 -
N2101E14337 

FCST ASH CLOUD +12H: 05/0600Z SFC/FL100
N1831E14035 - N1744E14501 - N1623E14544 -
N1258E14601 - N1159E14013 - N1831E14035 SFC/FL140
N1702E14646 - N1643E15004 - N1326E15004 -
N1302E14642 - N1702E14646 SFC/FL120 N2120E14646 -
N1637E14808 - N1710E14259 - N2117E14258 -
N2120E14646 

FCST ASH CLOUD +18H: 05/1200Z SFC/FL100
N1739E14243 - N1723E14507 - N1621E14543 -
N1435E14540 - N1412E14256 - N1739E14243  SFC/FL120
NO ASH EXP SFC/FL140 NO ASH EXP

REMARKS: THE CURRENT CONSTANT EMISSION IS NOW
PRIMARILY MOVING WEST AND SOUTHWEST FROM THE
VOLCANO AND IS ESTIMATED TO FL100.  AREAS TO THE
NORTH AND EAST OF THE VOLCANO ARE SLIGHTLY HIGHER
BUT ARE NOT BEING REFRESHED FROM THE VOLCANO AND
ARE DRIFTING EAST AT FL140 AND ALMOST STATIONARY
TO THE NORTH OF THE ISLAND. ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY05/0115Z

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