FVXX20 KNES 021310
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY02/1310Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/230

INFORMATION SOURCE: GUAM MWO. HONOLULU MWO. GFS
MODEL WINDS. RADIOSONDE. VAFTAD. GOES-9. 

ERUPTION DETAILS: INCREASED ACTIVITY STARTING
ABOUT 0945Z

OBS ASH DATE/TIME: 02/1202Z

OBS ASH CLOUD: SFC/FL200 10NM WIDE LINE BETWEEN
N1647E14602 - N1618E14539. ASH IS MOVING NE 0-5
KNOTS. SFC/FL130 N1702E14439 - N1659E14525 -
N1618E14539 - N1625E14501 - N1632E14435 -
N1702E14439 MOVING NW 5-10 KNOTS. SFC/FL100
N1753E14259 - N1706E14438 - N1629E14436 -
N1540E14358 - N1628E14301 - N1654E14202 -
N1727E14159 - N1753E14259 MOVING W 10 KNOTS. 

FCST ASH CLOUD +6H: 02/1900Z SFC/FL130 N1749E14454
- N1617E14538 - N1659E14415 - N1741E14416 -
N1749E14454 SFC/FL100 N1752E14210 - N1742E14414 -
N1647E14422 - N1538E14258 - N1752E14210 SFC/FL200
N1707E14603 - N1646E14616 - N1613E14540 -
N1625E14538 - N1707E14603 

FCST ASH CLOUD +12H: 03/0100Z  SFC/FL130
N1801E14318 - N1741E14439 - N1623E14538 -
N1614E14540 - N1557E14329 - N1801E14318 SFC/FL100
N1818E14200 - N1801E14319 - N1558E14328 -
N1545E14201 - N1818E14200 

FCST ASH CLOUD +18H: 03/0700ZSFC/FL100 N1822E14200
- N1746E14453 - N1628E14538 - N1612E14540 -
N1543E14201 - N1822E14200 

REMARKS: ACTIVITY AT THE VOLCANO APPEARS TO HAVE
SLIGHTLY INCREASED SINCE THE LAST VAA. 
MULTI-SPECTRUAL IMAGERY SHOWS A MUCH HIGHER SIGNAL
AND ASH MOVING IN TWO DIRECTIONS... NW AND NE. 
ASH MOVING TO THE NE IS ESTIMATED AT FL200 BASED
ON 12Z SOUNDING FROM GUAM. ...GALLINA

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY02/1915Z

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