FVXX20 KNES 091554
VOLCANIC ASH ADVISORY
ISSUED: 2005JUN09/1554Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/386

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

ERUPTION DETAILS: POSSIBLE LARGER ERUPTION AT
09/1415Z

OBS ASH DATE/TIME: 09/1502Z

OBS ASH CLOUD: SFC/FL300 20NM WIDE LINE BETWEEN
N1625E14508 - N1626E14538. ASH IS MOVING W 5-10
KNOTS. SFC/FL100 N1735E14507 - N1718E14613 -
N1617E14635 - N1604E14528 - N1624E14456 -
N1735E14507 MOVING NE 0-5 KNOTS. 

FCST ASH CLOUD +6H: 09/2125Z SFC/FL300 N1737E14355
- N1710E14442 - N1618E14440 - N1618E14356 -
N1737E14355 SFC/FL100 N1823E14452 - N1757E14623 -
N1612E14609 - N1555E14541 - N1626E14453 -
N1823E14452 

FCST ASH CLOUD +12H: 10/0325Z SFC/FL300
N1820E14317 - N1804E14410 - N1655E14405 -
N1719E14311 - N1820E14317 SFC/FL100 N1819E14505 -
N1753E14614 - N1600E14630 - N1557E14536 -
N1626E14455 - N1819E14505 

FCST ASH CLOUD +18H: 10/0925Z SFC/FL100
N1749E14510 - N1735E14613 - N1544E14623 -
N1535E14534 - N1626E14459 - N1749E14510 

REMARKS: IR AND MULTI-SPECTRAL SATELLITE IMAGERY
SUGGEST A POSSIBLE HIGHER ERUPTION STARTING AROUND
1415Z.  HOWEVER...THERE MAY BE ENOUGH SFC FORCING
AND HEAT FROM THE VOLCANO TO PRODUCE A
THUNDERSTORM. EITHER WAY ASH WILL BE LIFTED TO A
HEIGHT OF FL300 BASED ON HEIGHT ESTIMATED FROM
GUAM RADAR.  OF COURSE THE DENSITY WILL BE LESS IF
IT IS A THUNDERSTORM...NEEDLESS TO SAY EXTREME
CAUTION IS ADVISED. ...GALLINA

NEXT ADVISORY: WILL BE ISSUED BY 2005JUN09/2200Z

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