FVXX20 KNES 042114
VOLCANIC ASH ADVISORY
ISSUED: 2005JUN04/2113Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/365

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTIUNOUS EMISSION OF ASH AND
GASES

OBS ASH DATE/TIME: 04/2025Z

OBS ASH CLOUD: SFC/FL180 30NM WIDE LINE BETWEEN
N1827E14359 - N1713E14448 - N1620E14539 -
N1559E14548. ASH IS MOVING NW 10-15 KNOTS. 

FCST ASH CLOUD +6H: 05/0230Z SFC/FL180 30NM WIDE
LINE BETWEEN N1840E14231 - N1644E14413 -
N1619E14543. 

FCST ASH CLOUD +12H: 05/0830Z SFC/FL180 40NM WIDE
LINE BETWEEN N1836E14219 - N1659E14259 -
N1629E14350 - N1618E14543. 

FCST ASH CLOUD +18H: 05/1430Z SFC/FL180 30NM WIDE
LINE BETWEEN N1637E14359 - N1618E14543. 

REMARKS: IN THE FIRST VISIBLE IMAGERY  A SMALL
FAINT AREA OF ASH CAN BE SEEN SOUTH OF THE ISLAND.
 MODEL WINDS DO NOT  ACCOUNT FOR THIS MOTION
HOWEVER IT DOES NOT APPEAR TO BE MUCH HIGHER THAN
THE MORE DOMINANT PLUME MOVING TO THE NORTHWEST. 
THE HEIGHT ASSIGNMENT HAS BEEN RAISED SLIGHTLY TO
FL180 TO COVER THIS AREA   ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005JUN05/0330Z

NNNN
Full Size Graphic


-