FVXX20 KNES 112136
VOLCANIC ASH ADVISORY
ISSUED: 2005JUL11/2135Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/529

INFORMATION SOURCE: GFS MODEL WINDS. PILOT REPORT.
GOES-9. 

ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND
GASES

OBS ASH DATE/TIME: 11/2002Z

OBS ASH CLOUD: SFC/FL200 N1659E14501 - N1616E14543
- N1601E14458 - N1649E14343 - N1659E14501 MOVING W
10 KNOTS. 

FCST ASH CLOUD +6H: 12/0200Z SFC/FL200 N1804E14217
- N1736E14534 - N1616E14545 - N1541E14533 -
N1607E14218 - N1804E14217 

FCST ASH CLOUD +12H: 12/0800Z SFC/FL200
N1718E14158 - N1711E14541 - N1523E14549 -
N1416E14210 - N1718E14158 

FCST ASH CLOUD +18H: 12/1400Z SFC/FL200
N1631E14412 - N1631E14547 - N1436E14557 -
N1358E14330 - N1631E14412 

REMARKS: THE PLUME APPEARES TO BE FANNING OUT A
BIT AND A PILOT ESTIMATES THE HEIGHT TO AROUND
FL200.  DUE TO VERY DIVERGENT WIND DIRECTIONS WITH
ALTITUDE THE FORECAST OF THE ASH IS TO SPREAD OUT
IN SEVERAL DIRECTIONS.  HOWEVER DUE TO THE
COMPLEXITY THERE IS LOW CONFIDENCE IN THE 12 AND
18 HOUR FORECAST.  ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005JUL12/0330Z

NNNN
Full Size Graphic


-