FVXX20 KNES 290709
VOLCANIC ASH ADVISORY
ISSUED: 2005APR29/0709Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/217

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS ASH EMISSION

OBS ASH DATE/TIME: 29/0602Z

OBS ASH CLOUD: SFC/FL090 N1653E14352 - N1617E14538
- N1526E14427 - N1612E14346 - N1653E14352 MOVING W
10 KNOTS. 

FCST ASH CLOUD +6H: 29/1200Z SFC/FL090 N1717E14310
- N1617E14537 - N1510E14409 - N1507E14316 -
N1717E14310 

FCST ASH CLOUD +12H: 29/1800Z SFC/FL090
N1731E14243 - N1709E14413 - N1615E14537 -
N1501E14406 - N1455E14256 - N1731E14243 

FCST ASH CLOUD +18H: 30/0000Z SFC/FL090
N1741E14234 - N1722E14413 - N1637E14531 -
N1617E14537 - N1550E14532 - N1451E14353 -
N1454E14243 - N1741E14234 

REMARKS: LOW LEVEL ASH EMISSIONS EXTEND WEST TO
ABOUT 144E AND ARE SEEN IN VISIBLE AND
MULTISPECTRAL GOES-9 IMAGERY. LOW LEVEL WIND FLOW
EXPECTED TO REMAIN NEARLY CONSTANT FROM THE EAST
AROUND 10 KT THROUGH THE FORECAST PERIOD.
EXTENSIVE AREA OF VOG SHOWS UP WELL IN LATE
AFTERNOON VISIBLE IMAGERY AND IS ABOUT 85 NM WIDE
EXTENDING FROM 15N140E TO 20N146E. THIS AREA OF
VOG IS NOT DISCERNABLE IN MULTISPECTRAL IMAGERY.
...RUMINSKI

NEXT ADVISORY: WILL BE ISSUED BY 2005APR29/1315Z

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