FVXX20 KNES 291313
VOLCANIC ASH ADVISORY
ISSUED: 2005APR29/1312Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/218

INFORMATION SOURCE: GFS MODEL WINDS. RADIOSONDE.
GOES-9. 

ERUPTION DETAILS: CONTINUOUS LOW LEVEL EMISSION.

OBS ASH DATE/TIME: 29/1202Z

OBS ASH CLOUD: SFC/FL090 N1631E14438 - N1622E14541
- N1608E14535 - N1545E14439 - N1631E14438 MOVING W
10-15 KNOTS. 

FCST ASH CLOUD +6H: 29/1800Z SFC/090 N1635E14417 -
N1622E14541 - N1608E14535 - N1535E14418 -
N1635E14417 

FCST ASH CLOUD +12H: 30/0000Z SFC/FL090
N1640E14315 - N1622E14541 - N1607E14535 -
N1552E14316 - N1640E14315 

FCST ASH CLOUD +18H: 30/0600Z SFC/FL090
N1646E14242 - N1622E14543 - N1549E14523 -
N1528E14242 - N1646E14242 

REMARKS: IN MULTISPECTRAL IMAGERY THERE WAS AN
INCREASED DENSITY TO THE EMISSION AROUND 08Z WHICH
HAS SPREAD WEST AND IS SLOWLY DISSIPATING WITH
TIME.  CURRENTLY THE DENSEST PORTION EXTENDS OUT
ONLY 15 NM WEST OF THE ISLAND.  THERE IS A
CONTINUOUS HOT SPOT AT THE VOLCANO.  THE
EXTENTSIVE VOG CAN NOT BE SEEN IN NIGHT TIME
IMAGERY.  ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005APR29/1915Z

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