FVXX20 KNES 071938
VOLCANIC ASH ADVISORY
ISSUED: 2005AUG07/1938Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/645

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


ERUPTION DETAILS: ONGOING ASH EMISSIONS AND RECENT
INCREASED SEISMICITY

OBS ASH DATE/TIME: 07/1825Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE
DATA. WINDS SFC/FL140 MOVING TO W 10-20 KNOTS.
FL150/FL240 MOVING TO NW 10 KNOTS.

FCST ASH CLOUD +6H: 08/0030Z 

FCST ASH CLOUD +12H: 08/0630Z 

FCST ASH CLOUD +18H: 08/1230Z 

REMARKS: THE USGS REPORTS GREATLY  INCREASED
SEISMICITY OVER THE PAST 20 MINUTES THAT COULD
INDICATE A POSSIBLE ASH EMISSION.  HOWEVER DENSE
WEATHER CLOUDS CURRENTLY PREVENT ASH DETECTION BY
SATELLITE.   ...

NEXT ADVISORY: WILL BE ISSUED BY 2005AUG08/0145Z

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