FVXX20 KNES 092155
VOLCANIC ASH ADVISORY
ISSUED: 2005AUG09/2155Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/654

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

ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS

OBS ASH DATE/TIME: 09/2102Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE
DATA. WINDS SFC/FL190 MOVING TO NW 15-20 KNOTS.
FL200/FL250 MOVING TO SW 5-8 KNOTS.

FCST ASH CLOUD +6H: 10/0300Z 

FCST ASH CLOUD +12H: 10/0900Z 

FCST ASH CLOUD +18H: 10/1500Z 

REMARKS: A PILOT HAS REPORTED A HEAVY ASH CLOUD
OVER ANATAHAN VOLCANO AT APPROXIMATELY FL210
DRIFTING TO THE SOUTH SOUTHWEST .  UPPER AIR
MODELS SUGGEST THAT ASH BELOW FL190 WILL MOVE TO
THE NORTHWEST OR WEST NORTHWEST.  BETWEEN FL200
AND FL250 WINDS ARE LIGHT AND SOMEWHAT VARIABLE
BUT ASH AT THESE LEVELS WOULD GENERALLY TEND TO
MOVE SLOWLY TO THE WEST OR SOUTHWEST OR SOUTH
SOUTHWEST.  ...

NEXT ADVISORY: WILL BE ISSUED BY 2005AUG10/0400Z

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