FVXX20 KNES 091640
VOLCANIC ASH ADVISORY
ISSUED: 2005AUG09/1639Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/653

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS ASH EMISSIONS

OBS ASH DATE/TIME: 09/1525Z

OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE
DATA. WINDS SFC/FL100 MOVING TO W 15-20 KNOTS.
FL100/FL250 MOVING TO NW 15-25 KNOTS.

FCST ASH CLOUD +6H: 09/2130Z 

FCST ASH CLOUD +12H: 10/0330Z 

FCST ASH CLOUD +18H: 10/0930Z 

REMARKS: A PLUME APPEARED TO BE SEEN IN IMAGERY
EARLIER THRU ABOUT 12Z EXTENDING TO THE NORTHWEST
OF THE VOLCANO. HOWEVER IT HAS SINCE BECOME
OBSCURED BY THUNDERSTORMS AND OTHER CLOUDS. IT IS
POSSIBLE THAT ANY ASH TO THE NORTHWEST OF THE
VOLCANO COULD BECOME ENTRAINED IN THE THUNDERSTORM
AND LOFTED TO A HIGHER LEVEL. ANY ASH WOULD MOVE
TO THE WEST UP TO ABOUT FL100 AND THEN SHIFT TO
THE NORTHWEST BETWEEN FL100 AND FL250 BASED ON THE
MODEL.  ...RUMINSKI

NEXT ADVISORY: WILL BE ISSUED BY 2005AUG09/2245Z

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