FVXX20 KNES 300714
VOLCANIC ASH ADVISORY
ISSUED: 2005AUG30/0712Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/739

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: ONGOING ASH EMISSIONS

OBS ASH DATE/TIME: 30/0402Z

OBS ASH CLOUD: SFC/FL150 8NM WIDE LINE BETWEEN
N1619E14540 - N1552E14523. ASH IS MOVING SW 20-25
KNOTS. 

FCST ASH CLOUD +6H: 30/1000Z SFC/FL150 8NM WIDE
LINE BETWEEN N1620E14540 - N1552E14522. 

FCST ASH CLOUD +12H: 30/1600Z SFC/FL150 8NM WIDE
LINE BETWEEN N1620E14540 - N1557E14519. 

FCST ASH CLOUD +18H: 30/2200Z SFC/FL150 8NM WIDE
LINE BETWEEN N1619E14540 - N1605E14514. 

REMARKS: AT 0402Z THROUGH A BREAK IN THE CLOUDS A
NARROW ASH PLUME COULD BE SEEN EXTENDING FROM THE
SUMMIT TOWARD THE SOUTH SOUTHWEST.  SINCE THEN
WEATHER CLOUDS HAVE MOVED INTO THE AREA AND
PREVENTED ASH DETECTION IN SUBSEQUENT IMAGES
THROUGH 0625Z. AS TROPICAL STORM NABI MOVES
WESTWARD ASH DETECTION IS EXPECTED TO BECOME EVEN
MORE DIFFICULT.   ...

NEXT ADVISORY: WILL BE ISSUED BY 2005AUG30/1315Z

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