FVXX20 KNES 022358
VOLCANIC ASH ADVISORY
ISSUED: 2005JUL02/2358Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/486

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS EMISSION OF ASH AND
GASES. 

OBS ASH DATE/TIME: 02/2249Z

OBS ASH CLOUD: SFC/FL180 N1620E14541 - N1553E14526
- N1502E14337 - N1613E14341 - N1620E14541 MOVING
SW 15-20 KNOTS. 

FCST ASH CLOUD +6H: 03/0500Z SFC/FL180 N1620E14542
- N1541E14528 - N1421E14159 - N1610E14208 -
N1620E14542 

FCST ASH CLOUD +12H: 03/1100Z SFC/FL180
N1621E14540 - N1553E14528 - N1441E14253 -
N1559E14254 - N1621E14540 

FCST ASH CLOUD +18H: 03/1700Z SFC/FL180 40NM WIDE
LINE BETWEEN N1621E14541 - N1443E14255. 

REMARKS: IMAGERY SHOWS A FAN SHAPED PLUME OF ASH
MOVING SOUTHWEST FROM THE ISLAND WITH THE LOWER
LEVEL PORTION MOVING MORE WESTERLY AND THE UPPER
LEVEL PORTION MORE SOUTHWESTERLY. THERE ARE CLOUDS
OVERSPREADING FROM THE WEST MAKING THE FULL EXTEND
TO THE PLUME DIFFICULT TO DETECT.  ...SWANSON

NEXT ADVISORY: WILL BE ISSUED BY 2005JUL03/0600Z

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