FVXX20 KNES 212235
VOLCANIC ASH ADVISORY
ISSUED: 2005MAY21/2235Z   VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2005/309

INFORMATION SOURCE: GFS MODEL WINDS. GOES-9. 

ERUPTION DETAILS: CONTINUOUS EMISSION OF STEAM AND
ASH

OBS ASH DATE/TIME: 21/2125Z

OBS ASH CLOUD: SFC/FL080 N1905E14246 - N1843E14438
- N1624E14550 - N1601E14501 - N1700E14258 -
N1905E14246 MOVING NW 5-10 KNOTS. 

FCST ASH CLOUD +6H: 22/0300Z SFC/FL080 N1946E14156
- N1937E14404 - N1617E14541 - N1626E14217 -
N1946E14156 

FCST ASH CLOUD +12H: 22/0900Z SFC/FL080
N2107E14432 - N1616E14541 - N1625E14135 -
N2031E14147 - N2107E14432 

FCST ASH CLOUD +18H: 22/1500Z SFC/FL080
N2035E14438 - N1616E14540 - N1655E14134 -
N2000E14142 - N2035E14438 

REMARKS: THERE CONTINUES TO BE A PLUME MOVING
MAINLY NORTHWEST OFF THE ISLAND.  THERE CAN ALSO
BE SEEN IN THE FIRST VISIBLE IMAGERY OF THE DAY
SOME VOG WEST AND NORTH OF THE OBSERVED AREA OF
ASH AND STEAM.  ...

NEXT ADVISORY: WILL BE ISSUED BY 2005MAY22/0430Z

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