FVXX20 KNES 080632
VOLCANIC ASH ADVISORY
ISSUED: 2005APR08/0630Z VAAC: WASHINGTON
VOLCANO: ANATAHAN 0804-20
LOCATION: N1621E14540 AREA: MARIANA.ISLANDS
SUMMIT ELEVATION: 2585 FT (788 M)
ADVISORY NUMBER: 2005/128
INFORMATION SOURCE: RADIOSONDE. GOES-9.
ERUPTION DETAILS: CONTINUOUS EMISSIONS
OBS ASH DATE/TIME: 08/0525Z
OBS ASH CLOUD: SFC/FL120 6NM WIDE LINE BETWEEN
N1641E14434 - N1618E14537. ASH IS MOVING W 15-20
KNOTS.
FCST ASH CLOUD +6H: 08/1130Z SFC/FL120 6NM WIDE
LINE BETWEEN N1615E14534 - N1604E14440.
FCST ASH CLOUD +12H: 08/1730Z SFC/FL120 6NM WIDE
LINE BETWEEN N1615E14537 - N1604E14441.
FCST ASH CLOUD +18H: NOT AVBL
REMARKS: SATELLITE IMAGERY SHOWED A PLUME POSSIBLY
CONTAINING ASH EXTENDING FOR APPROXIMATELY 50 NMI
TO THE WEST NORTHWEST OF THE SUMMIT. AN
INTERMITTENT HOT SPOT PERSISTED BUT MULTISPECTRAL
IMAGERY NO LONGER SUGGESTED A STRONG ASH SIGNATURE
AS WAS THE CASE 24 HOURS AGO. THE DAILY REPORT
FOR THURSDAY INDICATED THAT SEISMICITY WAS AT LOW
LEVELS AND IT MAY BE THAT WHAT IS BEING SEEN IN
SATELLITE IMAGERY IS THE VOG THAT HAS BEEN
REPRESENTATIVE OF THE BACKGROUND STATE FOR THIS
VOLCANO. ...TURK
NEXT ADVISORY: WILL BE ISSUED BY 2005APR08/1230Z
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