FVXX22 KWBC 061017
VOLCANIC ASH ADVISORY
ISSUED: 2003JUL06/1030Z      VAAC: WASHINGTON

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

SUMMIT ELEVATION: 2585 FT (788 M)

ADVISORY NUMBER: 2003/234

INFORMATION SOURCE: GUAM MWO. GOES 9 IMAGERY. GFS MODEL WINDS
FORECAST.

ERUPTION DETAILS: ASH AND GAS EMISSIONS SINCE MAY 10.

OBS ASH DATE/TIME: 06/0925Z.

OBS ASH CLOUD: SFC/FL080 10 NM WIDE LINE OF ASH EXTENDING BETWEEN
N1621E14540 N1615E14433. ASH IS MOVING W 15 KNOTS. 

FCST ASH CLOUD +6H: SEE SIGMETS

REMARKS: A VERY FAINT ASH PLUME CAN BE SEEN IN GOES 9 VISIBLE
IMAGERY. IN GOES 9 IMAGERY THE PLUME APPEARS TO BE 10 NM WIDE AND
AT LEAST 65 NM LONG.  THE GUAM MWO REPORTS THAT THE 0751Z DMSP
IMAGE REVEALS AN EVEN LONGER PLUME EXTENDING FROM THE VOLCANO TO
AT LEAST 1620N14403E.  AN ASH PLUME OBSERVATION IN A RECENT PILOT
REPORT INDICATES A WIDER PLUME...ABOUT 30 NM WIDE. 

NEXT ADVISORY: WILL BE ISSUED BY 2003JUL06/1630Z.

NNNN"Attached Graphic Map Depicting Ash Only" 

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