FVXX22 KWBC 062155 VOLCANIC ASH ADVISORY ISSUED: 2003JUL06/2200Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2003/236 INFORMATION SOURCE: GUAM MWO. GOES 9 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH AND GAS EMISSIONS SINCE MAY 10. OBS ASH DATE/TIME: 06/2102Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL080 MOVING W-SW 10-15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: ASH COULD NOT BE OBSERVED IN SATELLITE IMAGERY THROUGH 2102Z DUE TO BROKEN CLOUD COVER OVER THE VOLCANO. EXPECT CONTINUED ACTIVITY OF FAINT LOW LEVEL PLUME MOVING SOUTHWEST TO WEST FROM THE SUMMIT BELOW FL080. NEXT ADVISORY: WILL BE ISSUED BY 2003JUL07/0400Z. NNNN