FVXX22 KWBC 221300 VOLCANIC ASH ADVISORY ISSUED: 2003JUN22/1300Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2003/178 INFORMATION SOURCE: GOES-9 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: CONTINUOUS ASH AND GAS EMISSIONS SINCE MAY 10. OBS ASH DATE/TIME: 22/1225Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL080 MOVING WEST 10-15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: SATELLITE IMAGERY THROUGH 22/0625Z SHOWS EXTENSIVE CLOUDS IN THE AREA OBSCURING ANY ASH THAT MAY BE PRESENT. NEXT ADVISORY: WILL BE ISSUED BY 2003JUN22/1900Z. NNNN