FVXX22 KWBC 030800 VOLCANIC ASH ADVISORY ISSUED: 2003JUL03/0800Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2003/221 INFORMATION SOURCE: GOES 9 IMAGERY. GUAM MWO. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH AND GAS EMISSIONS SINCE MAY 10. OBS ASH DATE/TIME: 03/0625Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL080 MOVING W 15 - 20 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: ASH CAN NOT BE DETECTED IN SATELLITE IMAGERY THROUGH 03/0625Z. NEXT ADVISORY: WILL BE ISSUED BY 2003JUL03/1400Z. NNNN