FVXX22 KWBC 101248 VOLCANIC ASH ADVISORY ISSUED: 2003JUL10/1300Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2003/251 INFORMATION SOURCE: GOES 9 IMAGERY. GFS MODEL WINDS FORECAST ERUPTION DETAILS: ASH AND GAS EMISSIONS SINCE MAY 10. OBS ASH DATE/TIME: 09/1202Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL080 MOVING SW 10-15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: THE ASH PLUME OBSERVED IN VISIBLE IMAGERY IS TOO THIN AND DIFFUSE TO BE SEEN IN INFRARED AND MULTISPECTRAL IMAGAERY. ANY ASH UP TO FL080 SHOULD MOVE TOWARDS THE SW AT 10-15 KNOTS. NEXT ADVISORY: WILL BE ISSUED BY 2003JUL10/1900Z. NNNN