FVXX22 KWBC 080947 VOLCANIC ASH ADVISORY ISSUED: 2003JUL08/1000Z VAAC: WASHINGTON VOLCANO: ANATAHAN 0804-20 LOCATION: N1621E14540 AREA: MARIANA ISLANDS SUMMIT ELEVATION: 2585 FT (788 M) ADVISORY NUMBER: 2003/242 INFORMATION SOURCE: GOES 9 IMAGERY. GFS MODEL WINDS FORECAST. ERUPTION DETAILS: ASH AND GAS EMISSIONS SINCE MAY 10. OBS ASH DATE/TIME: 08/0902Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL080 MOVING W 15 KNOTS. FCST ASH CLOUD +6H: SEE SIGMETS REMARKS: IN THE PAST FEW DAYS A FAINT ASH PLUME THAT EXTENDS FROM THE SUMMIT TO THE WEST HAS SOMETIMES BEEN SEEN IN VISIBLE SATELLITE IMAGERY. HOWEVER ANY SUCH PLUME IS NOW TOO FAINT TO SEE IN GOES 9 VISIBLE IMAGERY THROUGH 0802Z OR INFRARED IMAGERY THROUGH 0902Z. NEXT ADVISORY: WILL BE ISSUED BY 2003JUL08/1600Z. NNNN