FVXX20 KWBC 041048 VOLCANIC ASH ADVISORY ISSUED: 2003JUL04/1100Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: CARIBBEAN SUMMIT ELEVATION: 3000 FT (915 M) ADVISORY NUMBER: 2003/573 INFORMATION SOURCE: GOES-12 IMAGERY. MONTSERRAT VOLCANO OBSERVATORY. ERUPTION DETAILS: ASH OBSERVED AT 03/2300Z. OBS ASH DATE/TIME: NIL OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. FCST ASH CLOUD +6H: SEE SIGMETS. REMARKS: THE MONTSERRAT VOLCANO OBSERVATORY REPORTS THAT SEISMIC ACTIVITY REMAINS HIGH. THEY DO NOT OBSERVE ANY ASH BEING EMITTED FROM THE VOLCANO AT THIS TIME. IN ADDITION ASH CAN NOT BE DETECTED IN SATELLITE IMAGERY. NEXT ADVISORY: NO FURTHER ADVISORIES NNNN