FVXX20 KNES 170923 VOLCANIC ASH ADVISORY ISSUED: 20070317/0922Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643 W06210 AREA: W_INDIES SUMMIT ELEVATION: 3002 FT (915 M) ADVISORY NUMBER: 2007/235 INFORMATION SOURCE: GOES-12. GFS WINDS. ERUPTION DETAILS: ONGOING ASH EMISSIONS OBS ASH DATE/TIME: 17/0845Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL080 MOVING TO NW 10-15 KNOTS. FCST ASH CLOUD +6H: 17/1500Z FCST ASH CLOUD +12H: 17/2100Z FCST ASH CLOUD +18H: 18/0300Z REMARKS: NO ASH HAS BEEN SEEN IN IMAGERY SINCE VISIBLE SATELLITE IMAGERY BECAME UNAVAILABLE AT NIGHTFALL AND THE ASH IS TOO LOW AND THIN TO SEE IN INFRARED IMAGERY. WIND PATTERNS SUGGEST THAT IF AN ASH PLUME EXISTS IT IS LIKELY TO EXTEND FROM THE SUMMIT TOWARD THE NORTHWEST OR WEST NORTHWEST. IN 18 HOURS THE PLUME IS EXPECTED TO EXTEND ALMOST DUE WEST. ... NEXT ADVISORY: WILL BE ISSUED BY 20070317/1515Z