FVXX21 KNES 241709 VOLCANIC ASH ADVISORY ISSUED: 2005SEP24/1709Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1643W06211 AREA: W_INDIES SUMMIT ELEVATION: 3002 FT (915 M) ADVISORY NUMBER: 2005/175 INFORMATION SOURCE: GOES-12. GFS MODEL WINDS. ERUPTION DETAILS: ASH EMISSIONS BEGINNING ABOUT 24/1015Z OBS ASH DATE/TIME: 24/1645Z OBS ASH CLOUD: SFC/FL070 5NM WIDE LINE BETWEEN N1645W06229 - N1642W06210. ASH IS MOVING W 5-10 KNOTS. SFC/FL090 N1840W06355 - N1738W06304 - N1713W06253 - N1711W06240 - N1701W06237 - N1708W06253 - N1638W06312 - N1747W06434 - N1840W06355 MOVING NW 5-10 KNOTS. FCST ASH CLOUD +6H: 24/2300Z SFC/FL070 5NM WIDE LINE BETWEEN N1642W06210 - N1629W06254. SFC/FL090 N1841W06334 - N1746W06252 - N1717W06351 - N1825W06424 - N1841W06334 FCST ASH CLOUD +12H: 25/0500Z SFC/FL070 5NM WIDE LINE BETWEEN N1642W06210 - N1631W06253. SFC/FL090 N1922W06402 - N1911W06241 - N1808W06248 - N1813W06410 - N1922W06402 FCST ASH CLOUD +18H: 25/1100Z SFC/FL070 5NM WIDE LINE BETWEEN N1638W06253 - N1641W06211. SFC/FL090 NO ASH EXP. REMARKS: AN AREA OF MODERATELY THIN ASH TO ABOUT FL090 HAS DETACHED FROM THE VOLCANO AND IS MOVING TOWARD THE NORTHWEST. IN 12 HOURS IT IS EXPECTED TO MOVE MORE TOWARD THE NORTHEAST AND DISSIPATE BY 18 HOURS. IN ADDITION THERE IS A SMALL PLUME BELOW ABOUT FL070 THAT EXTENDS FROM THE SUMMIT TOWARD THE WEST. ... NEXT ADVISORY: WILL BE ISSUED BY 2005SEP24/2315Z NNNN