FVXX20 KNES 040633 VOLCANIC ASH ADVISORY ISSUED: 20070104/0632Z VAAC: WASHINGTON VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: N1642 W06210 AREA: W_INDIES SUMMIT ELEVATION: 3002 FT (915 M) ADVISORY NUMBER: 2007/015 INFORMATION SOURCE: GOES-12. GFS WINDS. MONTSERRAT OBSERVATORY. ERUPTION DETAILS: ONGOING ASH AND STEAM EMISSIONS OBS ASH DATE/TIME: 04/0545Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL100 MOVING TO W 20 KNOTS. FCST ASH CLOUD +6H: 04/1200Z FCST ASH CLOUD +12H: 04/1800Z FCST ASH CLOUD +18H: 05/0000Z REMARKS: ASH IS NOT DISCERNABLE IN INFRARED OR MULTISPECTRAL IMAGERY..HOWEVER CLOUDS ARE HINDERING ASH DETECTION. THE MONTSERRAT VOLCANO OBSERVATORY INDICATED THERE WAS A PYROCLASTIC FLOW AT AROUND 0330Z. BASED ON THIS INFORMATION AND THE LATEST GFS MODEL SOUNDINGS THE HEIGHT OF POSSIBLE ASH IS RAISED TO FL100. ...RUMINSKI NEXT ADVISORY: WILL BE ISSUED BY 20070104/1230Z