FVXX21 KWBC 190700 VOLCANIC ASH ADVISORY ISSUED: 2001JUN19/0045Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/170 . INFORMATION SOURCE: MONTSERRAT VOLCANO OBSERVATORY...GOES-8 VISIBLE...INFRARED SHORTWAVE AND MULTISPECTRAL IMAGERY. . ERUPTION DETAILS: CONTINUOUS LOW-LEVEL ASH EMISSIONS . DETAILS OF ASH CLOUD: NO ASH WAS DETECTED IN SATELLITE IMAGERY THROUGH 0615Z. THE WELL DEFINED HOTSPOT NOTED EARLIER IN SHORTWAVE IMAGERY WAS NO LONGER APPARENT. YESTERDAY THE MONTSERRAT VOLCANO OBSERVATORY REPORTED MODERATE ROCKFALL ACTIVITY PRODUCING ASH TO APPROXIMATELY FL070. SUCH LOW LEVEL PLUMES ARE SELDOM DETECTABLE AT NIGHT. . TRAJECTORY: ANY ASH FROM THE SUMMIT TO FL070 WOULD MOVE TOWARDS THE WEST AT 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 19/1300Z. . REAL TIME SATELLITE IMAGERY AND VOLCANIC ASH ADVISORIES OFTEN ACCOMPANIED BY A MAP DEPICTING ASH LOCATION ARE AVAILABLE AT INTERNET URL ADDRESS HTTP://WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWER CASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . TURK . NNNN