FVXX20 KWBC 300310 VOLCANIC ASH ADVISORY ISSUED: 2001JUL30/0310Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/188 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL SATELLITE IMAGERY. MONTSERRAT VOLCANO OBSERVATORY (MVO). 00Z UPPER AIR SOUNDING FROM GUADELOUPE. . ERUPTION DETAILS: INCREASED ASH AND SEISMIC ACTIVITY. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 30/0245Z IS INCONCLUSIVE DUE TO CONTINUED CONVECTIVE ACTIVITY ASSOCIATED WITH A TROPICAL WAVE CROSSING THE ISLAND. REPORTS FROM THE MONTSERRAT VOLCANO OBSERVATORY INDICATE THAT LARGE AMOUNTS OF ASH ARE BEING VENTED FROM THE VOLCANO. THE MVO ALSO REPORTS THAT THE ASH MAY BE REACHING UP TO FL200. HOWEVER THEY ARE HAVING DIFFICULTY SEEING THE VOLCANO DUE TO TORRENTIAL RAINS. THE AREAL EXTENT OF THE ASH IS NOT KNOWN WITH CERTAINTY AT THIS TIME. . TRAJECTORY: ANY ASH BELOW FL100 WOULD MOVE TOWARD THE WEST AT 20 TO 30 KNOTS. ASH BETWEEN FL100 AND FL200 WOULD MOVE TOWARD THE NORTHWEST AT 30 TO 35 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 30/0800Z. . 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. . RUMINSKI . NNNN