FVXX20 KWBC 070400 VOLCANIC ASH ADVISORY ISSUED: 2001OCT07/0400Z VAAC: WASHINGTON . VOLCANO: SOUFRIERE HILLS 1600-05 LOCATION: 1643N 6211W AREA: CARIBBEAN . SUMMIT ELEVATION: 3000 FT (915 M) . ADVISORY NUMBER: 2001/238 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. 00Z GUADELOUPE UPPER LEVEL SOUNDING. MONTSERRAT VOLCANO OBSERVATORY . ERUPTION DETAILS: OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH CLOUD: IT IS DIFFICULT TO DETECT A LOW LEVEL ASH PLUME FROM SOUFRIERE HILLS USING INFRARED SATELLITE DATA. THE LAST VISIBLE PICTURE ENDING AT 2115Z DID SHOW A FAINT ASH PLUME EXTENDING TO THE WEST AT FL060. . TRAJECTORY: ASH AT FL060 WILL MOVE TOWARDS THE WEST AT ABOUT 20 KNOTS. OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 07/1000Z. . INTERNET URLS... MESSAGE LISTSERV WWW.SSD.NOAA.GOV/VAAC/SUBSCRIBE.HTML MESSAGES GRAPHICS AND IMAGERY WWW.SSD.NOAA.GOV/VAAC/WASHINGTON.HTML (ALL LOWERCASE EXCEPT /VAAC/) . PLEASE REFER TO SIGMETS FOR CURRENT WARNINGS. . KARST . NNNN