FVXX23 KWBC 100730 VOLCANIC ASH ADVISORY ISSUED 0730 UTC 10 AUG 2000 BY THE WASHINGTON VAAC . SOUFRIERE HILLS 00-131 WEST INDIES 1643N 6211W . BACKGROUND: SOUFRIERE HILLS MONTSERRAT (1600-05) SUMMIT HEIGHT 3000 FT (915M) . SOURCES OF INFORMATION: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. WIND FORECAST FROM AVIATION MODEL. PIARCO METEOROLOGICAL WATCH OFFICE SIGMET . ERUPTION DETAILS: NEARLY CONTINUOUS ASH AND STEAM EMISSIONS. . DETAILS OF ASH CLOUD: NO ASH CAN BE SEEN IN MULTISPECTRAL OR INFRARED SATELLITE IMAGERY THROUGH 10/0645 UTC. HOWEVER POSSIBLE ASH TO FL050 WAS SEEN IN THE LAST VISIBLE IMAGES OF AUGUST 9. THIS LOW LEVEL ASH WOULD BE VERY DIFFICULT TO SEE IN MULTISPECTRAL OR INFRARED IMAGERY SO BASED SOLELY ON THIS IMAGERY WE CANNOT CONCLUDE THAT THE ASH HAS NECESSARILY DISSIPATED. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST THAT IF THERE IS ANY ASH BETWEEN THE SUMMIT AND FL050 IT WOULD MOVE TOWARD THE WEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT STATEMENT WILL BE ISSUED BY 10/1330 UTC. . REAL TIME SATELLITE IMAGERY ALONG WITH THIS AND OTHER 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. . NNNN