FVXX20 KWBC 031200 VOLCANIC ASH ADVISORY ISSUED: 2001APR03/1200 VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/50 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE IN QUITO. 03/1200Z UPPER AIR WINDS FORECAST FROM THE 03/0600Z UTC AVIATION MODEL. . ERUPTION DETAILS: EMISSION AT 02/2246Z. . DETAILS OF ASH CLOUD: THE GEOPHYSICAL INSTITUTE IN QUITO REPORTS LITTLE ACTIVITY WITH NO SIGNIFICANT ASH EMISSIONS SINCE THE EMISSION AT 02/2246Z. THE VOLCANO REMAINS IN A RELATIVELY ACTIVE STATE AND COULD PRODUCE ASH EMISSIONS ANYTIME. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH FROM SUMMIT TO FL200 WOULD MOVE WEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THIS WILL BE THE LAST MESSAGE ISSUED FOR THIS EVENT. . 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. . HUGHES . NNNN