FVXX21 KWBC 051930 VOLCANIC ASH ADVISORY ISSUED 1930 UTC 05 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1041 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY. 05/1800 UTC UPPER WINDS FORECAST FROM THE 05/1200 UTC AVIATION MODEL. . ERUPTION DETAILS: CONTINUOUS GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 1915 UTC SHOWS BROKEN MID AND HIGH LEVEL CLOUDS THAT ARE OBSCURING THE VIEW OF THE VOLCANO. GROUND OBSERVATIONS OF THE VOLCANO ARE ALSO OBSCURED. THE VOLCANO REMAINS ACTIVE WITH OCCASIONAL GAS AND ASH EMISSIONS. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR NEAR SUMMIT LEVEL TO MOVE WEST SOUTHWEST AT 5 TO 10 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 06/0130 UTC. . 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