FVXX21 KWBC 011530 VOLCANIC ASH ADVISORY ISSUED 1530 UTC 01 SEP 2000 BY THE WASHINGTON VAAC . TUNGURAHUA 00-1024 ECUADOR 0128S 7826W . BACKGROUND: TUNGURAHUA ECUADOR (1502-08) SUMMIT HEIGHT 16480 FT (5023 M) . SOURCES OF INFORMATION: GOES-8 VISIBLE...INFRARED...AND MULTISPECTRAL IMAGERY. 01/1200 UTC UPPER WIND FORECAST FROM THE 01/0600 AVIATION MODEL. THE GEOPHYSICAL INSTITUTE IN QUITO. . ERUPTION DETAILS: CONTINUOUS GAS AND OCCASIONAL ASH EMISSIONS. . DETAILS OF ASH: GOES-8 IMAGERY THROUGH 1515 UTC SHOWS EXTENSIVE LOW AND MID LEVEL BROKEN CLOUDS OBSCURING THE VIEW OF THE VOLCANO. THE GEOPHYSICAL INSTITUTE REPORTS CONTINUED NEAR SUMMIT ACTIVITY. THIS ACTIVITY IS CONSISTENT WITH PREVIOUS ACTIVITY REPORTS OVER THE PAST FEW DAYS. . TRAJECTORY: UPPER AIR PATTERNS SUGGEST ANY ASH AT OR NEAR THE SUMMIT TO MOVE WEST SOUTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 01/2130 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