FVXX21 KWBC 250830 VOLCANIC ASH ADVISORY ISSUED: 2001SEP25/0830Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/277 . INFORMATION SOURCE: GOES-8 INFRARED AND MULTISPECTRAL IMAGERY. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. GEOPHYSICAL INSTITUTE. UPPER WINDS FORECAST. . ERUPTION DETAILS: ASH REPORTED OVER THE VOLCANO AT 24/2001Z. . DETAILS OF ASH CLOUD: GOES-8 IMAGERY THROUGH 0815Z DOES NOT INDICATE THE PRESENCE OF ASH. THE LAST REPORT OF ASH HAS A HEIGHT ESTIMATE AT FL230. THE VOLCANO REMAINS IN AN ACTIVE STATE AND COULD PRODUCE ASH AT ANYTIME. . TRAJECTORY: UPPER PATTERNS SUGGEST ASH FROM SUMMIT LEVEL TO FL230 WOULD MOVE WEST NORTHWEST AT 10 TO 15 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 25/1430Z. . 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. . HUGHES . NNNN