FVXX21 KWBC 251815 VOLCANIC ASH ADVISORY ISSUED: 2001SEP25/1815Z VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/279 . INFORMATION SOURCE: GOES-8 VISIBLE INFRARED AND MULTISPECTRAL IMAGERY. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. UPPER WINDS FORECAST. . ERUPTION DETAILS: ASH REPORTED OVER THE VOLCANO AT 25/1730Z. . DETAILS OF ASH CLOUD: THE GUAYAQUIL MWO REPORTS ASH OVER THE SUMMIT AT 25/1730 TO FL320. GOES8 IMAGERY THROUGH 1745Z DOES NOT INDICATE THE PRESENCE OF ASH BUT ASH MIGHT BE OBSCURED BY THE WEATHER CLOUDS IN THE AREA.. . TRAJECTORY: UPPER PATTERNS SUGGEST THAT ASH AT FL320 WOULD MOVE WEST AT 15 TO 20 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 26/0000Z. . 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. . NNNN