FVXX21 KWBC 212145 VOLCANIC ASH ADVISORY ISSUED: 2001SEP21/2145 VAAC: WASHINGTON . VOLCANO: TUNGURAHUA 1502-08 LOCATION: 0128S 7826W AREA: ECUADOR . SUMMIT ELEVATION: 16480 FT (5023 M) . ADVISORY NUMBER: 2001/269 . INFORMATION SOURCE: GOES-8 VISIBLE...INFRARED AND MULTISPECTRAL IMAGERY. GEOPHYSICAL INSTITUTE. GUAYAQUIL METEOROLOGICAL WATCH OFFICE. WIND FORECAST FROM THE AVIATION MODEL. . ERUPTION DETAILS: ASH LAST REPORTED OVER VOLCANO AT 21/1825Z. . DETAILS OF ASH CLOUD: SATELLITE IMAGERY THROUGH 21/2115Z SHOWED THE AREA AROUND THE VOLCANO OBSCURED BY THICK CLOUDS MAKING THE DETECTION OF ANY ASH DIFFICULT. THE GEOPHYSICAL INSTITUTE REPORTED A PROBABLE VOLCANIC ASH CLOUD OVER THE VOLCANO AT 21/1825Z. NO HEIGHT WAS GIVEN BUT THE ASH HAD BEEN LIMITED TO BELOW FL200 IN ALL REPORTS RECEIVED DURING THE LAST 24 HOURS. . TRAJECTORY: ANY ASH THAT MIGHT EXIST UP TO FL250 WOULD MOVE TOWARDS THE WEST NORTHWEST AT 10 TO 16 KNOTS. . OUTLOOK: SEE SIGMETS. . THE NEXT ADVISORY WILL BE ISSUED BY 22/0400Z. . 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. . TURK . NNNN