Subject: FVAG01 SABM 310830 FVAG01 SABM 310830 VOLCANIC ASH ADVISORY ISSUED: 2008 07 31 / 0830Z VAAC: BUENOS AIRES VOLCANO: CHAITEN 1508-41 LOCATION: S4250 W07239 AREA: CHILE-S SUMMIT ELEVATION: 962M ADVISORY NUMBER: 2008/0267 INFORMATION SOURCE: SIGMET AVIATION COLOR CODE: ERUPTION DETAILS: CONTINUOUS EMISSION OBS ASH DATE/TIME: 30/1821Z OBS ASH CLOUD: VA CLD OBS AT 1821Z TOP BTN FL060/065 MOV E FCST ASH CLD + 06HR: 311200Z SFC/FL200 S4300 W07230 - S4230 W07300 - S4130 W07200 - S4130 W07130 - S4300 W07230 FL200/350 NO ASH EXP FL350/550 NO ASH EXP FCST ASH CLD + 12HR: 311800Z SFC/FL200 S4300 W07230 - S4230 W07300 - S4200 W07200 - S4300 W07230 FL200/350 NO ASH EXP FL350/550 NO ASH EXP FCST ASH CLD + 18HR:NIL NEXT ADVISORY: 31/1430 REMARKS: VA CLD NOT IDENTIFIABLE FROM GOES 12 SATELLITE IMAGERY  .