Subject: FVAG01 SABM 311630 FVAG01 SABM 311630 VOLCANIC ASH ADVISORY ISSUED: 2008 07 31 / 1630Z VAAC: BUENOS AIRES VOLCANO: CHAITEN 1508-41 LOCATION: S4250 W07239 AREA: CHILE-S SUMMIT ELEVATION: 962M ADVISORY NUMBER: 2008/0268 INFORMATION SOURCE: SIGMET 03 SCTZ- PUERTO MONTT FIR CC-CMY AVIATION COLOR CODE: ERUPTION DETAILS: CONTINUOUS EMISSION OBS ASH DATE/TIME: 31/1318Z OBS ASH CLOUD: VA CLD OBS AT 1318Z TOP ETI FL100 MOV NE FCST ASH CLD + 06HR: 311900Z SFC/FL200 S4200 W07100 - S4300 W07300 - S4130 W07300 - S4200 W07100 FL200/350 NO ASH EXP FL350/550 NO ASH EXP FCST ASH CLD + 12HR: NIL FCST ASH CLD + 18HR:NIL NEXT ADVISORY: FURTHER INFORMATION WILL BE ISSUED IF ANY ASH CLD IS DETECTED/OBSERVED REMARKS: VA CLD IDENTIFIABLE FROM GOES 12 SATELLITE IMAGERY 13:39ZMOVING TO NE AND WEB CAM  .