Subject: FVAG01 SABM 040030 FVAG01 SABM 040030 VOLCANIC ASH ADVISORY ISSUED: 2008 08 04 / 0030Z VAAC: BUENOS AIRES VOLCANO: CHAITEN 1508-41 LOCATION: S4250 W07239 AREA: CHILE-S SUMMIT ELEVATION: 962M ADVISORY NUMBER: 2008/0275 INFORMATION SOURCE: SIGMET AND SATELLITE IMAGERY AVIATION COLOR CODE: ERUPTION DETAILS: CONTINUOUS EMISSION OBS ASH DATE/TIME: 02/1523Z OBS ASH CLOUD: VA CLD OBS AT 1523Z TOP FL150 MOV E/NE FCST ASH CLD + 06HR: 040400Z SFC/FL200 S4400 W07100 - S4000 W06700 - S4300 W06600 - S4600 W07000 - S4400 W07100 FL200/350 NO ASH EXP FL350/550 NO ASH EXP FCST ASH CLD + 12HR: 041000Z SFC/FL200 S4100 W06500 - S4300 W06400 - S4300 W06700 - S4100 W06500 FL200/350 NO ASH EXP FL350/550 NO ASH EXP FCST ASH CLD + 18HR: NIL NEXT ADVISORY: 04/0630Z REMARKS: VA CLD IDENTIFIABLE FROM GOES 12 SATELLITE IMAGERY  .