Subject: FVAG01 SABM 161200 FVAG01 SABM 161200 2009289 1203 VA ADVISORY DTG: 20091016/1200Z VAAC: BUENOS AIRES VOLCANO: CHAITEN 1508-41 PSN: S4250 W07239 AREA: CHILE-S SUMMIT ELEVATION: 962M ADVISORY NUMBER: 2009/166 INFORMATION SOURCE: GOES 12 ERUPTION DETAILS: OBS ASH DATE/TIME: 16/1139Z OBS ASH CLOUD: INFRARED HOTSPOT WINDS NW 15 KT FCST ASH CLD + 06HR: 161800z FCST ASH CLD + 12HR: 170000z FCST ASH CLD + 18HR: 170600z REMARKS: ASH IS NOT VISIBLE IN INFRARED IMAGERY. HOTSPOT IS SEEN IN INFRARED IMAGERY NEXT ADVISORY: 16/1800Z