FVXX20 KNES 201846 VA ADVISORY DTG: 20111120/1846Z VAAC: WASHINGTON VOLCANO: SANGAY 1502-09 PSN: S0201 W07820 AREA: ECUADOR SUMMIT ELEV: 17159 FT (5230 M) ADVISORY NR: 2011/021 INFO SOURCE: GOES-13. PILOT REPORT. ERUPTION DETAILS: POSSIBLE ERUPTION AT 1230Z OBS VA DTG: 20/1815Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: 21/0030Z FCST VA CLD +12HR: 21/0630Z FCST VA CLD +18HR: 21/1230Z RMK: NO VA HAS BEEN OBSERVED THROUGH 1815Z UNDER PARTLY CLOUDY SKIES ...GUILLOT NXT ADVISORY: NO FURTHER ADVISORIES NNNN