FVXX20 KNES 262000 VA ADVISORY DTG: 20130426/2000Z VAAC: WASHINGTON VOLCANO: SANGAY 1502-09 PSN: S0203 W07834 AREA: ECUADOR SUMMIT ELEV: 17158 FT (5230 M) ADVISORY NR: 2013/018 INFO SOURCE: GOES-13. ERUPTION DETAILS: BRIEF WEAK EMISSIONS AT 1200Z AND 1315Z. OBS VA DTG: 26/1945Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6H: FCST VA CLD +12H: FCST VA CLD +18H: RMK: VA OBSERVED EARLIER TODAY IN IMAGERY CAN NO LONGER BE SEEN. NXT ADVISORY: NO FURTHER ADVISORIES.