FVXX20 KNES 311054 VA ADVISORY DTG: 20130731/1054Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2013/234 INFO SOURCE: GOES-13. GFS WINDS. SEISMIC DETECTION. ERUPTION DETAILS: ONGOING EMISSIONS OBS VA DTG: 31/1015Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL220 090/10-20KT FL220/FL250 070/5-10KT FCST VA CLD +6HR: 31/1630Z FCST VA CLD +12HR: 31/2230Z FCST VA CLD +18HR: 01/0430Z RMK: NO VA IS SEEN IN NIGHTIME IMAGERY ALTHOUGH THERE ARE EXTENSIVE WX CLOUDS PRESENT. THE VOLCANO IS SEISMICALLY ACTIVE. ...SCHWARTZ NXT ADVISORY: WILL BE ISSUED BY 20130731/1700Z