FVXX20 KNES 070741 VA ADVISORY DTG: 20131007/0741Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2013/242 INFO SOURCE: GUAYAQUIL MWO. GOES-13. GFS WINDS. SEISMIC DETECTION. GEOPHYSICAL INST. ERUPTION DETAILS: EXPLOSION AT 0650Z OBS VA DTG: 07/0715Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL200 030/20KT FCST VA CLD +6HR: 07/1330Z FCST VA CLD +12HR: 07/1930Z FCST VA CLD +18HR: 08/0130Z RMK: GEOPHYSICAL INSTITUTE REPORTS AN EXPLOSION AT 0650Z WHICH IS DEPICTED IN SEISMIC DATA. STLT IMAGERY DOES NOT SHOW VA WITH MOSTLY CLEAR SKIES...SO VA IS LIKELY CONFINED TO NEAR SUMMIT AREA. ...RUMINSKI NXT ADVISORY: WILL BE ISSUED BY 20131007/1345Z