FVXX21 KNES 190948 VA ADVISORY DTG: 20120919/0948Z VAAC: WASHINGTON VOLCANO: SHEVELUCH 1000-27 PSN: N5638 E16121 AREA: KAMCHATKA SUMMIT ELEV: 10771 FT (3283 M) ADVISORY NR: 2012/011 INFO SOURCE: GOES-15. MTSAT. GFS WINDS. HYSPLIT. ERUPTION DETAILS: ERUPTION AT 17/2319Z OBS VA DTG: 19/0930Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA. FCST VA CLD +6HR: 19/1530Z FCST VA CLD +12HR: 19/2130Z FCST VA CLD +18HR: 20/0330Z RMK: A VERY FAINT VA SIGNAL AT AN EXTREME VIEWING ANGLE FROM MTSAT BETWEEN 43N AND 47N ALONG 165W OVER THE CENTER OF THE CYCLONE IS SHEARING OUT QUICKLY BELOW MINIMUM CONSENTRATIONS. THIS FEATURE CANNOT BE TRACED IN GOES-WEST IMAGERY SINCE 0500Z. ...GALLINA NXT ADVISORY: NO FURTHER ADVISORIES NNNN