FVXX20 KNES 280411 VOLCANIC ASH ADVISORY ISSUED: 2005OCT28/0410Z VAAC: WASHINGTON VOLCANO: NEGRA, SIERRA 1503-05 LOCATION: S0049 W09109 AREA: GALAPAGOS SUMMIT ELEVATION: 4888 FT (1490 M) ADVISORY NUMBER: 2005/025 INFORMATION SOURCE: GOES-12. GFS MODEL WINDS. ERUPTION DETAILS: ONGOING EMISSIONS SINCE 22/2330Z OBS ASH DATE/TIME: 28/0315Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL150 MOVING TO SW 5-10 KNOTS. FCST ASH CLOUD +6H: 28/0930Z FCST ASH CLOUD +12H: 28/1530Z FCST ASH CLOUD +18H: 28/2130Z REMARKS: ASH AND GAS EMISSIONS ARE NO LONGER SEEN IN SATELLITE IMAGERY AFTER SUNSET. THE LAST VISIBLE IMAGES DEPICTED ASH FANNING OUT FROM THE SUMMIT CLOCKWISE FROM SOUTHWEST TO NORTHWEST OF THE VOLCANO. MODEL FORECAST WINDS INDICATE ASH WOULD MOVE TO THE SOUTH..HOWEVER BASED ON LATEST OBSERVED PLUME FEEL THAT ASH WILL MOVE TOWARD THE SOUTHWEST AT 5-10 KNOTS. ...RUMINSKI NEXT ADVISORY: WILL BE ISSUED BY 2005OCT28/1015Z NNNN