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

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