FVXX20 KNES 230702
VOLCANIC ASH ADVISORY
ISSUED: 2005OCT23/0658Z   VAAC: WASHINGTON

VOLCANO: NEGRA, SIERRA 1503-05
LOCATION: S0049 W09110   AREA: GALAPAGOS

SUMMIT ELEVATION: 4888 FT (1490 M)

ADVISORY NUMBER: 2005/003

INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS
MODEL WINDS. GEOPHYSICAL INST. VAFTAD. 

ERUPTION DETAILS: LARGE ERUPTION AT 22/2245Z

OBS ASH DATE/TIME: 23/0615Z

OBS ASH CLOUD: SFC/FL420 S0043 W09110 - S0101
W09111 - S0146 W09325 - S0301 W09532 - S0115
W09511 - S0051 W09329 - S0043 W09110 MOVING SW
25-30 KNOTS. 

FCST ASH CLOUD +6H: 23/1230Z SFC/FL420 S0043
W09110 - S0104 W09110 - S0201 W09341 - S0404
W09632 - S0241 W09635 - S0050 W09510 - S0050
W09341 - S0043 W09110 

FCST ASH CLOUD +12H: 23/1830Z SFC/FL420 S0043
W09110 - S0105 W09109 - S0231 W09346 - S0513
W09455 - S0559 W09735 - S0325 W09714 - S0050
W09511 - S0046 W09401 - S0043 W09110 

FCST ASH CLOUD +18H: 24/0030Z SFC/FL420 S0043
W09116 - S0105 W09109 - S0239 W09346 - S0722
W09532 - S0713 W09753 - S0323 W09709 - S0059
W09505 - S0043 W09116 

REMARKS: ASH CONTINUES TO MOVE TOWARD THE SW AT
25-30 KNOTS BUT IS NOW ESTIMATED TO FL420.  THE
ASH SIGNATURE ON SATELLITE IMAGERY IS NOT AS WELL
DEFINED AS A FEW HOURS AGO.    A WELL DEFINED
HOTSPOT CONTINUES TO BE VISIBLE IN MULTI-SPECTRAL
IMAGERY. ...KIBLER

NEXT ADVISORY: WILL BE ISSUED BY 2005OCT23/1300Z

NNNN
Full Size Graphic


-