FVXX23 KNES 122003 CCA VOLCANIC ASH ADVISORY -CORRECTION ISSUED: 20070312/2002Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/077 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. ERUPTION DETAILS: ONGOING EMISSIONS. OBS ASH DATE/TIME: 12/1845Z OBS ASH CLOUD: FL100/320 S0123 W07852 - S0128 W07828 - S0129 W07828 - S0134 W07850 - S0123 W07852 MOVING W 10-15 KNOTS. FCST ASH CLOUD +6H: 13/0100Z FL100/320 S0119 W07854 - S0128 W07828 - S0133 W07850 - S0119 W07854 FCST ASH CLOUD +12H: 13/0700Z ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL320 MOVING TO W 10-15 KNOTS. FCST ASH CLOUD +18H: 13/1300Z ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL320 MOVING TO W 10 KNOTS. REMARKS: ...CORRECTION TO HEIGHT DUE TO PILOT REPORT AT 1932Z....A WEAK HOTSPOT WAS OBSERVED AT THE SUMMIT ON THE 1845Z MULTISPECTRAL IMAGERY. CURRENT VISIBLE IMAGERY SHOWS AN ILL-DEFINED AREA OF ASH EXTENDING ABOUT 15-20 NMI TO THE WEST OF THE VOLCANO. THIS PLUME MAY NOT BE SEEN AFTER DARK DUE TO CLOUDS IN THE REGION AND BECAUSE IT IS NOT SEEN ON THE MULTISPECTRAL IMAGERY. ...BANKS NEXT ADVISORY: WILL BE ISSUED BY 20070313/0200Z