FVXX20 KNES 181438 VOLCANIC ASH ADVISORY ISSUED: 2005OCT18/1438Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 1402-03 LOCATION: N1446 W09133 AREA: GUATEMALA SUMMIT ELEVATION: 12375 FT (3772 M) ADVISORY NUMBER: 2005/11 INFORMATION SOURCE: GOES-12. GFS MODEL WINDS. PILOT REPORT. ERUPTION DETAILS: ERUPTION AROUND 1300Z. OBS ASH DATE/TIME: 18/1345Z OBS ASH CLOUD: SFC/FL150 12NM WIDE LINE BETWEEN N1443 W09132 - N1413 W09209. ASH IS MOVING SW 15 KNOTS. FCST ASH CLOUD +6H: 18/2000Z FCST ASH CLOUD +12H: 19/0200Z FCST ASH CLOUD +18H: 19/0800Z REMARKS: A PILOT REPORTED AN EUPTION IN GUATEMALA. LOOKING AT THE FIRST VIS IMAGERY OF THE DAY A SMALL PUFF EMISSION COULD BE SEEN FROM SANTA MARIA VOLCANO MOVING SOUTHWEST. THERE ALSO APPEARS TO BE SOME RESIDUAL EMISSON FROM A PREVIOUS ERUPTION THAT EXTENDED ALSO SOUTHWEST BUT OUT TO AND OFF THE COAST. THE TOTAL AREA OF BOTH EMISSIONS IS AROUND 55 NM LONG AND 12 NM WIDE. ...SWANSON NEXT ADVISORY: WILL BE ISSUED BY 2005OCT18/1500Z NNNN