FVXX20 KNES 271915 VOLCANIC ASH ADVISORY ISSUED: 20061227/1914Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL LOCATION: N1901 W09837 AREA: MEXICO SUMMIT ELEVATION: 17802 FT (5426 M) ADVISORY NUMBER: 2006/038 INFORMATION SOURCE: NOT AVBL ERUPTION DETAILS: NOT AVBL REMARKS: WE HAVE RECEIVED INFORMATION SUGGESTING A POSSIBLE VA EMISSION. WE WILL GATHER FURTHER INFORMATION AND ISSUE A FULL ADVISORY AS SOON AS POSSIBLE. NEXT ADVISORY: AS SOON AS POSSIBLE