FVXX21 KNES 310113 VOLCANIC ASH ADVISORY ISSUED: 20070731/0112Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/469 INFORMATION SOURCE: GUAYAQUIL MWO. GOES-12. GFS WINDS. GEOPHYSICAL INST. METAR. PILOT REPORT. ERUPTION DETAILS: ASH OBSERVED 31/0015Z OBS ASH DATE/TIME: 31/0045Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/FL230 MOVING TO W 10 KNOTS. FCST ASH CLOUD +6H: 31/0700Z NOT AVBL. FCST ASH CLOUD +12H: 31/1300Z NOT AVBL. FCST ASH CLOUD +18H: 31/1900Z NOT AVBL. REMARKS: ALTHOUGH SATELLITE IMAGERY DOES NOT SHOW ASH AT 0045Z THERE HAVE BEEN OCCASIONAL EXHALATIONS THAT HAVE MOVED TO THE WEST SOUTHWEST FOR APPROXIMATELY 30 NMI BEFORE DISSIPATING. OVER THE LAST 4 HOURS THERE HAVE BEEN REPORTS OF ASH RANGING FROM FL190 TO FL250 FROM PILOTS...SURFACE STATIONS AND...MOST RECENTLY...FROM THE GEOPHYSICAL INSTITUTE. ...TURK NEXT ADVISORY: WILL BE ISSUED BY 20070731/0715Z