FVXX21 KNES 260351 VOLCANIC ASH ADVISORY ISSUED: 20070726/0345Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128 W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2007/448 INFORMATION SOURCE: GOES-12. GFS WINDS. GUAYAQUIL SIGMETS ERUPTION DETAILS: ONGOING ASH EMISSIONS OBS ASH DATE/TIME: 26/0315Z OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/250 MOVING TO W 20-25 KNOTS. FCST ASH CLOUD +6H: 26/0930Z FCST ASH CLOUD +12H: 26/1530Z FCST ASH CLOUD +18H: 26/2130Z REMARKS: SIGMETS INDICATE THAT IN THE PAST 12 HOURS THERE HAVE BEEN SEVERAL ASH OBSERVATIONS FROM BOTH GROUND OBSERVERS AND PILOTS RANGING FROM SUMMIT LEVEL ASH TO FL290. IN THE PAST FEW HOURS THE REPORTS HAVE BEEN BETWEEN FL200 AND FL250. NO ASH OR HOTSPOTS CAN BE SEEN IN SATELLITE IMAGERY THRU 0315Z ALTHOUGH LOW LEVEL WEATHER CLOUDS COULD BE HINDERING DETECTION. WESTWARD 20-25 KNOT WINDS BETWEEN FL100 AND FL250 IS EXPECTED TO CONTINUE OVER THE NEXT 18 HRS. ... NEXT ADVISORY: WILL BE ISSUED BY 20070726/0945Z