FVXX21 KNES 230842 VA ADVISORY DTG: 20071223/0837Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2007/937 INFO SOURCE: GOES-12. GFS WINDS. GEOPHYSICAL INST. SIGMET ERUPTION DETAILS: ONGOING EMISSIONS OBS VA DTG: 23/0815Z OBS VA CLD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/180 MOVING FROM SE 5-15 KNOTS. FL190/240 MOVING FROM E 15-25 KNOTS. FCST VA CLD +6HR: 23/1000Z FCST VA CLD +12HR: 23/1600Z FCST VA CLD +18HR: 23/2200Z RMK: GEOPHYSICAL INST REPORTS STILL INDICATE POTENTIAL HEIGHTENED ACTIVITY. NO ASH IS SEEN IN IMAGERY BUT LOW WEATHER CLOUDS COULD BE HINDERING DETECTION. A FAIRLY BRIGHT HOTSPOT IS SEEN. A 22/2140Z PIREP RPTD FL230 ASH MOV W. NXT ADVISORY: WILL BE ISSUED BY 20071223/1430Z NNNN