FVXX20 KWBC 130927 VOLCANIC ASH ADVISORY ISSUED: 2004JAN13/0930Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 LOCATION: S0128W07826 AREA: ECUADOR SUMMIT ELEVATION: 16480 FT (5023 M) ADVISORY NUMBER: 2004/042 INFORMATION SOURCE: GOES-12 IMAGERY. GFS MODEL WINDS FORECAST. GUAYAQUIL MWO SIGMET. ERUPTION DETAILS: GAS AND ASH EMISSIONS. OBS ASH DATE/TIME: 13/0845Z. OBS ASH CLOUD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS FL100/200 VARIABLE LESS THAN 10 KNOTS. FCST ASH CLOUD+6H: NOT AVBL FCST ASH CLOUD+12H: NOT AVBL FCST ASH CLOUD+18H: NOT AVBL REMARKS: ASH IS NOT DETECTED IN INFRARED IMAGERY...HOWEVER THIN ASH PLUMES ARE OFTEN ONLY DETECTED IN HIGHER RESOLUTION VISIBLE IMAGERY. THUS WILL CONTINUE ADVISORY AT LEAST UNTIL VISIBLE IMAGERY BECOMES AVAILABLE LATER THIS MORNING. ANALYST...RUMINSKI NEXT ADVISORY: WILL BE ISSUED BY 2004JAN13/1530Z NNNN