FVXX21 KNES 031858 VA ADVISORY DTG: 20080803/1857Z VAAC: WASHINGTON VOLCANO: TUNGURAHUA 1502-08 PSN: S0128 W07826 AREA: ECUADOR SUMMIT ELEV: 16480 FT (5023 M) ADVISORY NR: 2008/662 INFO SOURCE: GOES-12. GFS WINDS. SEISMIC DETECTION. ERUPTION DETAILS: ONGOING EMISSION OF GASES AND OCNL LGT ASH OBS VA DTG: 03/1815Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS FL100/FL250 110/15KT FCST VA CLD +6HR: 04/0030Z FCST VA CLD +12HR: 04/0630Z FCST VA CLD +18HR: 04/1230Z RMK: THE PREVIOUS PLUME DISSIPATED AS IT MOVD W. CURRENTLY NO VA DETECTED DUE TO CLOUDS. ONCL SMALL SEISMIC SIGNALS MAY INDICATE ONCL SMALL EMISSIONS OF VA WITHIN GAS PLUME. ...SWANSON NXT ADVISORY: WILL BE ISSUED BY 20080804/0100Z NNNN