FVXX20 KNES 210956 VA ADVISORY DTG: 20181221/0956Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2018/1208 INFO SOURCE: GOES-EAST. VOLCANO WEB CAMERA. NWP MODELS. CIMSS VOLCAT. ERUPTION DETAILS: PSBL ONGOING VA EMS OBS VA DTG: 21/0930Z OBS VA CLD: SFC/FL170 S0004 W07739 - S0005 W07739 - S0022 W07813 - S0007 W07815 - S0004 W07739 MOV W 15KT FCST VA CLD +6HR: 21/1530Z SFC/FL170 NO ASH EXP FCST VA CLD +12HR: 21/2130Z NO ASH EXP FCST VA CLD +18HR: 22/0330Z NO ASH EXP RMK: VA NOT IDENTIFIABLE IN STLT IMAGERY OR WEBCAM DUE TO WX CLDS. NWP MODEL GUIDANCE SUGGEST WINDS FM THE EAST LTL CHG FCST. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20181221/1600Z