FVXX20 KNES 220755 VA ADVISORY DTG: 20181222/0755Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2018/1212 INFO SOURCE: GOES-EAST. VOLCANO WEB CAMERA. NWP MODELS. CIMSS VOLCAT. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 22/0730Z OBS VA CLD: SFC/FL150 S0000 W07806 - S0004 W07738 - S0005 W07739 - S0014 W07806 - S0000 W07806 MOV W 10KT FCST VA CLD +6HR: 22/1330Z SFC/FL150 N0001 W07814 - S0004 W07739 - S0005 W07738 - S0016 W07814 - N0001 W07814 FCST VA CLD +12HR: 22/1930Z SFC/FL150 NO ASH EXP FCST VA CLD +18HR: 23/0130Z NO ASH EXP RMK: DISCRETE VA EM OBS IN STLT IMAGERY MOV W FM SUMMIT AT FL150. NWP MODEL GUIDANCE AGREES WITH TRANSPORT. LTL CHG FCST. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20181222/1400Z