FVXX21 KNES 270257 VA ADVISORY DTG: 20180127/0257Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2018/075 INFO SOURCE: GOES-EAST. GUAYAQUIL MWO. NWP MODELS. CIMSS VOLCAT. ERUPTION DETAILS: DISCRETE VA EMS OBS VA DTG: 27/0215Z OBS VA CLD: SFC/FL140 N0007 W07804 - N0004 W07759 - N0001 W07800 - N0002 W07805 - N0007 W07804 MOV W 10KT FCST VA CLD +6HR: 27/0830Z SFC/FL140 NO ASH EXP FCST VA CLD +12HR: 27/1430Z NO ASH EXP FCST VA CLD +18HR: 27/2030Z NO ASH EXPNO ASH EXP RMK: DISCRETE VA EM OBS IN STLT. LEADING EDGE EXTD 25 NM W OF THE SUMMIT THROUGH 0215Z AND QUICKLY BECOMING DIFF. EXPECTED TO DISSIPATE BY +6 HRS. ...RAMIREZ/ZHU NXT ADVISORY: WILL BE ISSUED BY 20180127/0900Z