FVXX21 KNES 211852 VA ADVISORY DTG: 20190721/1852Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/790 INFO SOURCE: GOES-EAST. NWP MODELS. VOLCAT. ERUPTION DETAILS: NEW VA EMS OBS OBS VA DTG: 21/1826Z OBS VA CLD: SFC/FL160 S0000 W07802 - S0004 W07739 - S0010 W07802 - S0000 W07802 MOV W 20KT FCST VA CLD +6HR: 22/0030Z SFC/FL160 N0000 W07803 - S0004 W07739 - S0010 W07802 - N0000 W07803 FCST VA CLD +12HR: 22/0630Z SFC/FL160 NO ASH EXP FCST VA CLD +18HR: 22/1230Z NO ASH EXP RMK: NEW VA EMS OBS MOV W FM SUMMIT. VA FCST TO CONT W MOV THRU T+6HRS. ...FISHER NXT ADVISORY: WILL BE ISSUED BY 20190722/0045Z