FVXX20 KNES 071921 VA ADVISORY DTG: 20190507/1921Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0005 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/503 INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: POSS VA EM OBS VA DTG: 07/1900Z OBS VA CLD: SFC/FL160 S0002 W07812 - S0006 W07801 - S0013 W07801 - S0018 W07814 - S0015 W07822 - S0007 W07822 - S0002 W07812 MOV W 20KT FCST VA CLD +6HR: 08/0100Z SFC/FL160 S0002 W07812 - S0006 W07759 - S0013 W07759 - S0020 W07811 - S0019 W07826 - S0006 W07826 - S0002 W07812 FCST VA CLD +12HR: 08/0700Z SFC/FL160 NO ASH EXP FCST VA CLD +18HR: 08/1300Z NO ASH EXP RMK: VA CLD SEEN IN STLT IMAGERY 30 NMI W OF SUMMIT FL160. FCST T+06 HRS BASED ON NWP MODEL GUIDANCE. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20190508/0115Z