FVXX20 KNES 110340 VA ADVISORY DTG: 20190511/0340Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/521 INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 11/0320Z OBS VA CLD: SFC/FL170 N0016 W07819 - S0004 W07739 - S0005 W07740 - N0007 W07822 - N0016 W07819 MOV NW 10KT FCST VA CLD +6HR: 11/0930Z SFC/FL170 N0025 W07821 - S0005 W07739 - S0005 W07740 - N0015 W07826 - N0025 W07821 FCST VA CLD +12HR: 11/1530Z SFC/FL170 N0032 W07823 - S0005 W07738 - S0005 W07740 - N0023 W07828 - N0032 W07823 FCST VA CLD +18HR: 11/2130Z SFC/FL170 N0023 W07825 - S0005 W07738 - S0005 W07739 - N0014 W07829 - N0023 W07825 RMK: VA EM VISIBLE IN STLT IMAGERY EXTD 45 NMI WNW FM SUMMIT FL170. NWP MODEL GUIDANCE AGREES WELL WITH OBS TRAJECTORY. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20190511/0945Z