FVXX20 KNES 210518 VA ADVISORY DTG: 20190121/0518Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/073 INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS. CIMSS VOLCAT. ERUPTION DETAILS: DISCRETE VA EM OBS VA DTG: 21/0445Z OBS VA CLD: SFC/FL150 N0006 W07756 - S0004 W07739 - S0005 W07740 - S0003 W07759 - N0006 W07756 MOV W 10-15KT FCST VA CLD +6HR: 21/1100Z SFC/FL150 N0014 W07803 - N0002 W07746 - S0007 W07749 - S0003 W07810 - N0014 W07803 FCST VA CLD +12HR: 21/1700Z SFC/FL150 NO ASH EXP FCST VA CLD +18HR: 21/2300Z NO ASH EXP RMK: VA EM OBS IN STLT IMAGERY MOV WNW FM SUMMIT AT FL150. NWP MODEL WINDS AGREE WITH TRAJECTORY. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20190121/1115Z