FVXX23 KNES 301926 VA ADVISORY DTG: 20190530/1926Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2019/598 INFO SOURCE: GOES-EAST. VONA. WEB CAM. NWP MODELS. GEOPHYSICAL INST. ERUPTION DETAILS: ONGOING VA EMS OBS VA DTG: 30/1900Z OBS VA CLD: SFC/FL170 N0001 W07751 - S0004 W07739 - S0005 W07740 - S0006 W07755 - N0001 W07751 MOV W 10-15KT FCST VA CLD +6HR: 31/0100Z SFC/FL170 N0003 W07755 - S0004 W07739 - S0006 W07739 - S0006 W07801 - N0003 W07755 FCST VA CLD +12HR: 31/0700Z SFC/FL170 N0003 W07755 - S0004 W07738 - S0006 W07739 - S0006 W07801 - N0003 W07755 FCST VA CLD +18HR: 31/1300Z SFC/FL170 N0003 W07755 - S0004 W07738 - S0006 W07740 - S0006 W07801 - N0003 W07755 RMK: OCNL VA IS SEEN IN VA AND IS RPRT BY GEOPHYSICAL INST. STLT IMAGEY SHOW OCNL VA , BUT IS DIFFICULT TO OBS DUE TO WX CLDS. NWP MODEL INDICATES CONT W MOV THRU +18HR. VA IS DRAWN BASED ON PREVIOUS VAA, NWP MODEL AND VONA INFO. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20190531/0130Z