FVXX20 KNES 282300 VA ADVISORY DTG: 20180528/2300Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2018/538 INFO SOURCE: GOES-EAST. GUAYAQUIL MWO. NWP MODELS. VOLCANO WEB CAMERA. ERUPTION DETAILS: INTERMITTENT VA EMS OBS VA DTG: 28/2158Z OBS VA CLD: SFC/FL130 N0022 W07752 - S0005 W07739 - S0007 W07742 - N0014 W07811 - N0022 W07752 MOV NW 10-15KT FCST VA CLD +6HR: 29/0400Z SFC/FL130 N0022 W07802 - S0005 W07739 - S0008 W07740 - N0003 W07817 - N0022 W07802 FCST VA CLD +12HR: 29/1000Z SFC/FL130 NO ASH EXP FCST VA CLD +18HR: 29/1600Z NO ASH EXP RMK: VA CAN BE OBS 25NM NW FM THE SUMMIT, BUT IS SOMETIMES DIFFICULT TO DISCERN DUE TO WX CLDS. NWP MODEL GUIDANCES INDICATES A NW TO W MOV THRU +6HRS. ...ZHU NXT ADVISORY: WILL BE ISSUED BY 20180529/0500Z