FVXX22 KNES 190255 VA ADVISORY DTG: 20170819/0255Z VAAC: WASHINGTON VOLCANO: SAN-CRISTOBAL 344020 PSN: N1241 W08659 AREA: NICARAGUA SUMMIT ELEV: 5725 FT (1745 M) ADVISORY NR: 2017/006 INFO SOURCE: GOES-13. GFS MODEL WINDS. ERUPTION DETAILS: ONGOING VA AND STEAM EMISSIONS. OBS VA DTG: 19/0245Z OBS VA CLD: ASH NOT IDENTIFIABLE FROM SATELLITE DATA. WINDS SFC/FL070 090/15-20KT. FCST VA CLD +6HR: 19/0830Z FCST VA CLD +12HR: 19/1430Z FCST VA CLD +18HR: 19/2030Z RMK: 557 WW FOR WASHINGTON VAAC. ASH NOT VISIBLE ON LATEST METSAT IMAGERY. ...MIKHAYLEVSKIY NXT ADVISORY: WILL BE ISSUED BY 20170819/0900Z.