FVXX20 KNES 180513 VA ADVISORY DTG: 20160918/0513Z VAAC: WASHINGTON VOLCANO: SANTA MARIA 342030 PSN: N1445 W09133 AREA: GUATEMALA SUMMIT ELEV: 12375 FT (3772 M) ADVISORY NR: 2016/237 INFO SOURCE: GOES-EAST. GFS WINDS. INSIVUMEH. ERUPTION DETAILS: ONGOING EM OBS VA DTG: 18/0445Z OBS VA CLD: VA NOT IDENTIFIABLE FROM SATELLITE DATA WINDS SFC/FL170 090/10-15KT FCST VA CLD +6HR: 18/1100Z FCST VA CLD +12HR: 18/1700Z FCST VA CLD +18HR: 18/2300Z RMK: INSIVUMEH REPORTS VA EM TO FL170 EXTENDING 15NM W OF SUMMIT. VA NOT OBS IN STLT IMAGERY DUE TO WX CLDS. MODEL WINDS AGREE ALL VA TO MOVE W OF SUMMIT. ...SALEMI NXT ADVISORY: WILL BE ISSUED BY 20160918/1115Z