FVXX20 KNES 181400 VA ADVISORY DTG: 20210818/1400Z VAAC: WASHINGTON VOLCANO: FUEGO 342090 PSN: N1428 W09052 AREA: GUATEMALA SUMMIT ELEV: 12346 FT (3763 M) ADVISORY NR: 2021/748 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: INTMT VA EMS. OBS VA DTG: 18/1330Z OBS VA CLD: SFC/FL150 N1430 W09103 - N1428 W09053 - N1427 W09053 - N1425 W09103 - N1430 W09103 MOV W 15KT FCST VA CLD +6HR: 18/1930Z SFC/FL150 N1432 W09125 - N1429 W09052 - N1427 W09053 - N1420 W09117 - N1432 W09125 FCST VA CLD +12HR: 19/0130Z SFC/FL150 N1429 W09053 - N1427 W09052 - N1418 W09111 - N1425 W09127 - N1429 W09053 FCST VA CLD +18HR: 19/0730Z SFC/FL150 N1429 W09053 - N1427 W09052 - N1413 W09117 - N1422 W09122 - N1429 W09053 RMK: VA EM OBSD BY STLT JUST BFR 1310Z MOVG W. WEBCAM SHOWS VA EMS AT 1324Z AND 1332Z THRU BRKS IN WX CLD CVR. NWP MDLS AND WEBCAM SUGGEST FL150. NWP MDLS FCST BACKING WINDS THRU T+12 WITH LTLCG AFTER THAT. ...HOSLEY NXT ADVISORY: WILL BE ISSUED BY 20210818/2000Z