FVXX24 KNES 181911 VA ADVISORY DTG: 20190818/1911Z VAAC: WASHINGTON VOLCANO: POPOCATEPETL 341090 PSN: N1901 W09837 AREA: MEXICO SUMMIT ELEV: 17802 FT (5426 M) ADVISORY NR: 2019/727 INFO SOURCE: GOES-EAST. WEB CAM. NWP MODELS. VOLCAT. ERUPTION DETAILS: POSS ONGOING VA EM OBS VA DTG: 18/1856Z OBS VA CLD: SFC/FL200 N1908 W09929 - N1902 W09837 - N1859 W09836 - N1856 W09931 - N1908 W09929 MOV W 15-20KT FCST VA CLD +6HR: 19/0100Z SFC/FL200 N1902 W09836 - N1859 W09836 - N1844 W09928 - N1855 W09929 - N1902 W09836 FCST VA CLD +12HR: 19/0700Z SFC/FL200 NO ASH EXP FCST VA CLD +18HR: 19/1300Z NO ASH EXP RMK: POSS ONGOING VA EM. WX CLD COVER W OF SUMMIT. NWP MODEL GUIDANCE SUGGESTS WESTWARD TRANSPORT FOR T+06 HRS. OBS BASED ON MODELS. ...BOLL NXT ADVISORY: WILL BE ISSUED BY 20190819/0115Z