FVXX20 KNES 310523 VA ADVISORY DTG: 20230831/0523Z VAAC: WASHINGTON VOLCANO: REVENTADOR 352010 PSN: S0004 W07739 AREA: ECUADOR SUMMIT ELEV: 11686 FT (3562 M) ADVISORY NR: 2023/516 INFO SOURCE: GOES-16. WEBCAM. NWP MODELS. ERUPTION DETAILS: LKLY VA EMS OBS VA DTG: 31/0500Z OBS VA CLD: SFC/FL140 S0001 W07753 - S0004 W07739 - S0005 W07739 - S0007 W07754 - S0001 W07753 MOV W 10KT FCST VA CLD +6HR: 31/1100Z SFC/FL140 N0000 W07753 - S0004 W07739 - S0006 W07739 - S0004 W07755 - N0000 W07753 FCST VA CLD +12HR: 31/1700Z NO VA EXP FCST VA CLD +18HR: 31/2300Z NO VA EXP RMK: VA NOT OBSD IN SAT CLEARLY DUE TO MET CLDS. WEBCAM SHOWED LKLY VA EMS. VA FL/DIR BASED ON PREV ADVY AND MDL GUIDANCE. NWP MDL FCST LTLCG THRU T+6HRS. ...ZENG NXT ADVISORY: WILL BE ISSUED BY 20230831/1130Z