Volcanic Ash Advisory Center Washington (VAAC) issued the following report:FVXX20 at 09:58 UTC, 19/11/25 from KNESVA ADVISORYDTG: 20251119/0955ZVAAC: WASHINGTONVOLCANO: REVENTADOR 352010PSN: S0004 W07739AREA: ECUADORSOURCE ELEV: 11686 FT AMSLADVISORY NR: 2025/1162INFO SOURCE: GOES-19. NWP MODELS. ERUPTION DETAILS: VA EMS ONGOINGEST VA DTG: 19/0930ZEST VA CLD: SFC/FL140 S0005 W07740 - S0005 W07740- S0015 W07740 - S0012 W07747 - S0005 W07740 MOVSW 5KT FCST VA CLD +6HR: 19/1530Z SFC/FL140 S0005 W07739- S0016 W07740 - S0013 W07747 - S0005 W07740 -S0005 W07739 FCST VA CLD +12HR: 19/2130Z SFC/FL140 S0005W07740 - S0005 W07739 - S0015 W07747 - S0008W07752 - S0005 W07740 FCST VA CLD +18HR: 20/0330Z SFC/FL140 S0002W07752 - S0004 W07740 - S0005 W07740 - S0009W07752 - S0002 W07752 RMK: VA NOT DETECTED ON STLT DUE TO WX CLDS INSUMMIT AREA. VA EMS LIKELY CONTINUE GIVEN RECENTACTVTY. MDL WINDS AT FL FCST LGT/VRB T+6 TO 18 HRSO VA PSN CONF LO. ...KONONNXT ADVISORY: WILL BE ISSUED BY 20251119/1600Z