Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 4000 ft (1200 m) altitude or flight level 040 .The full report is as follows:FVXX27 at 14:16 UTC, 02/01/26 from KNESVA ADVISORYDTG: 20260102/1413ZVAAC: WASHINGTONVOLCANO: MASAYA 344100PSN: N1159 W08610AREA: NICARAGUASOURCE ELEV: 1949 FT AMSLADVISORY NR: 2026/001INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: LGT VA EMS OBSOBS VA DTG: 02/1350ZOBS VA CLD: SFC/FL040 N1200 W08610 - N1159 W08609- N1152 W08614 - N1154 W08618 - N1200 W08610 MOVSW 20KT FCST VA CLD +6HR: 02/2000Z SFC/FL040 N1159 W08610- N1158 W08609 - N1150 W08622 - N1155 W08625 -N1159 W08610 FCST VA CLD +12HR: 03/0200Z SFC/FL040 N1200W08610 - N1158 W08609 - N1151 W08623 - N1156W08625 - N1200 W08610 FCST VA CLD +18HR: 03/0800Z NO VA EXPRMK: LGT VA EMS OBS IN STLT IMG UP TO APPRX 10NMFM SUMMIT. LGT VA PLUME SEEN IN WEBCAM. NWP MDLGUIDANCE FCSTS GEN WSW MOVMT THRU T+12....MONAGHANNXT ADVISORY: WILL BE ISSUED BY 20260102/2015Z