Volcanic ash emissions from Puracé were recently observed moving northwest, but no ash plume height was specified in the latest advisory. Forecasts indicate continued northwest movement up to FL190 through the next 12 hours.Original VAAC bulletin:FVXX23 at 07:48 UTC, 21/09/26 from KNESVA ADVISORYDTG: 20260921/0745ZVAAC: WASHINGTONVOLCANO: PURACE 351060PSN: N0219 W07624AREA: COLOMBIASOURCE ELEV: 15256 FT AMSLADVISORY NR: 2026/536INFO SOURCE: GOES-19. VONA. NWP MODELS. ERUPTION DETAILS: VA EMS CONT EST VA DTG: 21/0710ZEST VA CLD: SFC/FL190 N0227 W07627 - N0219 W07623- N0218 W07623 - N0220 W07632 - N0227 W07627 MOVW 10KT FCST VA CLD +6HR: 21/1300Z SFC/FL190 N0235 W07634- N0219 W07623 - N0217 W07623 - N0228 W07641 -N0235 W07634 FCST VA CLD +12HR: 21/1900Z SFC/FL190 N0235W07634 - N0219 W07623 - N0217 W07623 - N0229W07640 - N0235 W07634 FCST VA CLD +18HR: 22/0100Z NO VA EXPRMK: VA EMS RCNTLY OBS ON STLT MVG NW FM SUMMIT.VA NOT CRNTLY OBS DUE TO WX CLDS. RCNT VONA RCVDFOR EMS TO FL190. NW MVMT TO CONT THRU T+12ACCORDING TO NWP MDLS. ...EVANSNXT ADVISORY: WILL BE ISSUED BY 20260921/1345Z