Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 17000 ft (5200 m), or flight level 170.Original VAAC bulletin:FVXX23 at 23:16 UTC, 17/08/26 from KNESVA ADVISORYDTG: 20260817/2313ZVAAC: WASHINGTONVOLCANO: PURACE 351060PSN: N0219 W07624AREA: COLOMBIASOURCE ELEV: 15256 FT AMSLADVISORY NR: 2026/410INFO SOURCE: GOES-19. NWP MODELS. ERUPTION DETAILS: VA EMS ONGOINGOBS VA DTG: 17/2230ZOBS VA CLD: SFC/FL170 N0225 W07638 - N0220 W07623- N0219 W07623 - N0216 W07638 - N0225 W07638 MOVW 15KT FCST VA CLD +6HR: 18/0430Z SFC/FL170 N0225 W07640- N0220 W07623 - N0219 W07623 - N0215 W07639 -N0225 W07640 FCST VA CLD +12HR: 18/1030Z SFC/FL170 N0225W07640 - N0219 W07623 - N0218 W07625 - N0214W07640 - N0225 W07640 FCST VA CLD +18HR: 18/1630Z SFC/FL170 N0225W07639 - N0220 W07623 - N0219 W07624 - N0215W07639 - N0225 W07639 RMK: VA NOT DETECTED ON STLT DUE TO WX CLDS INSUMMIT AREA. VA EMS LIKELY CONTINUE GIVEN RECETNACTVTY. NO CHG FCST TO MDL WINDS AT FL NXT 18 HR....KONONNXT ADVISORY: WILL BE ISSUED BY 20260818/0515Z