Possible volcanic ash emissions were reported at Fuego based on webcam observations as of 21 September 2026 at 04:20 UTC. Ash movement is forecast to shift from southeast to southwest over the next 18 hours.Original VAAC bulletin:FVXX20 at 04:55 UTC, 21/09/26 from KNESVA ADVISORYDTG: 20260921/0453ZVAAC: WASHINGTONVOLCANO: FUEGO 342090PSN: N1428 W09052AREA: GUATEMALASOURCE ELEV: 12346 FT AMSLADVISORY NR: 2026/1103INFO SOURCE: GOES-19. WEBCAM. NWP MODELS. ERUPTION DETAILS: VA EMS LIKELY EST VA DTG: 21/0420ZEST VA CLD: SFC/FL140 N1429 W09053 - N1426 W09044- N1420 W09049 - N1427 W09053 - N1429 W09053 MOVSE 5KT FCST VA CLD +6HR: 21/1030Z SFC/FL140 N1429 W09052- N1417 W09040 - N1413 W09048 - N1428 W09053 -N1429 W09052 FCST VA CLD +12HR: 21/1630Z SFC/FL140 N1429W09053 - N1428 W09052 - N1413 W09053 - N1416W09102 - N1429 W09053 FCST VA CLD +18HR: 21/2230Z SFC/FL140 N1429W09052 - N1427 W09051 - N1414 W09100 - N1420W09106 - N1429 W09052 RMK: VA EMS NOT OBS ON STLT DUE TO WX CLDS BUTEMS OBS ON WEBCAM DURING OCNL CLRNG. A GEN SEMVMT THRU T+6 THEN VEERING MORE TWD THE SW BYT+18 ACCORDING TO NWP MDLS. ...EVANSNXT ADVISORY: WILL BE ISSUED BY 20260921/1100Z