Explosive activity continues. The Volcanic Ash Advisory Center (VAAC) Washington warned of a volcanic ash plume rising to an estimated 16000 ft (4900 m), or flight level 160.
Original VAAC bulletin:
FVXX21 at 00:28 UTC, 25/09/26 from KNES
VA ADVISORY
DTG: 20260925/0025Z
VAAC: WASHINGTON
VOLCANO: REVENTADOR 352010
PSN: S0005 W07739
AREA: ECUADOR
SOURCE ELEV: 11686 FT AMSL
ADVISORY NR: 2026/990
INFO SOURCE: GOES-19. WEBCAM. NWP MODELS.
ERUPTION DETAILS: FRQT VA EMS.
OBS VA DTG: 24/2350Z
OBS VA CLD: SFC/FL160 S0004 W07750 - S0004 W07739
- S0005 W07739 - S0007 W07750 - S0004 W07750 MOV
W 10KT
FCST VA CLD +6HR: 25/0600Z SFC/FL160 N0002 W07754
- S0004 W07739 - S0005 W07739 - S0002 W07756 -
N0002 W07754
FCST VA CLD +12HR: 25/1200Z SFC/FL160 N0001
W07755 - S0004 W07739 - S0005 W07739 - S0004
W07756 - N0001 W07755
FCST VA CLD +18HR: 25/1800Z SFC/FL160 N0004
W07753 - S0004 W07738 - S0005 W07739 - S0001
W07756 - N0004 W07753
RMK: MULT VA CLDS OBSD MOVG W ON STLT IMAGERY.
UNSURE OF ANOTHER VA CLD OR 2 EXISTS FARTHER W
DUE TO WX CLD CVR BUT IS PSBL. WEBCAM HAS SHOWN
APPRX 5 VA EMS SINCE 2315Z. NWP MDLS FCST VA TO
MOV WNW THRU T+6HRS. ...HOSLEY
NXT ADVISORY: WILL BE ISSUED BY 20260925/0630Z