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 02:14 UTC, 28/09/26 from KNES
VA ADVISORY
DTG: 20260928/0212Z
VAAC: WASHINGTON
VOLCANO: REVENTADOR 352010
PSN: S0005 W07739
AREA: ECUADOR
SOURCE ELEV: 11686 FT AMSL
ADVISORY NR: 2026/1003
INFO SOURCE: GOES-19. VONA. WEBCAM. NWP MODELS.
ERUPTION DETAILS: ONGOING VA EMS
OBS VA DTG: 28/0150Z
OBS VA CLD: SFC/FL160 N0007 W07749 - S0004 W07739
- S0005 W07740 - N0001 W07753 - N0007 W07749 MOV
NW 10KT
FCST VA CLD +6HR: 28/0800Z SFC/FL160 N0011 W07753
- S0004 W07740 - S0005 W07740 - N0003 W07756 -
N0011 W07753
FCST VA CLD +12HR: 28/1400Z SFC/FL160 N0011
W07753 - S0005 W07740 - S0005 W07740 - N0003
W07757 - N0011 W07753
FCST VA CLD +18HR: 28/2000Z SFC/FL160 N0012
W07752 - S0004 W07739 - S0005 W07740 - N0003
W07756 - N0012 W07752
RMK: VA DETECTED ON STLT MOVG NW OF SUMMIT. VONA
INDICATES VA EMS AND HOTSPOT ON SWIR. NO CHG FCST
TO MDL WINDS AT FL NXT 18 HR. ...KONON
NXT ADVISORY: WILL BE ISSUED BY 20260928/0815Z