Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 17000 ft (5200 m) altitude or flight level 170 .
The full report is as follows:
FVXX20 at 03:03 UTC, 30/12/25 from KNES
VA ADVISORY
DTG: 20251230/0301Z
VAAC: WASHINGTON
VOLCANO: REVENTADOR 352010
PSN: S0005 W07739
AREA: ECUADOR
SOURCE ELEV: 11686 FT AMSL
ADVISORY NR: 2025/1341
INFO SOURCE: GOES-19. NWP MODELS.
ERUPTION DETAILS: VA MOVG W
OBS VA DTG: 30/0230Z
OBS VA CLD: SFC/FL170 S0001 W07749 – S0004 W07739
– S0005 W07739 – S0007 W07749 – S0001 W07749 MOV
W 15KT
FCST VA CLD +6HR: 30/0830Z SFC/FL170 N0001 W07758
– S0004 W07739 – S0005 W07739 – S0008 W07758 –
N0001 W07758
FCST VA CLD +12HR: 30/1430Z SFC/FL170 N0004
W07754 – S0004 W07739 – S0005 W07740 – S0003
W07756 – N0004 W07754
FCST VA CLD +18HR: 30/2030Z SFC/FL170 N0003
W07754 – S0004 W07739 – S0005 W07739 – S0004
W07756 – N0003 W07754
RMK: OCNL VA EMS OBS IN STLT IMAGERY MOVG W FM
SUMMIT. VA FCST THRU T+18 HRS BASED ON NWP MDL
GUIDANCE SUGGESTING W/WNW MVMT. …COVERDALE
NXT ADVISORY: WILL BE ISSUED BY 20251230/0900Z