Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 16000 ft (4900 m) altitude or flight level 160 .
The full report is as follows:
FVXX20 at 15:17 UTC, 09/12/25 from KNES
VA ADVISORY
DTG: 20251209/1514Z
VAAC: WASHINGTON
VOLCANO: REVENTADOR 352010
PSN: S0005 W07739
AREA: ECUADOR
SOURCE ELEV: 11686 FT AMSL
ADVISORY NR: 2025/1253
INFO SOURCE: GOES-19. VONA. WEBCAM. NWP MODELS.
ERUPTION DETAILS: CONS VA EMS SEEN IN SAT
OBS VA DTG: 09/1450Z
OBS VA CLD: SFC/FL160 N0020 W07722 – N0016 W07713
– S0005 W07738 – S0004 W07740 – N0020 W07722 MOV
NE 10KT
FCST VA CLD +6HR: 09/2100Z SFC/FL160 N0020 W07714
– N0006 W07705 – S0006 W07738 – S0004 W07740 –
N0020 W07714
FCST VA CLD +12HR: 10/0300Z SFC/FL160 S0004
W07738 – S0025 W07727 – S0029 W07738 – S0005
W07740 – S0004 W07738
FCST VA CLD +18HR: 10/0900Z SFC/FL160 S0004
W07740 – S0005 W07739 – S0022 W07802 – S0016
W07810 – S0004 W07740
RMK: UPDATED VAA AS VA GETTING FARTHER OUT THAN
FCSTD. CONS VA SEEN IN SAT MOV NE AND EXTDG ARND
35 NM FM SUMMIT. FCST CONFIDENCE BEYOND T+6 HRS
IS LOW. MOV AND HGT BASED ON SAT AND GUIDANCE.
…KIBLER
NXT ADVISORY: WILL BE ISSUED BY 20251209/2115Z
