Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Washington warned about a volcanic ash plume that rose up to estimated 18000 ft (5500 m) altitude or flight level 180 .
The full report is as follows:
FVXX21 at 09:06 UTC, 18/01/26 from KNES
VA ADVISORY
DTG: 20260118/0903Z
VAAC: WASHINGTON
VOLCANO: RUIZ 351020
PSN: N0453 W07519
AREA: COLOMBIA
SOURCE ELEV: 17319 FT AMSL
ADVISORY NR: 2026/006
INFO SOURCE: GOES-19. NWP MODELS. SERVICIO
GEOLOGICO COLOMBIANO.
ERUPTION DETAILS: VA EMS REPORTED
OBS VA DTG: 18/0840Z
OBS VA CLD: SFC/FL180 N0455 W07519 – N0443 W07512
– N0441 W07518 – N0455 W07522 – N0455 W07519 MOV
SE 10KT
FCST VA CLD +6HR: 18/1430Z SFC/FL180 N0455 W07518
– N0441 W07511 – N0438 W07517 – N0453 W07520 –
N0455 W07518
FCST VA CLD +12HR: 18/2030Z SFC/FL180 N0455
W07518 – N0440 W07515 – N0439 W07520 – N0455
W07520 – N0455 W07518
FCST VA CLD +18HR: 19/0230Z NO VA EXP
RMK: VA EMS REPORTED BY VONA. VA FL/DIR BASED ON
RPRT AND MDL GUIDANCE. HOT SPOT OBSD IN SAT. NWP
MDL FCST SLIGHTLY VEERING THRU T+12HRS. …ZENG
NXT ADVISORY: WILL BE ISSUED BY 20260118/1500Z