Great Sitkin (ORANGE/WATCH): Cloudy, nothing was observed in satellite or web camera views over the past day. Nothing was evident in TROPOMI data.
Associated Keywords:
Cloud cover: cloudy;

Shishaldin (YELLOW/ADVISORY): Diffuse vapor plume drifting south observed in NOAA-20 VIIRS true color image from 11 Dec 2025 00:37 UTC (attached). Minor vapor plume observed at summit in several web camera views.

Associated Images:
375mAKSH-VIS-d20251211t0037974502Z.png

Associated Keywords:
Volcanic clouds: steam/water;
Cloud cover: mostly clear;