Great Sitkin (ORANGE/WATCH): Webcam views have been obscured by clouds and ice over the past day. Clear daytime VIIRS images from yesterday show elevated surface temps at summit.

Associated Images:
375mAKKN-MIR-d20251205t0027463390Z.png

Associated Keywords:
Elevated surface temperatures: moderately elevated;
Cloud cover: cloudy; partly cloudy;

Shishaldin (YELLOW/ADVISORY): Clear views from BRPK and ISLZ showed vigorous degassing throughout the day yesterday. Plume was also apparent in visible VIIRS and Sentinel-2 images, extending >100 km SSW of the volcano. See attached.

Associated Images:
shishaldin_brpk-20251204T183200Z.jpg
375mAKSH-VIS-d20251204t2244863244Z.png

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