Great Sitkin (ORANGE/WATCH): All views cloudy over last day.
Associated Keywords:
Cloud cover: cloudy;

Pavlof (YELLOW/ADVISORY): Clear north of and on-top of Pavlof, no activity to see.
Associated Keywords:
Cloud cover: mostly clear;

Shishaldin (YELLOW/ADVISORY): Webcams were stuck in fog all day, but clear high resolution satellite images showed typical steam emissions. Sentinel-2 SWIR had an elevated pixel in the conduit--the first detection like this for the current cycle of unrest (not when clear, Cleveland's summit dome is similarly elevated). WorldView-3 image was slightly more oblique and showed no SWIR anomaly, but did confirm there are no new deposits on clean snow inside the crater. Clouds came in overnight, so no clear overnight VIIRS to compare to.

Associated Images:
Shsihaldin_20260118_Sentinel2_SWIR.png

Associated Keywords:
Volcanic clouds: steam/water;
Elevated surface temperatures: barely elevated;
Cloud cover: cloudy; partly cloudy;