Great Sitkin (ORANGE/WATCH): Just a hint of barely elevated surface temperatures that might really just be the snow-free dome surface in a couple clear overnight MIR looks.

Associated Images:
375mAKKN-MIR-d20260129t1341971559Z-annotated.png

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

Shishaldin (YELLOW/ADVISORY): Weakly elevated temperatures observed in a couple mostly clear overnight views. Steam plume seen in satellite and webcam imagery was also reported by various pilots and the VAAC issued a reassuring "no ash" product. This plume had an SO2 signature as well, captured in both OMPS and TROPOMI data above the noisey background.

Associated Images:
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MidTrop-TROPOMI-2026_01_29_000313-Alaska Peninsula.png
shishaldin_islz-20260128T213000Z.jpg

Associated Keywords:
Volcanic clouds: SO2 signal; steam/water;
Elevated surface temperatures: barely elevated;
Cloud cover: mostly clear;

Atka volcanic complex (GREEN/NORMAL): Weakly elevated surface temperatures in overnight clear views as typical of the acid lake. Webcam is out.

Associated Images:
375mAKKO-MIR-d20260129t1401634980Z-annotated.png

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

Cleveland (GREEN/NORMAL): Moderately elevated surface temperatures in a single clear overnight MIR look. No clear webcam views. Daytime satellite views suggest a bright MIR atmospheric plume, likely generated by the hot and steamy crater.

Associated Images:
375mAKCL-MIR-d20260129t1311156633Z-annotated.png

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