Great Sitkin (ORANGE/WATCH): A very weak thermal anomaly was seen in a couple of sequential VIIRS mid-IR images yesterday before the clouds rolled in. Webcam views were cloudy.
Associated Keywords:
Elevated surface temperatures:
barely elevated;
Cloud cover:
cloudy; partly cloudy;
Shishaldin (YELLOW/ADVISORY): No activity seen in relatively clear satellite views. The usual gas plume was visible in clear webcam views.
Associated Keywords:
Volcanic clouds:
steam/water;
Cloud cover:
mostly clear;
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Cleveland (GREEN/NORMAL): Fairly clear conditions – moderately elevated surfaces temps seen in VIIRS mid-IR imagery throughout the past 24 hours. The typical weak gas plume was seen in clear webcam views.
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Last image viewed: 31 Dec 2025 14:45 UTC