Great Sitkin (ORANGE/WATCH): There was a weak thermal anomaly visible in a few VIIRS mid-IR images—nothing new. Webcam views were cloudy.
Associated Keywords:
Elevated surface temperatures: barely elevated;
Cloud cover: cloudy;


Shishaldin (YELLOW/ADVISORY): Maybe an extremely weak thermal anomaly in a few VIIRs mid-IR images, but nothing definitive. Nothing else obvious in satellite views, but the typical steam plume was visible in somewhat clear BRPK and ISLZ webcam views this morning.
Associated Keywords:
Volcanic clouds: steam/water;
Elevated surface temperatures: barely elevated;
Cloud cover: partly cloudy;


Cleveland: Moderately elevated temps seen in VIIRs mid-IR images. Normal-looking steaming at the summit in webcam views.
Katmai: Still pretty dusty and hazy webcam views of the Katmai River valley from the KAB2 webcam.
____________________________________
To view these and other satellite data, please use http://volcview.wr.usgs.gov/

Duty person can be reached at (907) 786-7481 if you have any questions.

Last image viewed: 19 Dec 2025 14:48 UTC