Great Sitkin (ORANGE/WATCH): BARELY elevated surface temperatures observed in VIIRS last night. Web cameras were obscured by clouds.

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

Shishaldin (YELLOW/ADVISORY): Vigorous steam emissions were observed in web camera and satellite images yesterday afternoon and last night. At times the extended to the north as far as the coast. These are some of the longest plumes observed during the recent period of unrest.

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