Great Sitkin (ORANGE/WATCH): Weakly elevated surface temperatures observed in VIIRS satellite imagery. Nothing unusual observed in clear webcam views. Attaching view from GSCK here to show first clear glimpse of lava flow from that angle in a long time.

View of summit lava flow from GSCK

weakly elevated surface temperatures at Great Sitkin observed in VIIRS imagery

Associated Images:
gsitkin_gsck-20251230T020600Z.jpg
375mAKKN-MIR-d20251230t1414340677Z.png

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

Shishaldin (YELLOW/ADVISORY): Weak steaming observed in webcam views and clear satellite views. WorldView-3 imagery may show slightly elevated surface temperatures in SWIR bands, however, it is extremely faint.

weak steaming at Shishaldin summit observed from BRPK

WorldView-3 SWIR image of shishaldin summit showing _extremely_ weakly elevated surface temperatures

WorldView-3 true color imagery showing weak steaming at shishaldin summit

Associated Images:
shishaldin_brpk-20251230T013100Z.jpg
shishaldin_20251218T2140_wv3_swir.jpg
shishaldin_20251218T2140_wv3_vis.jpg

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

Atka volcanic complex (GREEN/NORMAL): moderately elevated surface temperatures in VIIRS imagery from known summit lake location.

moderately elevated surface temperatures observed at known Korovin summit lake.

Associated Images:
375mAKKO-MIR-d20251230t1414340677Z.png

Associated Keywords:
Elevated surface temperatures: moderately elevated;
Cloud cover: mostly clear;

Cleveland (GREEN/NORMAL): Moderately elevated surface temperatures observed in VIIRS imagery. Nothing unusual observed in mostly cloudy webcam views.

Moderately elevated surface temperatures observed in VIIRS imagery at Cleveland

Associated Images:
375mAKCL-MIR-d20251230t1323586989Z.png