Unalaska, AK – For the past two weeks, scientists at the Alaska Volcano Observatory noticed thermal anomalies at Cleveland Volcano in the central Aleutians. Now, it's on watch. After detecting a rise in temperature using satellite imagery, AVO has put a code yellow warning on the volcano.

AVO will watch the volcano closely for the next month, according to AVO chief scientist Chris Waythomas. If there is no further activity, the advisory will be removed.