• Large amount of Saharan dust moving over the Atlantic Ocean

    Another large Saharan dust cloud has lifted off western Africa late Sunday, August 22, 2021, and is now moving over the Atlantic Ocean toward the Caribbean and the United States. The cloud seems of similar strength to the one produced last week. Image credit:…

  • Magma rising at Great Sitkin volcano, Alaska

    A lava dome-like feature formed in the summit crater of Great Sitkin volcano, Alaska, suggesting magma is rising near the surface. As a result, the Alaska Volcano Observatory (AVO) has raised the Aviation Color Code to ORANGE and the Volcano Alert Level to WATCH. A…

  • Large Saharan dust cloud moving over the Atlantic Ocean

    A new large Saharan dust cloud is moving over the Atlantic Ocean and is expected to reach the Caribbean by the end of the week. The cloud will remain over the Caribbean until the end of the week and move toward the southeastern US early next week. Saharan dust…