The National Oceanic and Atmospheric Administration (NOAA) Space Weather Prediction Center (SWPC) has issued a geomagnetic storm watch. A G2-class (moderate) geomagnetic storm is anticipated for June 14, 2025.
This storm is linked to a coronal hole, a region on the Sun where the magnetic field is open, allowing solar wind to escape more readily. This solar wind, composed of charged particles, can interact with Earth's magnetosphere, potentially causing geomagnetic storms. The SWPC has high confidence in the storm's magnitude, as a similar coronal hole produced G2-level storming during its last rotation.
The upcoming storm's effects may include impacts on satellites and high-frequency radio communications. Additionally, the interaction of fast and slow solar wind streams, known as a co-rotating interaction region (CIR), may amplify the storm's impact. This could enhance the potential for auroral displays at higher latitudes.