Geomagnetic Storm Brings Auroras South
March 25, 2024 Diverse
A powerful geomagnetic storm triggered by solar eruptions is causing disruptions and dazzling light displays across the United States. The National Oceanic and Atmospheric Administration's (NOAA) Space Weather Prediction Center (SWPC) initially classified the storm as minor (G1-G2) but upgraded it to a severe (G4) level within hours.
Auroras Visible in Southern States?
This intense activity could push the auroras, also known as northern lights, unusually far south, potentially making them visible in states like Alabama and northern California under clear skies. A G3 storm, still powerful, can bring auroras to locations like New York, Washington D.C., and Wisconsin.
Governor Kathy Hochul of New York confirmed the state's monitoring of the situation and coordination with federal and industry partners. While no power grid or communication disruptions have been reported yet, officials urge residents to stay informed.
Solar Activity on the Rise
The vibrant auroras are caused by charged solar particles colliding with Earth's atmosphere. These particles are often delivered through solar flares or coronal mass ejections (CMEs).
The University of Alaska Fairbanks Geophysical Institute is measuring the current storm's geomagnetic activity at Kp index 6, potentially allowing auroras to be seen in cities like Seattle, Minneapolis, Green Bay, and Syracuse.
Unfortunately, cloudy skies forecasted by Fox Forecast Center may hinder viewing opportunities across the US.
Limited Grid Impact Expected
Despite the storm's intensity, the SWPC reassures the public that the power grid is unlikely to be significantly affected. They advise citizens to stay informed through the SWPC webpage but avoid unnecessary actions.
The increased frequency of geomagnetic storms aligns with the sun reaching its peak activity period within Solar Cycle 25, which began in 2019 and is expected to last until 2030. This cycle is characterized by the sun's magnetic field flipping every 11 years.