Geomagnetic storms today

On December 13, 2025, a kIndex of 5 indicates a Minor geomagnetic storm, which is characterized by increased geomagnetic activity caused by solar winds interacting with the Earth's magnetosphere. This level of activity may lead to enhanced auroral displays, visible at higher latitudes, and can occasionally disrupt high-frequency radio communications and satellite operations. For weather-sensitive individuals, such as those with certain health conditions like migraines or cardiovascular issues, a Minor geomagnetic storm can induce physiological effects. Some research suggests that fluctuations in geomagnetic activity may influence mood, sleep patterns, and overall well-being. People may experience increased fatigue, irritability, or headache during such events. It is essential for individuals who are particularly sensitive to these changes to stay informed about geomagnetic activity levels. While the effects are generally mild, awareness can help mitigate discomfort and allow for greater preparedness during periods of increased geomagnetic activity.