Powerful solar storms to strike Earth soon: Who should be most careful
A strong magnetic storm is approaching Earth (photo: Freepik)
Between October 27 and 31, 2025, Earth is expected to experience a series of geomagnetic storms of varying intensity. Magnetic storms can affect not only people's well-being but also the operation of technology, so it's important to know who may be at risk and how to reduce their negative impact. Scientists have issued a forecast for geomagnetic storms during this period and shared advice on how to minimize their effects on the human body.
Forecast of magnetic storms for October 27-31
October 27, Monday: K-index 3-4. Short-term fluctuations are possible, but no serious consequences are expected. The strongest disturbances are expected in the evening.
October 28, Tuesday: K-index 4-5. Geomagnetic activity will be moderate in the first half of the day, but the tension will start to increase later in the day.
October 29, Wednesday: K-index 5-6. A red-level geomagnetic storm is expected, which may affect people's well-being as well as the operation of electrical devices and communication systems.
October 30, Thursday: K-index 5. Geomagnetic activity will remain at red-level storm intensity, with only a slight decrease expected in the evening.
October 31, Friday: K-index 4. A moderate geomagnetic background with minor fluctuations is expected.
What is a magnetic storm
A geomagnetic storm is Earth's magnetic field's reaction to powerful solar streams that arrive after solar flares. Its intensity is measured by the K-index scale (0-9) or by G-class levels (G1-G5).
- G1 (K-index 4-5) is a moderate storm that can affect human health, communication, and navigation.
- G2 (K-index 6) and above are stronger levels that may cause power grid disruptions.
How storms affect technology
During geomagnetic disturbances, satellites, GPS navigation systems, and radio communications may experience malfunctions, especially at high latitudes. Electrical grids may also come under increased load. While serious blackouts are unlikely during moderate storms, some systems can be sensitive to fluctuations.
Impact on human well-being
Even moderate disturbances can cause discomfort for people sensitive to changes in the magnetic field. Typical symptoms include:
- Headache
- Dizziness
- Fatigue
- Blood pressure fluctuations
- Sleep disturbances or drowsiness
- Irritability
- Reduced concentration
Who is at risk
During such days, the body may react even to slight changes in the magnetic field. Those most at risk include:
- People with cardiovascular diseases
- Individuals with hypertension
- Elderly people
- Those with chronic conditions
- Weather-sensitive individuals
- People who are dependent on weather changes
- Those already experiencing sleep problems
How to reduce the impact of magnetic storms
Doctors recommend:
- Sleeping at least 7-9 hours
- Drinking more water and herbal tea
- Reducing consumption of coffee, alcohol, and energy drinks
- Avoiding overexertion and stress
- Eating light and balanced meals
- Spending time outdoors
- Ventilating indoor spaces regularly
- Monitoring blood pressure and overall well-being, especially if you have chronic illnesses
Sources: NOAA Space Weather Prediction Center, ESA Space Weather Coordination Centre, NASA Solar Dynamics Observatory, PMC, BioMed Central, Nature.
This material is for informational purposes only and should not be used for medical diagnosis or self-treatment. Our goal is to provide readers with accurate information about symptoms, causes, and methods of detecting diseases. RBС-Ukraine is not responsible for any diagnoses that readers may make based on materials from the resource. We do not recommend self-treatment and advise consulting a doctor in case of any health concerns.
