November's geomagnetic storm calendar: High solar activity and who's most affected
When to expect magnetic storms in November (photo: Freepik)
In November 2025, Earth may experience several periods of geomagnetic activity. Analysis of models from NOAA, ESA, and SpaceWeather, along with early scientific forecasts, points to potential risk days. Here is the data on expected storm dates, risk groups, and expert advice on minimizing negative effects.
Forecast of magnetic storms in November
Based on models from NOAA, NASA/SDO, and ESA SWE, as well as reports from SpaceWeather:
November 1-2: possible moderate disturbances
November 7-9: a strong red-level storm is forecast
November 11-12: possible moderately weak storms
November 15: a short but powerful geomagnetic storm
November 20-22: likelihood of moderate magnetic storms
November 25: red-level magnetic storm
November 28-30: increased activity expected
What a geomagnetic storm is
Solar flares and coronal mass ejections are bursts of powerful energy that, upon reaching Earth, interact with its magnetosphere.
When these charged particles affect the planet's magnetic field, a geomagnetic storm occurs. Its intensity is measured by the K-index scale (0-9).
- K-index 4-5 is a moderate storm (G1), which may cause discomfort and minor technical disruptions
- K-index 6 and above are higher-level storms that can impact power grids, navigation systems, and worsen certain health conditions
How storms affect technology
During geomagnetic fluctuations, satellites, GPS navigation, and radio communications—especially at high latitudes—may experience interference. Power grids may also face increased load. While moderate storms rarely cause serious outages, some systems can still be affected.
Impact on human well-being
Even moderate disturbances can cause discomfort in people sensitive to such changes. Typical symptoms include:
- Headache
- Dizziness
- Fatigue
- Blood pressure fluctuations
- Sleep disturbances or drowsiness
- Irritability
- Decreased concentration
Who is at risk
Geomagnetic fluctuations affect people differently. The most vulnerable include:
- People with cardiovascular diseases
- Those with high blood pressure
- Elderly individuals
- Weather-sensitive people
- Pregnant women
- Patients with chronic neurological or endocrine conditions
On such days, they may experience headaches, fatigue, blood pressure swings, insomnia, or reduced focus.
How to protect yourself during a magnetic storm
Doctors and experts recommend:
- Sleeping at least 7-8 hours
- Drinking plenty of water and avoiding alcohol, energy drinks, and excessive coffee
- Eating light meals: more vegetables, fruits, and fish, less fatty or salty food
- Taking walks outdoors while avoiding heavy exertion
- Sticking to prescribed medication schedules, especially for cardiovascular diseases
- Reducing stress and avoiding overwork
- Monitoring space weather updates
During magnetic storm days, it's best to plan a balanced schedule. Avoid excessive activity or overexertion.
Sources: NOAA Space Weather Prediction Center, ESA Space Weather Coordination Center, 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.
