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A series of magnetic storms in early April: when to expect storms

A series of magnetic storms in early April: when to expect storms

Katerina Melnychenko Deputy Editor-in-Chief

31 March 2026, 08:50

A series of magnetic storms in early April: when to expect storms — magnetic storm, 31 March 2026

A series of magnetic storms is expected on Earth in late March and early April. According to a forecast by the British Geological Survey, geomagnetic activity could reach G1 storm levels between 31 March and 1 April, with a maximum of up to G3 predicted.

This has been reported by the British Geological Survey.

The British Geological Survey noted that increased geomagnetic activity is expected from 31 March due to heightened solar activity and the influence of coronal holes. According to their data, a prolonged X1.4-class solar flare occurred on 30 March, accompanied by a coronal mass ejection. Modelling suggests that the Earth may be hit by this eruption around midday on 31 March.

The BGS three-day forecast indicates that for the period 31 March – 1 April, the average level of geomagnetic activity is expected to be at STORM G1, and the maximum up to STORM G3. For the period 1–2 April, the average level is forecast as ACTIVE, and the maximum up to STORM G1.

Separately, NOAA has issued a G2 Watch for 31 March, valid for the UTC day. The US centre clarified that the fast coronal mass ejection is associated with an X1.4 flare and may have at least a partial impact on Earth, although the assessment is still being refined.

When is the next wave of activity forecast?

The BGS also warned that following this event, a new high-speed stream of solar wind from another coronal hole will begin reaching Earth from 2 April. It is this stream that could trigger further G1/G2-level storm periods in early April.

Experts add that space weather forecasts may change as models are updated and new observations are made. NOAA and the BGS explicitly state that the parameters of the current eruption are still being analysed, so the strength and duration of the storm may be revised.

Geomagnetic storms can affect not only the well-being of weather-sensitive people but also technical systems. NOAA notes that such events can cause problems for power grids, satellites, radio communications and navigation, including GPS.

As a reminder, today, 31 March, Ukraine commemorates Saint Hypatius, Bishop, according to the Orthodox calendar. Traditionally, this day has been associated with folk omens, household precautions and prayers for good health.

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