There is an increased chance of a geomagnetic disturbance throughout the weekend due to the arrival at Earth of two coronal mass ejections (CMEs) seen leaving the Sun on the 17th and 19th December.
More information on the alert.
Share your aurora sightings with us through a new mapping tool GeoSocial - Aurora! Tweet your geo-located sightings and see them displayed on the map for others to see! Read more about how GeoSocial may help aurora prediction.
When we predict an increase in magnetic activity we send out a geomagnetic disturbance alert.
Notice of a potential magnetic storm increases your chance of seeing the Northern Lights!
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The Geomagnetism team measures, records, models and interprets variations in the Earth’s natural magnetic fields.
Our data and expertise help to develop scientific understanding of change in the Earth and the environment, from deep within the core out into space.
We also provide geomagnetic products and services to industry and to academic colleagues and we use our knowledge for information and education.
Modelling the Earth's magnetic field, space weather hazards.
About our magnetic observatory operations, UK surveying, equipment.
Observatory data, indices, models, charts, applications.
Overviews of the Earth's magnetic field, reversals, magnetic poles.
Find out what the current global geomagnetic activity level is.