We examine solar activity daily and forecast if this is likely to have any geomagnetic effect on Earth.

If this 'space weather' indicates that a large magnetic storm is possible in the next few days we may send out a space weather alert.

A large magnetic storm increases the possibility of aurora being visible at mid-latitudes.

You can sign-up to receive a Geomagnetic Disturbance Alert email or follow us on Twitter to get daily space weather forecasts or occasional aurora alerts.

Sign up to our 'Geomagnetic Disturbance Alert' emails

 

An example of the geomagnetic disturbance alert email.

 

Follow us on Twitter

 

For daily space weather forecasts:

Follow @BGSspaceWeather

For occasional aurora alerts:

Follow @BGSauroraAlert

Past Space Weather Alerts

 

Links to previous space weather alerts issued by BGS.

• Alert 23-Jan-2012
• Alert 20-Jan-2012
• Alert 04-Aug-2011
• Alert 09-Jun-2011
• Update 18-Feb-2011
• Alert 15-Feb-2011