BIO Space Sciences
The term describes the disruptive influence that storms at the surface of the Sun can have at Earth.
The worst of these events can disturb satellites, power grids and radio communications.
As with terrestrial weather, the Met Office, at its HQ in Exeter, has been asked to co-ordinate operational forecasting.
It has been doing this now for a number of weeks, working with experts across the UK and in the US, which has had a prediction service for many years.
The government has ordered contingencies be put in place.
Space weather has long been recognised as an issue, but experts say our increasing dependence on technology has made 21st Century society more vulnerable.
Explosive eruptions from the Sun can have a wide range of effects on modern infrastructure.
The magnetic fields in the biggest outbursts can induce currents in electricity networks that overload equipment and cause power outages.
Mark Gibbs, the head of space weather at the Met Office, told the BBC: "We're working with critical national infrastructure operators to protect UK PLC. Our forecasts will help those operators take measures to mitigate the risks, so that hopefully we don't see major problems occurring."
The National Grid is already using the service.