Space Weather

Space Weather

Space weather describes changing environmental conditions in near-Earth space. Magnetic fields, radiation, particles and matter, which have been ejected from the Sun, can interact with the Earth’s upper atmosphere and surrounding magnetic field to produce a  variety of effects.

Image courtesy of NASA/SDO and the AIA, EVE, and HMI science teams

Space weather notifications

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Aurora forecasts

Northern Hemisphere

The auroral oval is likely to remain at background levels through the next three days. No significant activity is expected.

Southern Hemisphere

The auroral oval is likely to remain at background levels through the next three days, with no significant activity excepted.

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Forecast overview

Space Weather Forecast Headline: No significant activity.

Analysis of Space Weather Activity over past 24 hours

Solar Activity: Solar activity was very low over the past 24 hours. There is one small and simple sunspot near centre disc. No Earth-directed Coronal Mass Ejections (CMEs) were observed.

Solar Wind / Geomagnetic Activity: The solar wind speed has been at background levels for much of the period. The magnetic field associated with the solar wind was stable and small in magnitude throughout, as was the important north-south component.

Energetic Particles / Solar Radiation: The number of energetic particles (solar proton flux) was at background with no solar radiation storms observed in the period.

Four-Day Space Weather Forecast Summary

Solar Activity: Solar activity is expected to be very low, with no significant flares forecast.

Solar Wind / Geomagnetic Activity: No Earth-directed CMEs are forecast. Solar winds speeds are expected to remain at mainly background levels through the forecast period. Geomagnetic activity is forecast to stay generally Quiet.

Energetic Particles / Solar Radiation: The number of energetic particles (solar proton flux) is forecast to remain at background with no solar radiation storms observed in the period.

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Solar imagery

SDO AIA-193

This channel highlights the outer atmosphere of the Sun - called the corona - as well as hot flare plasma. Hot active regions, solar flares, and coronal mass ejections will appear bright here. The dark areas - called coronal holes - are places where very little radiation is emitted, yet are the main source of solar wind particles.

SDO AIA-304

This channel is especially good at showing areas where cooler dense plumes of plasma (filaments and prominences) are located above the visible surface of the Sun. Many of these features either can't be seen or appear as dark lines in the other channels. The bright areas show places where the plasma has a high density.

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