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.
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Aurora forecasts
Northern Hemisphere
Aurora is now expected to be primarily at background levels until the arrival of coronal hole fast winds later on the 11th June, or more likely, through the 12th June. This may bring some enhanced aurora to northern parts of Scotland and similar latitudes later in the period.
Southern Hemisphere
Aurora is now expected to be primarily at background levels until the arrival of coronal hole fast winds later on the 11th June, or more likely, through the 12th June. This may bring some enhanced aurora to parts of New Zealand's south island and similar latitudes later in the period.
Issued at: 01:01 (GMT) on Tue 9 Jun 2026
Forecast overview
Space Weather Forecast Headline: CME (coronal mass ejection) likely missed Earth. Chance of Minor storms G1 Day 4 (12 June). Chance of isolated M-class flares throughout.
Analysis of Space Weather Activity over past 24 hours
Solar Activity: Solar activity has been Low over the past 24 hours, with occasional Common class flares
There are now up to nine regions on the Earth-facing disc, with a returning region crossing onto the far east of the disc. This region may yet prove the most active as it is showing significant movement in its constituent spots - the viewing angle is currently poor but it appears at least magnetically bipolar. Most other spots showed no major change, with some in slight decay.
No Earth-directed CMEs were observed in available imagery in the period.
Solar Wind / Geomagnetic Activity: Solar winds have continued a slow, rather erratic decline in the wake of recent coronal hole-sourced fast wind influence. Solar wind speeds fell from early elevated highs to current slightly elevated levels. Interplanetary magnetic field was weak, with the north-south component varying weakly. The net result of the above solar wind measures was for provisionally Quiet to Unsettled (Kp1-3) geomagnetic activity throughout.
Energetic Particles / Solar Radiation: No solar radiation storms were observed and high energy protons were near background, albeit initially still slightly enhanced in the wake of the recent Moderate-class X-ray flare from 08 June.
Four-Day Space Weather Forecast Summary
Solar Activity: Solar activity is forecast to be Low to Moderate, with a chance of isolated Moderate-class flares and a slight chance of an isolated Strong-class flare.
Solar Wind / Geomagnetic Activity: The CME (coronal mass ejection) that was associated with the M1.8 flare did not arrival as expected on the 08 June. There is still a slight chance this could arrive early on Day 1 (09 June), but this is now considered a low probability. The next enhancement barring any CME influence will be from a coronal hole currently in the east of the disc. Speeds of around 650km/s are expected from later Day 3, or more likely through Day 4 (11-12 June).
A slight chance of G1-G2/Minor to Moderate storms is maintained initially on Day 1 (09 June) to account for the now unlikely event of a glancing CME arrival. Otherwise predominately Quiet (Kp1-2) conditions are expected until the arrival of the coronal hole fast winds, which brings a renewed chance of G1-G2/Minor to Moderate storms, most likely on Day 4 (12 June).
Energetic Particles / Solar Radiation: High energy proton flux is expected to remain close to background, although there is a slight chance of S1 (Minor) solar radiation storms if any notable flares occur.
Issued at: 00:12 (GMT) on Tue 9 Jun 2026
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.
Issued at:
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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