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
No enhancements to the aurora are forecast through this period. Any visibility will be restricted to just the highest geomagnetic latitudes.
Southern Hemisphere
No enhancements to the aurora are forecast through this period. Any visibility will be restricted to just the highest geomagnetic latitudes.
Issued at: 13:32 (GMT) on Tue 10 Nov 2026
Forecast overview
Space Weather Forecast Headline: Very Slight Chance of Minor geomagnetic storm G1 Day 1 (10 Nov). Further Minor radio blackouts (R1s) likely.
Analysis of Space Weather Activity over past 24 hours
Solar Activity: Low with frequent Common-class flares, peaking just below the Moderate level at 10/0834 UTC from the large spot in the southwest. This is the most complex of the five sunspot regions on the Earth-facing disc, with a weak mixed polarity spot near its main leader. However, this has been showing sign of decay, losing areal extent and seeing some separation of its leader and trailer spots. The other regions are smaller and simpler, however the region just west of south-centre, and the newly developing region in the northeast, have both shown signs of slow development.
No Earth-directed Coronal Mass Ejections (CMEs) were observed.
Solar Wind / Geomagnetic Activity: Solar winds were reflective of an ongoing fast wind from a large coronal hole. Solar wind speed was Strong, but with an easing trend, erratically declining from around 740km/s to 630km/s. Interplanetary Magnetic Field was Weak throughout, below 5nT. The north-south component remained variable in direction and also Weak. Geomagnetic activity was Quiet to Unsettled (Kp1-3).
Energetic Particles / Solar Radiation: No solar radiation storms were observed, with the count rate of energetic particles (high energy protons) persisting at Background.
Four-Day Space Weather Forecast Summary
Solar Activity: Low activity is likely, with a chance of rising to Moderate with any M-class flares, most likely from the larger region in the southwest.
Solar Wind / Geomagnetic Activity: There are no Earth-directed CMEs. Ongoing fast winds are expected to gradually ease through the period. Mainly Quiet geomagnetic activity with Unsettled intervals is forecast (Kp1-3), along with a slight chance of Active (Kp4) intervals, mainly day 1-2 (10-11 Nov)
Energetic Particles / Solar Radiation: Solar radiation storms are currently not expected. However any significant solar flares from the large region in the southwest, could result in the observed count rate of energetic particles (high energy protons) increasing. This will bring the slight chance of exceeding the S1 Minor radiation storm level.
Issued at: 12:40 (GMT) on Tue 10 Nov 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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