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
Coronal hole fast winds are now easing, with auroral activity becoming confined to high latitudes on 02 Nov (UTC). The auroral oval is expected to be near background levels on 03-04 Nov (UTC). Weak coronal hole fast winds and a possible glancing coronal mass ejection may then bring a Chance of aurora sightings to the far north of Scotland on 05 Nov (UTC) night.
Southern Hemisphere
Coronal hole fast winds are now easing, with auroral activity becoming confined to high latitudes on 02 Nov (UTC). The auroral oval is expected to be near background levels on 03-04 Nov (UTC). Weak coronal hole fast winds and a possible glancing coronal mass ejection may then bring a Chance of aurora sightings to the far south of New Zealand and similar magnetic latitudes on 05 Nov (UTC).
Issued at: 13:34 (GMT) on Mon 2 Nov 2026
Forecast overview
Space Weather Forecast Headline: Chance of G1/Minor Storms Day 4 (05 Nov).
Analysis of Space Weather Activity over past 24 hours
Solar Activity: Solar activity has been Low with the peak low level common-class flare at 01/1236UTC from a region in the eastern hemisphere. There are three sunspot regions on the visible disc. There iss a stable and small unipolar spot in the northeast. A small and fading spot in the east neart the Suns equator. Finally, a small but difficult to assess spot near the southeast limb.
A coronal mass ejection from a filament eruption near centre disk approx 01/1500 UTC has been assessed and is likely to miss ahead of Earth, though there is a slight chance of a glancing blow when it reaches 1AU, approximately 05 Nov.
Solar Wind / Geomagnetic Activity: Solar winds showed a declining fast wind. Wind speeds were largely Slightly Elevated, on a decreasing trend. The Interplanetary Magnetic Field was Weak. The north-south component varied Weakly, while favouring a southward orientation. Geomagnetic activity Quiet to Unsettled (Kp1-3).
Energetic Particles / Solar Radiation: No solar radiation storms were observed with the count rate of energetic particles persisting at background levels.
Four-Day Space Weather Forecast Summary
Solar Activity: Very Low or Low activity is expected to continue.
Solar Wind / Geomagnetic Activity: A coronal mass ejection from 01/1500 UTC is likely to miss ahead of Earth, though there is a slight chance of a glancing blow day 4 (05 Nov). Wind speeds are expected to continue easing towards background levels through days 1 and 2 (02-03 Nov). A small coronal hole just west of centre disc may bring slightly elevated wind speeds day 4 (05 Nov), but with low confidence in timing.
Mostly Quiet to Unsettled geomagnetic activity is expected for much of the period. Conditions may become Unsettled to Active, with a Chance of G1/Minor Storm intervals, during day 4 due to glancing coronal mass ejection influences, possibly combined with a weak fast wind influence.
Energetic Particles / Solar Radiation: No solar radiation storms are forecast with the count rate of energetic particles expected to persist at background levels.
Issued at: 13:11 (GMT) on Mon 2 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.
Issued at: