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 high latitudes.
Southern Hemisphere
No enhancements to the aurora are forecast through this period. Any visibility will be restricted to high latitudes.
Issued at: 13:09 (GMT) on Thu 12 Nov 2026
Forecast overview
Space Weather Forecast Headline: Chance of Moderate class flares.
Analysis of Space Weather Activity over past 24 hours
Solar Activity: Solar activity has been Moderate, with the peak flare at 11/2121 UTC from the largest region on the disc. This region is in the southwest and has reduced in penumbral area, which has had the effect of reducing its magnetic complexity. All other spots are small and simple, with several exhibiting a decaying trend.
No Earth-directed Coronal Mass Ejections (CMEs) were observed.
Solar Wind / Geomagnetic Activity: Solar winds showed a continuing decline of coronal hole fast winds. Wind speed fell gradually from elevated levels to slightly elevated. Total Interplanetary Magnetic Field was weak, with the north-south component varying weakly. Geomagnetic activity was Quiet to Unsettled (Kp0-3).
Energetic Particles / Solar Radiation: The count rate of energetic particles (high energy protons) persisted at background levels.
Four-Day Space Weather Forecast Summary
Solar Activity: Activity is expected to be mostly at Low levels, but with a chance of further isolated Moderate-class flares from the larger region in the southwest.
Solar Wind / Geomagnetic Activity: There are no Earth-directed CMEs. Coronal hole fast winds are expected to continue gradually easing. Wind speeds are currently slightly elevated, and are likely to erratically ease to background levels by Days 2-3 (13-14 Nov). No further enhancements are expected during this period.
Mainly Quiet (Kp0-2) geomagnetic conditions are expected, perhaps with isolated Unsettled intervals (Kp3), these mainly on Day 1 (12 Nov).
Energetic Particles / Solar Radiation: Solar radiation storms are highly unlikely, with just a very slight chance of exceeding the S1/Minor radiation storm level.
Issued at: 13:07 (GMT) on Thu 12 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: