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.
Space weather notifications
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Aurora forecasts
Northern Hemisphere
Muted conditions are expected with no significant aurora expected.
Southern Hemisphere
Muted conditions are expected with no significant aurora expected.
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Forecast overview
Space Weather Forecast Headline: No significant activity forecast.
Analysis of Space Weather Activity over past 24 hours
Solar Activity: Solar activity was Low. There are six sunspot regions on the visible disc. One slightly complex region in the northwest showing recent slight growth in areal extent. The large region in the northeast remains simple and inactive. A new region has rotated onto the southeast of the disk but appears simple at present. All other regions are small and simple.
No Earth-directed coronal mass ejections have been observed.
Solar Wind / Geomagnetic Activity: Solar wind speeds were steady until 06/0145UTC, when a suspected minor transient increased speeds but remained at slightly elevated. Total magnetic field strength was mostly Weak, with brief periods of Moderate between 06/0000-0400UTC, and a peak observed at 06/0215UTC. The north-south component remained weak but mostly negative throughout. Geomagnetic activity was Quiet to Unsettled (Kp 1-3).
Energetic Particles / Solar Radiation: The count rate of energetic particles (high energy protons) was at background levels with no solar radiation storms observed.
Four-Day Space Weather Forecast Summary
Solar Activity: Low to Very Low activity is expected through the period, with a slight chance of isolated Moderate activity.
Solar Wind / Geomagnetic Activity: No Earth-directed coronal mass ejections have been observed. Solar wind speeds are slightly elevated from waning high speed stream and weak transients, and should generally decline. The next enhancement is a coronal hole, this most probably connecting on 08 Apr.
Geomagnetic activity is forecast to be mainly Quiet to Unsettled through 06 Apr, but with a decreasing chance of Unsettled intervals into 07 Apr. There may be a further risk of Unsettled to Active intervals and a slight chance of G1/Minor geomagnetic storms on 08 and 09 Apr due to the connection to a coronal hole high speed stream.
Energetic Particles / Solar Radiation: The count rate of energetic particles (high energy protons) is expected to remain at background levels.
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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.
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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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