Bespreking van het voorspelde ruimteweer

Datum verslag: 2026 Jun 06 1230 UTC
Dit rapport werd door opgemaakt door het Space Weather Prediction Center - NOAA en verwerkt door Poollicht.be

Zonneactiviteit

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Solar activity remained at low levels with isolated C-class flare activity observed. Region 4462 (N16E27, Dai/beta) produced a C4.7 flare at 05/2245 UTC, the strongest of the period, as the region underwent evolution and gained additional spots. Region 4455 (N15W55, Dsi/beta-gamma) continued to display signs of gradual decay as it produced a C4.1 flare at 05/1503 UTC. Region 4456 (N17W27, Cro/beta-gamma), which had previously decayed to plage, underwent rapid flux emergence as it reformed and exhibited a mixed polarity configuration. Region 4458 (S05W42, Dao/beta) underwent consolidation and growth in its trailing penumbra while forming a weak delta signature, but was relatively quiet in comparison to other active regions. Finally, new Region 4464 (S12E58, Cai/beta) was numbered. The halo CME first observed in GOES CCOR-1 imagery at approximately 05/0945 UTC was determined to have originated on the far side of the Sun. No Earth-directed CMEs were observed in available coronagraph imagery.

Voorspelling

Solar activity is expected to remain at low levels, but with a high chance (50%) for isolated M-class flare activity through 08 June.

Energetische deeltjes

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The greater than 2 MeV electron flux at geosynchronous orbit was at low to moderate levels. The greater than 10 MeV proton flux remained at background levels.

Voorspelling

The greater than 2 MeV electron flux at geosynchronous orbit is anticipated to rise to high levels on 06 June in response to CME effects, and remain high through 08 June. The greater than 10 MeV proton flux is expected to remain at background levels barring a new significant event particularly from Regions 4455 or 4458.

Zonnewind

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Solar wind parameters reflected CME arrivals from the 03 June events beginning at 05/0425 UTC. Total field jumped from 7 nT to 17 nT with initial shock arrival and then reached a peak of 20 nT. The Bz component of the IMF was initially northward with shock arrival, but eventually rotated southward reaching extended periods of southward deflection measuring up to -17 nT. Solar wind speeds initially increased to around 570 km/s during shock arrival, but then gradually increased over the course of the period to a range between 640-740 km/s. Total field began to settle and return to nominal-like levels after ~05/1920 UTC with what was likely magnetic cloud or magnetic cloud periphery passage. Phi was predominantly positive with brief excursions into a negative solar sector.

Voorspelling

An additional disturbance to the solar wind environment cannot be ruled out primarily for the remainder of 06 June due to any lingering CME influences. Lingering CME and possible positive polarity CH HSS influences are expected to wane over the course of 07 and 08 June.

Geospace

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Geomagnetic field activity reached G1 (Minor) geomagnetic storm levels with an isolated bout of G2 (Moderate) storming during the 1500-1800 UTC reporting period.

Voorspelling

G1-G2 (Minor-Moderate) geomagnetic storming is expected during the early portions of 06 June due to lingering CME effects. Quiet to unsettled conditions are expected on 07-08 June as any CME and weak CH HSS effects slowly come to a close.