Bespreking van het voorspelde ruimteweer

Datum verslag: 2020 Nov 25 0030 UTC
Dit rapport werd door opgemaakt door het Space Weather Prediction Center - NOAA en verwerkt door Poollicht.be

Zonneactiviteit

Samenvatting afgelopen 24h
Solar activity was at low levels. Region 2783 (S20W19, Cso/beta) began to decay near the end of the period, losing many of its trailer and intermediate spots. Region 2785 (S20E44, Hsx/alpha) also began to exhibit signs of decay, yet managed to produce a couple of low-level C1 flares during the period. Region 2786 (S15E59, Cko/beta) developed a small trailer spot but remained mostly quiet. Additional activity included a CME first visible in LASCO C2 imagery at 24/0500 UTC. This feature is likely associated with a C1 flare from Region 2785. Analysis determined this CME to be off the Sun-Earth line to the SE. No Earth-directed CMEs were observed in coronagraph imagery.
Voorspelling
Solar activity is expected to be at low levels, with C-flares likely on 25-27 Nov.

Energetische deeltjes

Samenvatting afgelopen 24h
The greater than 2 MeV electron flux was at normal to high levels, and the greater than 10 MeV proton flux was at background levels.
Voorspelling
The greater than 2 MeV electron flux is expected to reach high levels on 25-27 Nov due to CH HSS influence. The greater than 10 MeV proton flux is expected to persist at background levels all three days.

Zonnewind

Samenvatting afgelopen 24h
Solar wind parameters continued to reflect the steady return to a near background solar wind regime. Solar wind speed gradually decreased from just under 500 to near 400 km/s by the end of the period. Total field averaged near 3 nT, and the Bz component was negligible. Phi angle was mostly oriented in a predominately positive solar sector.
Voorspelling
The solar wind environment is expected to continue near background levels on 25 Nov. By 26 Nov, weak enhancements from the positive polarity extensions from the north polar crown are expected to move into a geoeffective position. These enhancements are expected to begin tapering off late on 27 Nov.

Geospace

Samenvatting afgelopen 24h
The geomagnetic field was at quiet levels.
Voorspelling
The geomagnetic field is expected to be at quiet to unsettled levels, with isolated active periods possible, throughout the forecast period (25-27 Nov).

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Ruimteweer feitjes

Laatste X-klasse uitbarsting10/09/2017X8.2
Laatste M-klasse uitbarsting29/05/2020M1.1
Laatste geomagnetische storm22/11/2020Kp5 (G1)
Zonnevlekkenloze dagen
Afgelopen 365 dagen244 dagen
2020211 dagen (64%)
Laatste zonnevlekkenloze dag16/11/2020

Deze dag in de geschiedenis*

Zonnevlammen
12000X1.9
22001X1.1
32000M8.2
42000M3.5
51999M2.0
ApG
1201631G1
2199918G1
3200420
4200615
5200215
*sinds 1994

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