Previsione Meteo Spaziale - Discussione

Rilasciato: 2019 Apr 24 0030 UTC
Preparato dal Dipartimento di Commercio degli Stati Uniti, NOAA, Space Weather Prediction Center ed elaborato da SpaceWeatherLive.com

Attività solare

Sommario delle 24 ore
Solar activity was very low under a spotless solar disk. No Earth-directed CMEs were observed in available satellite imagery.
Previsione
Solar activity is expected to be very low for the forecast period (24-26 Apr).

Particelle energetiche

Sommario delle 24 ore
The greater than 2 MeV electron flux was at normal to moderate levels and the greater than 10 MeV proton flux remained at background values.
Previsione
The greater than 2 MeV electron flux is expected to be at normal to moderate levels on 24-25 Apr, with a chance for high levels on 26 Apr, due to CH HSS influences. The greater than 10 MeV proton flux is expected to continue at background levels.

Vento Solare

Sommario delle 24 ore
Solar wind parameters were indicative of a solar sector boundary crossing. Parameters were at nominal levels until approximately 23/1500 UTC when total field and density started to increase. Total field rose to a maximum of 11 nT at 23/2000 UTC while the Bz component deflected southward to -9 nT. Solar wind speed remained at nominal levels in the 330-415 km/s range. Phi angle was mostly oriented in a positive (away) solar sector until 23/1820 UTC when it switched into a negative (towards) sector.
Previsione
Late on 24 Apr to early on 25 Apr, a negative polarity CH HSS is expected to enhance the solar wind. Solar wind speeds in the 500-600 km/s range is likely based on STEREO A data.

Geospace

Sommario delle 24 ore
The geomagnetic field was quiet to unsettled.
Previsione
Quiet to active conditions are expected on 24-25 Apr due to CIR effects and associated CH HSS influence. Quiet to unsettled levels are expected on 26 Apr, with a chance for an isolated active period, due to residual CH HSS effects.

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Notizie sul meteo spaziale

Ultimo X-flare:2017/09/10X8.2
Ultimo M-flare:2017/10/20M1.0
Ultima tempesta geomagnetica:2019/03/17Kp5 (G1)
Numero di giorni senza macchie nel 2019:65
Attuali giornate senza macchie:4

Questo giorno nella storia*

Flares solari
12003M3.3
22001M3.1
32001M2.3
42001M2.1
52001M1.8
ApG
1201241G3
2199835G2
3200327G1
4199526G1
5201324G1
*dal 1994

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