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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2018 Oct 30 1230 UTC

SIDC Forecast

Brillamenti solari

Quiet conditions (<50% probability of C-class flares)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
30 Oct 2018	069	005
31 Oct 2018	068	010
01 Nov 2018	068	004

Bulletin

Solar activity was at very low levels. The Sun remained spotless. No earth-directed coronal mass ejections (CMEs) were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

Solar wind speed was steady between 300 and 330 km/s (DSCOVR). Bz varied mostly between -3 and +4 nT. The direction of the interplanetary magnetic field (phi angle) was variable. Quiet geomagnetic conditions were observed.

Quiet geomagnetic conditions are expected to continue until the arrival of the wind stream associated with the small equatorial CH later today or on 31 October. This may result in unsettled geomagnetic conditions, with an isolated active episode possible.

Today's estimated international sunspot number (ISN): 000, based on 11 stations.

Solar indices for 29 Oct 2018

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	007
AK Wingst	002
Estimated Ap	001
Estimated international sunspot number	000 - Based on 17 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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