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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2017 May 13 1241 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
13 May 2017	069	008
14 May 2017	070	008
15 May 2017	070	015

Bulletin

There are no numbered active regions on the visible side of the Sun and solar activity is extremely low, without reported flares. The new active region is rotating from behind of the East solar limb, presently only partially on the visible side of the Sun. We expect a low level of flaring activity to persist in the coming hours. No Earth directed CMEs have been observed and the solar protons remained at background level in the past 24 hours.

The solar wind speed has decreased to value of about 300 km/s and the interplanetary magnetic field magnitude is about 2nT. The geomagnetic conditions are quiet and we expect it will remain so in the coming hours. The arrival of the fast solar wind, from the extended equatorial coronal hole which crossed central meridian yesterday, is expected on the midday of May 15 and it might induce active geomagnetic conditions.

Today's estimated international sunspot number (ISN): 000, based on 15 stations.

Solar indices for 12 May 2017

Wolf number Catania	///
10cm solar flux	069
AK Chambon La Forêt	012
AK Wingst	012
Estimated Ap	009
Estimated international sunspot number	007 - Based on 24 stations

Noticeable events summary

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

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