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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2015 Jun 05 1230 UTC

SIDC Forecast

Brillamenti solari

C-class flares expected, (probability >=50%)

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
05 Jun 2015	123	008
06 Jun 2015	126	005
07 Jun 2015	129	011

Bulletin

Solar activity is on the C-level, with all the C-class flares originating from the Catania sunspot group 80 (NOAA AR 2361). The strongest flare of the past 24 hours was the C2.7 flare peaking yesterday at 15:19 UT. We expect flaring activity at the C-level, with an M-class flare possible but unlikely. A small low-latitude coronal hole in the southern hemisphere reached the solar central meridian yesterday. We expect the associated solar wind flow to arrive at the Earth late on June 7 - early on June 8. Given the small size of the coronal hole, we expect geomagnetic conditions to remain at the quiet to unsettled levels, with a stronger geomagnetic perturbation being unlikely. The Earth is currently inside a slow (around 290 km/s) solar wind flow with average (around 4 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so in the next 48 hours.

Today's estimated international sunspot number (ISN): 069, based on 22 stations.

Solar indices for 04 Jun 2015

Wolf number Catania	090
10cm solar flux	118
AK Chambon La Forêt	006
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	057 - Based on 29 stations

Noticeable events summary

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

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