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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Jul 06 1223 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

	10cm flux	Ap
06 Jul 2014	198	005
07 Jul 2014	202	004
08 Jul 2014	205	004

Bulletin

There are currently 11 sunspot groups visible on the solar surface. NOAA 2108 and 2109 are the most prominent regions. NOAA 2108 increased its sunspot area and developed a weak delta in its trailing main spot. NOAA 2109 also developed a weak delta, located in the eastern portion of the main (leading) spot. Only three C-class flares were reported. The strongest, a C4.0 peaking on 6 July at 00:25UT, had its source in NOAA 2109, whereas NOAA 2108 produced a C3.5 flare peaking at 07:00UT. C-class flares are expected, with a chance on an M-class flare from NOAA 2108 and 2109. Solar wind speed declined from 290 to 250 km/s until 09:30UT, when a sudden increase back to 290 km/s was observed. Bz varied the entire period between -6 and +4 nT. Geomagnetic conditions were quiet and are expected to remain so as Earth is crossing different sectors of the heliospheric current sheet.

Today's estimated international sunspot number (ISN): 135, based on 12 stations.

Solar indices for 05 Jul 2014

Wolf number Catania	///
10cm solar flux	193
AK Chambon La Forêt	008
AK Wingst	004
Estimated Ap	004
Estimated international sunspot number	152 - Based on 14 stations

Noticeable events summary

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

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