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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Nov 30 1226 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
30 Nov 2014	178	006
01 Dec 2014	176	006
02 Dec 2014	178	005

Bulletin

NOAA 2222 produced 3 C-class flares over the last 24 hours, NOAA 2221 and 2219 each 2. The latter group was also the source of the strongest event, a C6.5 flare peaking at 13:49UT. These three groups have all some mixed magnetic polarities. The other groups were quiet. C-class flaring is expected, with a small chance on low-level M-class flares. CACTus reported two wide angle CMEs. The first wide CME (94 degrees) became visible in LASCO/C2 on 28 November at 22:00UT, and may be related to the filament eruption earlier that day. The other wide CME (110 degrees) was first observed on 29 November at 00:12UT. However, this seems to be a superposition of at least 2 separate CMEs, with the part first visible at 02:24UT related to a prominence eruption around 02:00UT at the northeast limb. None of the observed CMEs has an Earth-directed component. Solar wind speed was stable between 360 and 430 km/s. The IMF is directed towards the Sun, with Bz mostly positive varying between 0 and +10 nT, and an occasional negative excursion to -7 nT. The geomagnetic field was quiet (K<3). Geomagnetic conditions are expected to be quiet to unsettled.

Today's estimated international sunspot number (ISN): 101, based on 05 stations.

Solar indices for 29 Nov 2014

Wolf number Catania	///
10cm solar flux	177
AK Chambon La Forêt	008
AK Wingst	004
Estimated Ap	003
Estimated international sunspot number	118 - Based on 21 stations

Noticeable events summary

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

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