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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2016 Feb 09 1230 UTC

SIDC Forecast

Brillamenti solari

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

Geomagnetism

Active conditions expected (A>=20 or K=4)

Protoni solari

Quiet

	10cm flux	Ap
09 Feb 2016	113	017
10 Feb 2016	111	008
11 Feb 2016	110	005

Bulletin

The only C-class flare of the past 24 hours (the C1.0 flare peaking at 06:01 UT today) occurred in the NOAA H-alpha plage 2491 and was associated with a filament eruption in its northern part. Although the current SOHO/LASCO data is very scarce, this filament eruption seems to be associated only with a narrow CME. We expect flaring activity on the C-level in the coming hours, especially from the NOAA AR 2494 that has beta-gamma configuration of its photospheric magnetic field. The solar wind speed is currently around 420 km/s. The interplanetary magnetic field magnitude was elevated recently (up to 15 nT earlier this morning; around 10 nT now). NOAA reported active geomagnetic conditions (Kp = 4). Unsettled to active geomagnetic conditions are expected in the coming hours.

Today's estimated international sunspot number (ISN): 095, based on 08 stations.

Solar indices for 08 Feb 2016

Wolf number Catania	///
10cm solar flux	115
AK Chambon La Forêt	012
AK Wingst	018
Estimated Ap	018
Estimated international sunspot number	093 - Based on 24 stations

Noticeable events summary

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

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