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Daily bulletin on solar and geomagnetic activity from the SIDC

Emesso: 2014 Jun 16 1230 UTC

SIDC Forecast

Valid from 1230 UTC, 16 Jun 2014 until 18 Jun 2014
Brillamenti solari

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

Geomagnetism

Quiet (A<20 and K<4)

Protoni solari

Quiet

10cm fluxAp
16 Jun 2014127007
17 Jun 2014130004
18 Jun 2014135006

Bulletin

The strongest flare during the past 24 hours was the M1.0 flare peaking at 00:01 UT today in the NOAA AR 2087 (Catania number 81). The photospheric magnetic field of this sunspot group decayed to the beta configuration, so we do not expect this group to produce significant flaring activity anymore. The flare was accompanied by coronal dimmings and a post-eruptive arcade indicating the eruption of a CME. However, no CME was detected by SOHO/LASCO due either to the narrow angular extent of the CME, or to the confinement of the eruption to the low corona. In any case, no significant geomagnetic impact is expected. We expect flaring activity to continue on the C-level, especially in the NOAA AR 2089 (Catania number 82) that now has beta-gamma-delta configuration of its photospheric magnetic field, and in still unnumbered active regions that just appeared from behind the south-east solar limb. An M-class flare is possible but not very likely. The Earth is currently inside a slow (around 350 km/s) solar wind flow with slightly elevated (around 6 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so.

Today's estimated international sunspot number (ISN): 051, based on 12 stations.

Solar indices for 15 Jun 2014

Wolf number Catania///
10cm solar flux130
AK Chambon La Forêt007
AK Wingst004
Estimated Ap004
Estimated international sunspot number054 - Based on 17 stations

Noticeable events summary

DayBeginMaxFineLocStrengthOP10cmCatania/NOAARadio burst types
15235000010017----M1.081/2087

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

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