Viewing archive of Sunday, 22 June 2014

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2014 Jun 22 1422 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

Quiet (A<20 and K<4)

Solar protons

Quiet

	10cm flux	Ap
22 Jun 2014	099	005
23 Jun 2014	102	004
24 Jun 2014	107	022

Bulletin

Only one C-class flare took place in the past 24 hours: the C1.0 flare peaking at 19:46 UT on June 21 in the Catania sunspot group 89 (that, together with the Catania sunspot group 90, constitutes the NOAA AR 2093). It was accompanied by small coronal dimmings and a post-eruption arcade, but the associated CME (if any) was weak and narrow, so we do not expect it to arrive at the Earth. We expect flaring at the C-level in the Catania sunspot group 89 and in an unnumbered sunspot group that appeared from behind the east limb yesterday evening. The Earth is currently inside a slow (around 370 km/s) solar wind flow with average (around 5 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so until June 24, when we expect the arrival of the ICME associated with the partial halo CME on June 20, which may result in active to minor storm conditions.

Today's estimated international sunspot number (ISN): 063, based on 18 stations.

Solar indices for 21 Jun 2014

Wolf number Catania	///
10cm solar flux	101
AK Chambon La Forêt	007
AK Wingst	007
Estimated Ap	006
Estimated international sunspot number	065 - Based on 29 stations

Noticeable events summary

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

All times in UTC

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