Viewing archive of Monday, 7 April 2014

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2014 Apr 07 1301 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
07 Apr 2014	140	005
08 Apr 2014	140	014
09 Apr 2014	138	010

Bulletin

The Sun produced five C class flares during the past 24 hours, with the strongest event being a C4 flare taking place in Catania sunspot group 8 (NOAA AR 2026) at a peak time of 6:31UT on April 7. Sunspot group 7 (NOAA AR 2031) emerged as a new and quickly evolving region and produced three of past C class flares. Eruptive conditions are expected in the next 48 hours, with a slight chance for an isolated M class flare. The magnitude of the interplanetary magnetic field is around 10 nT and solar wind speed near 400 km/s. Geomagnetic conditions were quiet to unsettled during the past 24 hours. We expect quiet conditions till the arrival of a shock related to the CME of April 4, around UT noon of April 8, possibly resulting in unsettled to active conditions.

Today's estimated international sunspot number (ISN): 083, based on 18 stations.

Solar indices for 06 Apr 2014

Wolf number Catania	///
10cm solar flux	141
AK Chambon La Forêt	009
AK Wingst	003
Estimated Ap	003
Estimated international sunspot number	085 - Based on 21 stations

Noticeable events summary

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

All times in UTC

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