One single C-class flare was observed with peak at 10:24 UT on June 6, originating from Catania sunspot group 69 (NOAA AR 2080).  This sunspot region has increased in size and evolved to a region with beta-gamma configuration. Also Catania sunspot group 71 (NOAA AR 2082) has grown, while all other regions remained stable. Analysis of the CME mentioned in yesterday’s ursigram (with first measurement at 15:24 UT on 4 June) revealed no geoeffective part of this CME is expected to arrive. Flaring activity is expected to be at C-class level, with a slight chance for an M-class flare. No geoeffective CMEs were observed.Currently we are experiencing stable solar wind conditions with a solar wind speed around 350 km/s and a magnitude of the interplanetary magnetic field near 5 nT. Quiet geomagnetic conditions were observed and are expected to continue until the arrival of a high speed stream. This might result in time slots with unsettled to active geomagnetic conditions from later today (UT time) on.
SIDC