Viewing archive of Monday, 6 July 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Jul 06 1230 UTC

SIDC Forecast

Solar flares

M-class flares expected (probability >=50%)

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
06 Jul 2015	131	019
07 Jul 2015	135	012
08 Jul 2015	138	008

Bulletin

NOAA 2381 developed rapidly and has some mixed magnetic polarities. It was the source of six C-class flares and the strongest event of the period, an M1.0 flare peaking at 08:44UT. The five other sunspot regions are small and quiet. No Earth-directed coronal mass ejections have been observed.

C-class flaring is expected, with a good chance on a low-level M-class flare.

Earth is still under the influence of the high speed, low density stream of the negative coronal hole (CH). Solar wind speed varied mostly between 500 and 600 km/s, with Bz varying between -6 and +6 nT. Episodes with active geomagnetic conditions were recorded during the early hours of 06 July. A positive equatorial CH is approaching the central meridian.

Quiet to unsettled geomagnetic conditions are expected, with a good chance on an active geomagnetic episode.

Today's estimated international sunspot number (ISN): 105, based on 21 stations.

Solar indices for 05 Jul 2015

Wolf number Catania	///
10cm solar flux	125
AK Chambon La Forêt	024
AK Wingst	///
Estimated Ap	027
Estimated international sunspot number	113 - Based on 32 stations

Noticeable events summary

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

All times in UTC

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