Viewing archive of Thursday, 9 July 2015

Daily bulletin on solar and geomagnetic activity from the SIDC

Issued: 2015 Jul 09 1230 UTC

SIDC Forecast

Solar flares

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

Geomagnetism

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

Solar protons

Quiet

	10cm flux	Ap
09 Jul 2015	126	008
10 Jul 2015	124	013
11 Jul 2015	122	018

Bulletin

NOAA 2381 simplified further and produced the only flare of the period, a C1.9 flare peaking at 03:37UT. The other regions are quiet. No obvious Earth-directed coronal mass ejections (CME) were observed.

Further C-class flaring is expected.

Solar wind speed varied between 350 and 400 km/s, with Bz fluctuating between -4 and +4 nT. Quiet to unsettled geomagnetic conditions were observed and are expected to persist.

Active geomagnetic conditions are possible starting late on 10 July, under the first effects of the equatorial coronal hole wind stream. A minor storming episode is not excluded.

Today's estimated international sunspot number (ISN): 111, based on 20 stations.

Solar indices for 08 Jul 2015

Wolf number Catania	146
10cm solar flux	129
AK Chambon La Forêt	010
AK Wingst	///
Estimated Ap	007
Estimated international sunspot number	124 - Based on 22 stations

Noticeable events summary

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

All times in UTC

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