Affichage des archives de dimanche, 24 juillet 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Jul 24 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Warning condition (activity levels expected to increase, but no numeric forecast given)

	Flux de 10 cm	Ap
24 Jul 2016	081	003
25 Jul 2016	079	008
26 Jul 2016	077	013

Bulletin

During the period, NOAA 2567 produced 8 C-class flares as well as one M-class event, an M2.0 flare peaking at 06:20UT. NOAA 2565 has quietly rounded the west limb. No earth-directed coronal mass ejections (CMEs) were observed.

Mostly C-class flares are expected, with still a good chance on an M-class event. The warning for a potential proton event remains in effect.

The interplanetary magnetic field was mostly directed towards the Sun (negative), except for a 3-hours positive sector starting 07:30UT. Solar wind speed varied between 350 and 440 km/s and Bz between -7 and +6 nT (mostly positive). Quiet geomagnetic conditions were observed.

Quiet to unsettled geomagnetic conditions are expected. Active episodes are possible starting late on 25 July or on 26 July, in response to the arrival of the high speed stream from the small northern positive coronal hole, as well as of the low-probability glancing blow from the 23 July CME.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 014, sur la base de 21 stations.

Indices solaires pour 23 Jul 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	086
AK Chambon La Forêt	012
AK Wingst	010
Ap estimé	009
Nombre international de taches solaires estimé	030 - Basé sur 26 stations

Résumé des événements marquants

Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive

Toutes les heures sont indiquées en UTC

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