Publié: 2013 May 19 1327 UTC
Active (M-class flares expected, probability >=50%)
Minor storm expected (A>=30 or K=5)
Warning condition (activity levels expected to increase, but no numeric forecast given)
| Flux de 10 cm | Ap | |
|---|---|---|
| 19 May 2013 | 132 | 029 |
| 20 May 2013 | 130 | 014 |
| 21 May 2013 | 128 | 007 |
Only C-class flares occurred in past 24h. The strongest one was a C3.4 from NOAA AR 1750 with peak at 09:15 UT. NOAA AR 1748 has lost complexity and has now a beta-delta magnetic configuration, it still can produce M flares and, less likely, X-class flares. The 10 MeV proton flux has descended below the threshold of 10 protons/cm2-s-sr, for the first time since May 15. Geomagnetic activity has ranged from unsettled to active in past 24h. It can reach up to major storm levels when the May 17 CME arrives to the Earth today.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 087, sur la base de 12 stations.
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 132 |
| AK Chambon La Forêt | 019 |
| AK Wingst | 019 |
| Ap estimé | 022 |
| Nombre international de taches solaires estimé | 086 - Basé sur 14 stations |
| Jour | Commencer | Max | Fin | Loc | Force | OP | 10cm | Catania/NOAA | Types de sursaut radio | |
|---|---|---|---|---|---|---|---|---|---|---|
| Aucun | ||||||||||
Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive
Toutes les heures sont indiquées en UTC
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| Dernière classe X | 18/01/2026 | X1.9 |
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| Dernier orage géomagnétique | 20/01/2026 | Kp8 (G4) |
| Jours sans taches solaires | |
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