Viendo archivo del jueves, 4 diciembre 2025
Informe actividad solar
Informe de actividad Solar-Geofísica 2025 Dec 04 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 338 Publicado el 2200Z a las 04 Dec 2025IA. Análisis de regiones solares activas y de actividad desde 03-2100Z hasta 04-2100Z Solar activity has been at high levels for the past 24 hours.
There are currently 7 numbered sunspot regions on the disk.
IB. Pronóstico de la actividad solar
Solar activity is expected to be moderate
with a chance for X-class flares on days one, two, and three (05 Dec, 06
Dec, 07 Dec).
IIA. Resumen de la actividad geofísica 03-2100Z a 04-2100Z
The geomagnetic
field has been at active to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 771 km/s at 04/1112Z. Total IMF
reached 22 nT at 03/2231Z. The maximum southward component of Bz reached
-13 nT at 04/0226Z. Electrons greater than 2 MeV at geosynchronous
orbit reached a peak level of 446 pfu.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is expected
to be at unsettled to active levels on day one (05 Dec), quiet to active
levels on day two (06 Dec) and quiet to minor storm levels on day three
(07 Dec). Protons have a slight chance of crossing threshold on days
one, two, and three (05 Dec, 06 Dec, 07 Dec).
III. Probabilidades del evento 05 Dec a 07 Dec
| Clase M | 75% | 75% | 75% |
| Clase X | 25% | 25% | 25% |
| Protón | 15% | 15% | 15% |
| PCAF | green | ||
IV. Penticton 10.7cm flujo
Observado 04 Dec 220 Previsto 05 Dec-07 Dec 220/220/215 Media de 90 Días 04 Dec 146
V. Índices Geomagnéticos A
Observado Afr/Ap 03 Dec 020/033 Estimado Afr/Ap 04 Dec 022/034 Previsto Afr/Ap 05 Dec-07 Dec 015/020-010/012-012/018
VI. Probabilidades de Actividad Geomagnética 05 Dec a 07 Dec
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 35% | 30% | 40% |
| Tormenta Menor | 20% | 15% | 25% |
| Tormenta Mayor-Severa | 05% | 01% | 05% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 10% | 15% | 10% |
| Tormenta Menor | 30% | 30% | 20% |
| Tormenta Mayor-Severa | 55% | 45% | 65% |
All times in UTC
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Hechos clima espacial
| Último evento clase X | 24/04/2026 | X2.5 |
| Último evento clase M | 17/05/2026 | M1.4 |
| Últimas tormentas geomagnéticas | 16/05/2026 | Kp6- (G2) |
| Días sin manchas | |
|---|---|
| Last 365 days | 3 días |
| 2026 | 3 días (2%) |
| Último día sin manchas | 24/02/2026 |
| Promedio de manchas solares mensuales | |
|---|---|
| abril 2026 | 79.3 -6.6 |
| mayo 2026 | 90.4 +11.1 |
| Last 30 days | 99.3 +8.3 |
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