Viendo archivo del jueves, 18 diciembre 2025
Informe actividad solar
Informe de actividad Solar-Geofísica 2025 Dec 18 2200 UTCPreparado por NOAA © SWPC y procesado por SpaceWeatherLive.com
Informe conjunto USAF/NOAA de actividad Solar y Geofísica
SDF Número 352 Publicado el 2200Z a las 18 Dec 2025IA. Análisis de regiones solares activas y de actividad desde 17-2100Z hasta 18-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 5 numbered sunspot regions on the disk.
IB. Pronóstico de la actividad solar
Solar activity is expected to be low with
a slight chance for an M-class flare on days one, two, and three (19
Dec, 20 Dec, 21 Dec).
IIA. Resumen de la actividad geofísica 17-2100Z a 18-2100Z
The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 723 km/s at 18/0659Z. Total IMF
reached 7 nT at 17/2227Z. The maximum southward component of Bz reached
-7 nT at 17/2232Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 2693 pfu.
IIB. Pronóstico de la actividad geofísica
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (19 Dec, 20 Dec)
and quiet levels on day three (21 Dec).
III. Probabilidades del evento 19 Dec a 21 Dec
| Clase M | 15% | 15% | 15% |
| Clase X | 01% | 01% | 01% |
| Protón | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7cm flujo
Observado 18 Dec 116 Previsto 19 Dec-21 Dec 115/110/110 Media de 90 Días 18 Dec 149
V. Índices Geomagnéticos A
Observado Afr/Ap 17 Dec 010/018 Estimado Afr/Ap 18 Dec 014/018 Previsto Afr/Ap 19 Dec-21 Dec 009/010-008/008-005/005
VI. Probabilidades de Actividad Geomagnética 19 Dec a 21 Dec
| A. Latitudes Medias | |||
|---|---|---|---|
| Activo | 25% | 20% | 10% |
| Tormenta Menor | 10% | 05% | 01% |
| Tormenta Mayor-Severa | 01% | 01% | 01% |
| B. Latitudes Altas | |||
|---|---|---|---|
| Activo | 15% | 15% | 15% |
| Tormenta Menor | 25% | 25% | 20% |
| Tormenta Mayor-Severa | 35% | 25% | 10% |
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 | 89.2 +9.9 |
| Last 30 days | 99.3 +7.6 |
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