Previsioni Meteorologiche Spaziali - Discussione

Emesso: 2025 Feb 22 0030 UTC
Preparati dal Dipartimento di Commercio degli Stati Uniti, NOAA, Centro di Previsione Meteorologica Spaziale e elaborati da SpaceWeatherLive.com

Attività solare

Sommario di 24 ore

Solar flare activity reached moderate levels. Region 4000 (N17E07, Dai/beta) produced two R1 (Minor) events, the largest of which was an M3.3/1b flare at 21/1215 UTC. Region 4000, alongside Region 3998 (S14W02, Eai/beta-gamma-delta), exhibited continued development over the past 24 hours. The remaining numbered regions on the visible disk were either mostly stable or in gradual decay. Other activity included a slow-moving eruption near Region 4000 early in the UT day. Analysis and modelling of the CME suggested the ejecta was headed north of Earth. No other potentially Earth-directed CMEs were identified in available coronagraph imagery.

Previsione

Solar activity is expected to be low with a chance for isolated M-class (R1-R2, Minor-Moderate) activity and a slight chance for X-class (R3, Strong) activity over 22-24 Feb.

Particelle energetiche

Sommario di 24 ore

The greater than 2 MeV electron flux at geostationary orbit was at normal background to moderate levels. The greater than 10 MeV proton flux was at background levels.

Previsione

The greater than 2 MeV electron flux is expected to continue at normal to moderate levels over 22-24 Feb. There is a slight chance that the greater than 10 MeV proton flux reaches S1 (Minor) levels through 24 Feb due primarily to the flare potential from Regions 4000 and 3998.

Vento Solare

Sommario di 24 ore

Solar wind parameters were at nominal levels. Total magnetic field strength averaged near 5 nT, solar wind speeds steadily decreased from ~400 km/s to ~315 km/s by the end of the reporting period, and Phi angle was predominantly oriented in the the negative sector.

Previsione

Solar wind parameters are expected to remain at or near nominal levels through 24 Feb.

Geospaziale

Sommario di 24 ore

The geomagnetic field was quiet to unsettled.

Previsione

The geomagnetic field is expected to be at mostly quiet levels over 22-24 Feb.