Previsioni Meteorologiche Spaziali - Discussione

Emesso: 2024 Dec 23 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 activity reached moderate levels (R1/Minor). Region 3932 (S17E42, Ekc/beta-gamma) produced an impulsive M1.1 flare at 22/2049 UTC; the largest event of the period. Development continued among the cluster of active regions in the SE quadrant. No Earth-directed CMEs were detected in available data.

Previsione

M-class flare activity is likely (R1/R2-Minor/Moderate), with a slight chance for an isolated X-class flare (R3/Strong), over 23-25 Dec.

Particelle energetiche

Sommario di 24 ore

The greater than 10 MeV proton flux remained elevated above background but well below the S1 threshold, mostly due to activity that erupted on the far side of the Sun over 20 Dec. The greater than 2 MeV electron flux was at normal and moderate levels.

Previsione

There remains a slight chance for the greater than 10 MeV proton flux to reach S1 (Minor) levels over 23-25 Dec. The greater than 2 MeV electron flux is expected to continue at normal to moderate levels through 25 Dec.

Vento Solare

Sommario di 24 ore

Solar wind parameters were enhanced this period. Total field reached a peak of 9 nT and Bz varied between +8/-7 nT. Solar wind speeds ranged between ~500-700 km/s through most of the period. Phi angle was negative.

Previsione

Enhanced solar wind conditions are expected to prevail over 23-25 Dec. Negative polarity CH HSS influences are expected over 23-25 Dec and there is a chance to see the glancing influences of a CME (from 20 Dec) on 24 Dec.

Geospaziale

Sommario di 24 ore

The geomagnetic field ranged from quiet to unsettled levels.

Previsione

The geomagnetic field is expected to be quiet to unsettled, with a chance for isolated active periods, over 23-25 Dec due to negative polarity CH HSS influences. An additional enhancement is possible on 24 Dec from the glancing influences of a CME that left the Sun on 20 Dec.