Bulletins prévisionnels de la Météo Spatiale

Publié: 2020 Apr 08 1230 UTC
Préparés par le Département américain du Commerce, la NOAA, le Centre de Prévision de la Météo spatiale et traités par SpaceWeatherLive.com

Activité solaire

Résumé des dernières 24 heures
Solar activity was very low. Region 2759 (N28, L=263) remained spotless, but active, producing low level flares early in the UTC day. There were no Earth-directed CMEs observed in available coronagraph imagery.
Prévisions
Solar activity is expected to be at very low levels on 08-10 Apr.

Particules énergétiques

Résumé des dernières 24 heures
The greater than 2 MeV electron flux reached moderate levels. The greater than 10 MeV proton flux maintained background levels.
Prévisions
The greater than 2 MeV electron flux is expected to continue at moderate levels through 10 Apr. The greater than 10 MeV proton flux is expected to continue at background levels.

Vent Solaire

Résumé des dernières 24 heures
Solar wind parameters underwent a slight enhancement during the latter half of the period. Solar wind speeds steadily increased from 350-400 km/s. Total field increased to near 10 nT, and Bz was mostly not of note until late in the period when it began to deviate southward in excess of -5 nT. Phi was negative.
Prévisions
Solar wind parameters are likely to be at nominal levels through 9 Apr, then become elevated late on 10 Apr with the arrival of a polar-connected, negative polarity CH HSS. There is a slight chance for an isolated disturbance on 8 Apr as a result of a smaller, negative CH HSS that is near a geoeffective position. Otherwise background levels are expected for much of the next 3 days until the main feature arrives late on 10 Apr.

Géospatial

Résumé des dernières 24 heures
The geomagnetic field was quiet to unsettled.
Prévisions
A small disturbance may briefly elevate levels to unsettled on 8 Apr, otherwise quiet conditions are anticipated for most of the forecast period. Day 3 (10 Apr) is expected to be mostly quiet until late in the UTC day when levels are expected to become unsettled with the arrival of a polar-connected, negative polarity CH HSS.

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La Météo Spatiale en faits

Dernière classe X:10/09/2017X8.2
Dernière classe M:20/10/2017M1.0
Dernier orage géomagnétique:19/02/2020Kp5 (G1)
Nombre de jours sans taches solaires en 2020:75
Étirement actuel jours sans taches solaires:4

A ce jour dans l'histoire*

Éruptions solaires
12000M2.0
22000M1.8
32015M1.4
41999M1.1
52000C8.2
ApG
1200163G3
2199440G1
3199534G1
4200322G1
5201715
*depuis 1994

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