• Asymmetric halo CME following April 1 filament eruption forecast to deliver a glancing blow on April 4

    ByTeo Blašković

    A filament eruption associated with a C6.1 solar flare from Active Region 4403 at 23:28 UTC on April 1, 2026, produced an asymmetric halo coronal mass ejection. Initial modeling indicates the bulk of the ejecta is directed north of Earth’s orbit, with a possible glancing impact early on April 4 that could trigger minor to moderate geomagnetic storming. Current geomagnetic conditions remain influenced by a combined coronal hole high-speed stream and prior CME activity.

  • Geomagnetic storm reaches G3 levels after March 18 CME impacts Earth

    ByTeo Blašković

    A G3 – Strong geomagnetic storm developed late on March 20 into early March 21, 2026, after a coronal mass ejection that left the Sun on March 18 impacted Earth. The storm intensified after at least two CME arrivals, with solar wind speeds reaching 567 km/s and the interplanetary magnetic field turning strongly southward to −28 nT.

  • G1 – Minor geomagnetic storm underway, NOAA forecasts possible G2 conditions

    ByTeo Blašković

    A G1 – Minor geomagnetic storm is in progress on February 22, 2026, with Kp index values reaching 5 since 03:00 UTC, according to the NOAA Space Weather Prediction Center (SWPC). At 08:00 UTC, the agency issued a G2 – Moderate warning valid through 15:00 UTC, forecasting a possible rise to Kp 6 later in the day as solar-wind conditions remain elevated.

  • G2 – Moderate geomagnetic storm in progress, auroras possible from New York to Washington state

    ByTeo Blašković

    A positive polarity coronal hole high speed stream currently interacting with Earth’s magnetic field produced a G2 – Moderate geomagnetic storm, with the K-index peaking at 6 at 20:00 UTC on February 16, 2026. The storm may generate visible aurora across northern U.S. latitudes and cause minor operational effects in satellite and power systems.

  • Geomagnetic storms possible this weekend as CME from M1.0 solar flare heads toward Earth

    ByTeo Blašković

    An M1.0 solar flare erupted from Active Region 4373 at 08:58 UTC on February 13, 2026, launching a coronal mass ejection (CME) expected to glance Earth around February 15–16. SWPC forecasts G1 – Minor to isolated G2 – Moderate geomagnetic storm conditions as the CME interacts with a co-rotating interaction region and a positive-polarity coronal-hole high-speed stream.

  • Impulsive X4.2 solar flare erupts from geoeffective Active Region 4366

    ByTeo Blašković

    An impulsive X4.2 solar flare erupted from geoeffective Active Region 4366 at 12:13 UTC on February 4, 2026. The flare originated from a magnetically complex beta-gamma-delta region that produced dozens of M- and 5 other X-class flares since February 1. Its location near the central solar disk raises the possibility of Earth-directed coronal mass ejections (CMEs) this week.