A large filament eruption took place around Active Region 2987 – located at a geoeffective position – producing a C1 solar flare at 05:21 UTC on April 11, 2022. The event produced a full halo CME and WSA-Enlil model indicates arrival at Earth early on April 14. As a result, a G2 – Moderate geomagnetic…
An approximate 10-degree filament eruption, centered near S36E33, was observed in GONG H-alpha imagery beginning at 09:58 UTC on November 24, 2021. An associated coronal mass ejection (CME) was observed in SOHO/LASCO C2 imagery beginning at 14:12 UTC on November 24…
A glancing blow CME from the July 20 eruption could bring a chance for G1 – Minor geomagnetic storm condition on July 23, 2021. As a result, a G1 Geomagnetic Storm Watch is in effect. A ~4-degree solar filament centered at approximately N25E65 erupted from the…
Two coronal mass ejections (CMEs) with Earth-directed components were produced on the Sun on May 9, 2021. The impact is expected early Wednesday, May 12. Active Region 2833 produced a long-duration C-class solar flare measuring C4.0 at its peak at 14:49 UTC on May 9…
A solar filament eruption took place shortly before 12:00 UTC on February 20, 2021, producing a partial-halo CME. Analysis suggests a glancing blow from the periphery of the CME is likely on February 23 or 24. The CME signature was first observed in SOHO/LASCO C2…
Unsettled to active geomagnetic field levels are possible on January 5, 2021, due to the onset of an anticipated Solar Sector Boundary Crossing (SSBC) followed by coronal hole influence late in the day. G1 – Minor geomagnetic storm conditions are likely on January 6…
Two plasma filament eruptions were detected on the Sun on July 5, 2018, and it seems at least one weak Earth-directed Coronal Mass Ejection (CME) was produced; ETA July 9 or 10. In addition, a relatively strong farside eruption took place on July 5 and its CME (not…
A solar filament was observed lifting off the Sun's northeastern quadrant beginning at approximately 04:45 UTC on November 25, 2017. An associated weak Coronal Mass Ejection (CME) was observed in SOHO/LASCO C2 and C3 imagery and the analysis shows a potential…
An approximate 14 degree solar filament eruption began at 20:25 UTC on April 9, 2017, from the northeast quadrant of the Sun. The event generated a coronal mass ejection (CME) and a glancing blow is possible on April 15. The CME was first observed in SOHO/LASCO C2…
A filament in Sun's northeast quadrant erupted between 15:00 and 17:00 UTC on Saturday, October 8, 2016, producing an asymmetric, partial-halo CME. The CME, although faint, was first observed in LASCO C2 imagery beginning 00:48 UTC on October 9. It reached ACE…
