Boulder, CO – A powerful M7.4 solar flare erupted early Tuesday, November 5, launching a partial halo coronal mass ejection (CME) now under analysis by NOAA’s Space Weather Prediction Center (SWPC). Forecasters are determining whether the CME is directed toward Earth, which could influence satellite operations, power grids, and high-frequency radio communications later this week.
According to SWPC, the flare originated from active region 4274 at 6:19 a.m. EST (1119 UTC). The agency confirmed the event produced a partial halo CME — a large burst of solar plasma capable of interacting with Earth’s magnetic field. Scientists are evaluating data from multiple solar observatories to assess if the CME’s trajectory poses a geomagnetic threat.
SWPC noted that Region 4274 has produced several moderate (R1–R2) radio blackouts in recent days and could continue to generate strong activity through the week. Another significant flare (R3 or higher) remains possible as solar conditions remain unstable.
If the CME is found to be Earth-directed, a geomagnetic storm watch could be issued in the coming days, potentially creating visible auroras at higher latitudes.
The public can follow real-time updates and alerts at spaceweather.gov.
This article was produced by a journalist and may include AI-assisted input. All content is reviewed for accuracy and fairness.
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