A major solar flare measuring X4.5 erupted from Active Region 3825 at 15:29 UTC on September 14, 2024. The event started at 15:13 and ended at 15:47 UTC. This is the fifth strongest solar flare of Solar Cycle 25.
R3 (Strong) HF Radio Blackout Event on 14 Sep 2024published: Saturday, September 14, 2024 16:27 UTC
An X4.5 flare occurred at approximately 14/1529 UTC, resulting in R3 (Strong) HF radio blackouts. Continue to monitor our [web page](https://www.swpc.noaa.gov/) for updated forecasts, alerts, and warnings.Â
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A major solar flare measuring X4.5 erupted from Active Region 3825 at 15:29 UTC on September 14, 2024. The event started at 15:13 and ended at 15:47 UTC. This is the fifth strongest solar flare of Solar Cycle 25.
Video Link – https://www.youtube.com/watch?v=EIQM0P1QNyk
Video courtesy: NASA SDO AIA Telescope
[https://www.swpc.noaa.gov/news/r3-strong-hf-radio-blackout-event-14-sep-2024](https://www.swpc.noaa.gov/news/r3-strong-hf-radio-blackout-event-14-sep-2024)
R3 (Strong) HF Radio Blackout Event on 14 Sep 2024published: Saturday, September 14, 2024 16:27 UTC
An X4.5 flare occurred at approximately 14/1529 UTC, resulting in R3 (Strong) HF radio blackouts. Continue to monitor our [web page](https://www.swpc.noaa.gov/) for updated forecasts, alerts, and warnings.Â