Space Weather Message Code: SUMX01

Serial Number: 201

Issue Time: 2025 Nov 11 1023 UTC



SUMMARY: X-ray Event exceeded X1

Begin Time: 2025 Nov 11 0949 UTC

Maximum Time: 2025 Nov 11 1004 UTC

End Time: 2025 Nov 11 1017 UTC

X-ray Class: X5.1
Optical Class: 3b

Location: N28W12

NOAA Scale: R3 - Strong



NOAA Space Weather Scale descriptions can be found at

www.swpc.noaa.gov/noaa-scales-explanation



Potential Impacts: Area of impact consists of large portions of the sunlit side of Earth, strongest at the sub-solar point.

Radio - Wide area blackout of HF (high frequency) radio communication for about an hour.

---

Thank you for using the Product Subscription Service. If you would like to remove a product subscription or update the personal information in your account, go to the Product Subscription Site. Please do not use the from address for correspondence, as it is not monitored. For comments or help, please contact SWPC Help.