Official Space Weather Advisory issued by NOAA Space Weather Prediction Center

Boulder, Colorado, USA



SPACE WEATHER ADVISORY OUTLOOK #25-17

2025 May 25 at 7:47 p.m. MDT (2025 May 26 0147 UTC)



**** SPACE WEATHER OUTLOOK ****



Summary For May 19-25


R1 (Minor) radio blackouts were observed on 19 May, 21 May, 24 May, and 25 May due to activity from the Sun's limb, Region 4087 and Region 4098.



R2-R3 (Moderate-Strong) radio blackouts were observed on 25 May due to activity from Region 4098.



No other space weather storms were observed during the summary period.



Outlook For May 26-June 1



R1-R2 (Minor-Moderate) radio blackouts are likely over 26-28 May due to flare potential from Region 4098.



No other space weather storms are expected during the summary period.



Data used to provide space weather services are contributed by NOAA,

USAF, NASA, NSF, USGS, the International Space Environment Services 

and other observatories, universities, and institutions. More 

information is available at SWPC's Web site http://swpc.noaa.gov

---

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.