The FCC recently released this public notice:

PUBLIC SAFETY AND HOMELAND SECURITY BUREAU SEEKS COMMENT ON THE IMPACTS OF THE MAY 2024 GEOMAGENTIC STORM ON THE U.S. COMMUNICATIONS SECTOR
PS Docket No. 24-161

Comments Due: June 24, 2024

The Federal Communications Commission’s Public Safety and Homeland Security Bureau (PSHSB or Bureau) seeks comment on any observed impacts to communications that resulted from the May 2024 severe geomagnetic storm. On Thursday, May 9, 2024, the National Weather Service Space Weather Prediction Center (SWPC) issued a severe (G4) Geomagnetic Storm Watch, forecasting a series of coronal mass ejections (CMEs) that merged with the Earth’s electromagnetic fields between May 7-11, 2024.1 On May 11, 2024, the storm reached extreme (G5) conditions, the first time this severity has been observed since 2003.2 According to the SWPC, CMEs are large expulsions of plasma and magnetic field from the Sun’s corona.3 Electromagnetic currents generated by CMEs, when merged with the Earth’s electromagnetic fields, may distort the propagation of radio frequency waves.

On May 11, 2024, the FCC High Frequency (HF) Direction Finding Center, which supports the public safety community and federal partners by locating interference to radio spectrum below 30 MHz, observed significant disturbance in the propagation of HF radio signals. This disturbance resulted in the disruption of voice and data communications passed over HF frequencies. To better understand the impacts of the geomagnetic storm on the U.S. communications sector, the Bureau is requesting information from communications service providers and the public regarding disruptions in communications between May 7 and 11, 2024, that it believes to be a result of the storm. The Bureau is encouraging commenters to provide any available evidence, particularly electromagnetic spectrum analyses, imagery, or chronological logs relating the storm’s impacts. Where possible, the Bureau asks that commenters include the description of the impacts; make and model of affected communications equipment, which could include transmitters, receivers, transceivers, switches, routers, amplifiers etc.; make, model, and type of affected antennae and their composition; frequencies affected; type and composition of cable adjoining communications equipment and the antennae, if applicable; duration of the impact; and any residual effects observed in the hours following restoration.

You can find the entire document, including footnotes and instructions on how to file a comment, at https://docs.fcc.gov/public/attachments/DA-24-493A1.pdf. It will be interesting to see a report on this after the comments are in.