HF Radio: Weak or minor degradation of HF radio communication on sunlit side, occasional loss of radio contact. Navigation: Low-frequency navigation signals degraded for brief intervals. It's that time of …

There is a chance for R1-R2 (Minor-Moderate) radio blackouts, with a slight chance for R3 (Strong) events, through 27 Mar.

May 22, 2025 · A severe solar storm today could wreak havoc across multiple critical systems simultaneously. The power grid, aviation, satellite operations, military communications, and financial …

A solar storm is a disturbance on the Sun, which can emanate outward across the heliosphere, affecting the entire Solar System, including Earth and its magnetosphere, and is the cause of space weather …

Nov 11, 2025 · New USGS research shows how intense solar activity and large geomagnetic storms could impact much of the country.

Jan 20, 2026 · On Monday afternoon, the sun slugged the Earth with a massive flare, landing its most powerful energetic punch since the Great Halloween Storm of 2003. For the most part, we got off …

Feb 3, 2026 · The sun has continued to emit strong solar flares and geomagnetic storms ever since, leading to an increase in frequency of northern lights. Intense magnetic activity caused by sunspots …

Edited Event reports are preliminary solar event reports received at SWPC and manually reviewed and edited by the duty forecaster. SWPC compiles these lists from preliminary reports received from …

Mar 12, 2026 · Explore real-time updates and simulations of solar flares, solar activity, and auroras. Stay informed with NASA data on solar events and their impact on Earth's atmosphere.

Solar Cycle 25 has roared to life faster than forecasters expected. The sun's strengthening and increasingly tangled magnetic field repels cosmic rays from deep space.