The Sun unleashed an X1.1-class solar flare yesterday, triggering temporary radio blackouts across the daylight side of North America. The eruption was accompanied by a coronal mass ejection (CME) now racing toward Earth.
Radio communications were briefly disrupted by the flare's intense X-ray and extreme ultraviolet radiation, which ionized the upper atmosphere. The event was part of a period of heightened solar activity as the Sun approaches the peak of its 11-year cycle.
Space weather forecasters anticipate the CME will arrive on July 3, potentially lingering into the following day. Such impacts often coincide with major holiday periods, and this one falls near the July 4 weekend.
When it strikes, the CME could trigger geomagnetic storms that produce vivid aurora displays, possibly visible at mid-latitudes. The National Oceanic and Atmospheric Administration's Space Weather Prediction Center is monitoring the storm's intensity, which may reach G2 (moderate) levels.
Counter_argument: Some researchers caution that CME models remain imperfect, and the storm's actual geomagnetic impact could be weaker than forecast. Auroral visibility also depends heavily on local weather conditions and light pollution.