Richmond, Virginia – A rare G4 (Severe) solar storm is expected to impact Earth on Jan. 20, prompting increased monitoring of Virginia’s power grid and critical technology systems as federal space weather officials track incoming solar activity.
According to the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center, a coronal mass ejection (CME) launched from the Sun late last week is forecast to arrive late Sunday into Monday. G4-level geomagnetic storms are uncommon and can interfere with power transmission systems, satellite operations, GPS accuracy, and some radio communications, particularly across large and interconnected electrical networks.
Virginia’s role as a major energy corridor and data-center hub, combined with its proximity to military installations, ports, and aviation routes, increases the importance of infrastructure stability during severe space weather events. While the state lies south of the regions most exposed to geomagnetic effects, NOAA officials emphasize that widespread power outages are not expected, though utilities may take precautionary measures.
For most residents, the solar storm itself will not be noticeable. Experts explain that geomagnetic activity can introduce electrical currents into long transmission lines, slightly reducing the grid’s margin for error. Grid operators may increase system monitoring, adjust loads, or implement protective actions if conditions intensify.
Cell phone service and internet connectivity are expected to remain largely unaffected. However, minor GPS inaccuracies are possible, particularly affecting aviation operations, maritime navigation along the Chesapeake Bay and Atlantic coast, and precision timing systems used by transportation and emergency services.
As a secondary effect, auroras may be visible farther south than usual, with a low but possible chance of viewing from northern or western Virginia if geomagnetic activity strengthens.
NOAA forecasters say geomagnetic activity could persist at lower levels into Tuesday.
