(FOX 5/KUSI) -- A powerful solar storm is on the way, and it could disrupt communications, GPS systems and even produce rare auroras across parts of the United States early next week, according to weather experts.
The National Oceanic and Atmospheric Administration (NOAA) has issued a G4 (Severe) Geomagnetic Storm Watch for Monday, June 2, after a coronal mass ejection (CME) -- an enormous burst of solar plasma -- erupted from the Sun on Friday, May 30.
The CME is expected to reach Earth by Sunday evening (June 1) and could spark strong geomagnetic activity almost immediately. Initial storm levels may reach G3 (Strong), with conditions potentially intensifying to G4 by Monday.
Although the forecast indicates strong potential for disruption, officials note that the exact timing and intensity of the storm are still uncertain. Much of the impact will depend on the CME's magnetic orientation -- data that will only be known once it reaches solar wind observatories located about 1 million miles from Earth.
"Upon arrival at those spacecraft, we will know the magnetic strength and orientation that are very important to what levels and duration of geomagnetic storm conditions are expected to occur," NOAA officials noted in the weather warning.
While most aurora activity is typically seen closer to the poles, strong geomagnetic storms can push auroras farther south. Depending on how intense the storm becomes, parts of the northern U.S. may be treated to rare views of the Northern Lights.
Technology and infrastructure
A G4-level storm could lead to GPS errors, radio signal disruptions, and even voltage irregularities in power grids, though these impacts are less likely at lower latitudes.
Air travel
High-frequency radio communications, used in some trans-oceanic flights, and navigation systems may be affected. Airlines and space agencies are monitoring the situation closely.
The storm is expected to taper off by Tuesday, June 3, with lingering G1-G2 (Minor to Moderate) conditions possible.
For the latest updates, NOAA recommends visiting its Space Weather Prediction Center.