Solar Storm Alert: Earth Braces for Potential Disruptions This Weekend

A powerful solar storm is on a direct collision course with Earth. The U.S. National Oceanic and Atmospheric Administration (NOAA) issued a Severe Geomagnetic Storm Watch. This is the first such alert in nearly 20 years.

The event was triggered by several intense solar eruptions. These eruptions hurled multiple coronal mass ejections (CMEs) toward our planet. According to NOAA, these CMEs could merge, creating a significant, long-lasting geomagnetic storm.

Unprecedented Solar Activity Prompts High Alert

NOAA’s Space Weather Prediction Center elevated the watch to a G4 level, or “Severe,” status. This classification is the second-highest on their five-level scale. The last G4 event occurred in 2005.

The source is a massive, complex sunspot cluster. This cluster is much larger than Earth. It has produced multiple solar flares and CMEs since Wednesday. The British Broadcasting Corporation also reported on the potential for significant impacts.

Potential Impacts on Technology and Daily Life

A G4 storm can cause widespread voltage control problems on power grids. Satellite operations may be disrupted, affecting navigation and communication services. High-frequency radio blackouts are also likely.

For the general public, the most visible effect will be auroras. The Northern Lights, or aurora borealis, could be visible far south. People in states like Alabama and northern California might see the dazzling display.

Info at your fingertips

What is a geomagnetic storm?

A geomagnetic storm is a major disturbance of Earth’s magnetosphere. It happens when energy from the solar wind is transferred into the space environment surrounding Earth. This can cause rapid changes in the magnetic field.

Are these solar storms dangerous to people?

No, the radiation from a geomagnetic storm cannot pass through Earth’s atmosphere to harm humans on the ground. The primary risks are to technology in space and critical infrastructure on the surface, like power grids.

How far south could the Northern Lights be seen?

During a severe G4 storm, auroras have been reported as far south as Alabama and Southern California in the past. Visibility depends on local weather and light pollution conditions.

What should I do to prepare for a solar storm?

For most individuals, no direct action is needed. The power industry takes its own protective measures. It is always wise, however, to have general emergency supplies like flashlights and a battery-powered radio.

How long will this solar storm last?

Geomagnetic storms can last for many hours, and sometimes even days. The effects from this particular event are expected to persist through the weekend as multiple CMEs arrive.