The solar wind remained fast enough to trigger additional storms
On Sunday night, the sun reminded Earth of its ancient authority — sending a severe geomagnetic storm that lit northern skies with rare auroras while quietly pressing against the invisible systems modern civilization depends upon. Forecasters at NOAA's Space Weather Prediction Center in Boulder, Colorado monitored the storm's aftermath through Monday, aware that the solar wind remained strong enough to stir further disruption. The event arrives as the sun approaches the peak of its 11-year cycle, a season of heightened volatility that will likely bring more such moments through 2025 — each one a negotiation between human infrastructure and the star that sustains us.
- A severe geomagnetic storm struck Earth Sunday night, strong enough to threaten aircraft radio links, satellite tracking, and power grid stability across the northern United States.
- The same solar fury that endangered infrastructure offered a rare gift: auroras potentially visible as far south as northern Illinois and central Iowa, drawing people outside to witness something they may never see again from their own backyards.
- Aviation and satellite operators scrambled to lean on backup systems, while power utilities watched transmission lines for dangerous induced electrical surges that could damage equipment.
- NOAA moved to reassure the public — protections were in place, the disruption was manageable, and the storm, though severe, was following a predictable and containable path.
- The deeper tension is not this single storm but the season it signals: with the sun near solar maximum, events like this will strike multiple times a year through 2025, compressing years of quiet into months of vigilance.
A severe geomagnetic storm swept across Earth on Sunday night, and by Monday morning, forecasters at NOAA's Space Weather Prediction Center in Boulder, Colorado were still watching to see whether the solar wind — still running fast — might trigger additional storm conditions in the hours ahead.
The storm carried two faces. For those in northern Illinois and central Iowa, it offered something rare: a chance to see the aurora borealis from places where the northern lights almost never appear. But the same event threatened the invisible infrastructure of modern life. High-frequency radio communications used by pilots to reach distant air traffic control towers could be interrupted, though forecaster Jonathan Lash noted that most commercial airlines carry satellite communication as a backup. Satellite tracking grew harder as the distorted magnetic field made locating spacecraft more difficult, and power utilities had to watch for induced electrical surges moving through transmission lines.
NOAA was quick to reassure the public — the storm was severe but not unprecedented, and the systems in place were built to handle it. What gave the moment its larger weight was context: the sun is approaching solar maximum, the peak of its 11-year magnetic cycle, when activity intensifies and geomagnetic storms can strike Earth several times a year. The quieter years of solar minimum, when such storms might be separated by years, are behind us. This stretch of heightened solar volatility is expected to persist through 2025.
Just three months earlier, in December, the largest solar flare in years had disrupted radio communications globally — a preview of what an active sun can do. This storm seemed more contained, disruptive but not catastrophic. The question lingering into Monday was whether the elevated solar wind would birth new storms, or whether the worst had already passed.
A severe geomagnetic storm swept across Earth on Sunday night, and by Monday morning, forecasters were still watching to see what would happen next. The National Oceanic and Atmospheric Administration's Space Weather Prediction Center in Boulder, Colorado issued an updated alert acknowledging that while the initial violence was subsiding, the solar wind remained fast enough to trigger additional storm conditions in the hours ahead.
The immediate consequence was both spectacular and practical. Across the northern United States, people in northern Illinois and central Iowa—places where the aurora borealis rarely appears—might see the dancing lights in the sky. It was a rare gift from the sun's fury, the kind of thing that draws people outside at night to look up. But the same storm that painted the sky also threatened to scramble the invisible infrastructure that keeps modern life running.
Aircraft posed the first concern. High-frequency radio transmissions, the kind pilots use to communicate with distant air traffic control towers, could be interrupted or degraded. Jonathan Lash, a forecaster at the prediction center, noted that most commercial airlines have satellite communication as a backup, so the disruption would not strand planes or leave them unable to talk to the ground. Still, it was a reminder of how dependent aviation is on the electromagnetic stability of the space around Earth.
Satellite operators faced their own challenge. Tracking spacecraft becomes harder when geomagnetic storms distort the magnetic field that helps locate them. Power utilities, meanwhile, had to watch for induced currents flowing through their transmission lines—unwanted electrical surges that could damage equipment or degrade service. Lash said the grid operators had protections in place and the situation was manageable, but it required attention and vigilance.
NOAA moved quickly to reassure the public that there was no cause for alarm. The storm was severe, yes, but it was not unprecedented, and the systems in place were designed to handle it. What made this moment notable was the context: the sun was near the peak of its 11-year magnetic cycle, a period called solar maximum when the sun's north and south poles flip and activity intensifies. During these years, geomagnetic storms like this one strike Earth several times annually. During the quieter years of the solar minimum, years might pass between storms. The one that arrived Sunday was a reminder that we were entering a stretch of heightened solar volatility that would likely persist through 2025.
Just three months earlier, in December, the largest solar flare in years had disrupted radio communications across the globe. That event had shown how quickly and broadly the sun's tantrums could ripple through human systems. This storm, though severe, seemed to be following a more predictable path—disruptive but contained, visible but not catastrophic. The question now was whether the elevated solar wind would indeed spawn new storms in the coming hours, or whether the worst had already passed.
Citas Notables
The solar wind speed is still elevated and could result in further geomagnetic storm conditions— National Oceanic and Atmospheric Administration's Space Weather Prediction Center, updated alert issued Monday
Most commercial aircraft can use satellite transmission as backup— Jonathan Lash, forecaster at NOAA's Space Weather Prediction Center
La Conversación del Hearth Otra perspectiva de la historia
Why does a solar storm hit Earth on Sunday night and not, say, Tuesday? Is the sun aiming at us?
The sun isn't aiming. It's more like the sun is constantly throwing material outward in all directions. When a solar flare erupts or a coronal mass ejection happens, it sends a wave of charged particles and magnetic field racing through space at hundreds of miles per second. Earth just happens to be in the path sometimes. Sunday night, we were in the path.
And the northern lights—is that the storm itself, or is it something the storm does to our atmosphere?
The storm is the cause. When those charged particles hit Earth's magnetic field, they get funneled toward the poles. When they collide with oxygen and nitrogen in the upper atmosphere, those gases light up. That's the aurora. Normally it only happens far north, in places like Alaska or Scandinavia. But a severe storm pushes the light show much farther south.
You said aircraft have satellite backup. But what about the satellites themselves? Aren't they in space, where the storm is happening?
They are, which is exactly the problem. The storm can damage satellite electronics or make them harder to track and control. But most modern satellites are hardened against this kind of radiation. The real issue is that operators lose precision in knowing where the satellites are, which matters for everything from GPS to weather forecasting.
So we're entering a period where this will happen more often. How long does that last?
The solar maximum lasts a few years. We're near the peak now, so we should expect several storms per year through 2025 at least. Then the sun will gradually quiet down again. It's a natural rhythm, but it means we're in a window where disruptions are more likely.
Is there anything we can do about it, or is it just something we have to live with?
We can't stop the sun. What we can do is prepare—harden our infrastructure, have backups in place, monitor space weather closely. That's what NOAA does. The fact that this storm caused disruptions but not disasters is partly because people are watching and systems are designed to handle it.