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Solar storm hits Earth, produces colorful light shows across N. Hemisphere

An unusually strong solar storm hitting Earth produced stunning displays of color in the skies across the Northern Hemisphere early Saturday, with no immediate reports of disruptions to power and communications.

Quick Read

  • Solar Storm Impact: An unusually strong solar storm hit Earth, creating vibrant light displays across the Northern Hemisphere without any immediate disruptions to power or communications.
  • Severe Geomagnetic Storm Warning: NOAA issued a severe geomagnetic storm warning as the solar outburst reached Earth on Friday afternoon, earlier than expected.
  • Visibility Across Locations: The Northern Lights were visible as far south as London and southern England, with sightings reported across Europe, including Prague and Barcelona.
  • Precautions and Alerts: NOAA advised precautions for operators of power plants and spacecraft, as well as the Federal Emergency Management Agency.
  • Visibility in the U.S.: The auroras could potentially be seen as far south as Alabama and Northern California, appearing as splashes of greenish hues rather than dramatic color curtains.
  • Advice for Viewing: NOAA experts suggested using phone cameras to capture the auroras, as they might reveal more than what is visible to the naked eye.
  • Potential Risks: The storm poses risks mainly to high-voltage transmission lines and satellites, which could affect navigation and communication services.
  • Continued Monitoring: The sun has been producing significant solar flares associated with a large sunspot, and several spacecraft are monitoring the ongoing solar activity.
  • NASA Precautions: Increased radiation levels from the storm pose a concern for the International Space Station crew and some of NASA’s science satellites, with possible adjustments and instrument shutdowns to prevent damage.

The Associated Press has the story:

Solar storm hits Earth, produces colorful light shows across N. Hemisphere

Newslooks- CAPE CANAVERAL, Fla. (AP) —

An unusually strong solar storm hitting Earth produced stunning displays of color in the skies across the Northern Hemisphere early Saturday, with no immediate reports of disruptions to power and communications.

In this long exposure photograph, a car drives past and illuminates poplars as the northern lights glow in the night sky above the village of Daillens, Switzerland, early Saturday, May 11, 2024. (Laurent Gillieron/Keystone via AP)

The U.S. National Oceanic and Atmospheric Administration issued a rare severe geomagnetic storm warning when a solar outburst reached Earth on Friday afternoon, hours sooner than anticipated. The effects of the Northern Lights, which were prominently on display in Britain, were due to last through the weekend and possibly into next week.

Northern lights appear in the night sky above the Brocken early Saturday, May 11, 2024, in Schierke, northern Germany. (Matthias Bein/dpa via AP)

Many in the U.K. shared phone snaps of the lights on social media early Saturday, with the phenomenon seen as far south as London and southern England.

The aurora borealis, also known as the northern lights, glow on the horizon at St. Mary’s Lighthouse in Whitley Bay on the North East coast, England, Friday, May 10, 2024. (Owen Humphreys/PA via AP)

There were sightings “from top to tail across the country,” said Chris Snell, a meteorologist at the Met Office, Britain’s weather agency. He added that the office received photos and information from other European locations including Prague and Barcelona.

Northern lights appear in the night sky above the Brocken early Saturday, May 11, 2024, in Schierke, northern Germany. (Matthias Bein/dpa via AP)

NOAA alerted operators of power plants and spacecraft in orbit, as well as the Federal Emergency Management Agency, to take precautions.

“For most people here on planet Earth, they won’t have to do anything,” said Rob Steenburgh, a scientist with NOAA’s Space Weather Prediction Center.

Northern lights appear over the Dreisamtal valley in the Black Forest near Freiburg, Germany, Friday evening, May 10, 2024. (Valentin Gensch/dpa via AP)

The storm could produce northern lights as far south in the U.S. as Alabama and Northern California, NOAA said. But it was hard to predict and experts stressed it would not be the dramatic curtains of color normally associated with the northern lights, but more like splashes of greenish hues.

This image provided by NASA shows a solar flare, as seen in the bright flash in the lower right, captured by NASA’s Solar Dynamics Observatory on May 9, 2024. A severe geomagnetic storm watch has been issued for Earth starting Friday and lasting all weekend _ the first in nearly 20 years. (NASA/SDO via AP)

“That’s really the gift from space weather: the aurora,” Steenburgh said. He and his colleagues said the best aurora views may come from phone cameras, which are better at capturing light than the naked eye.

Northern lights appear in the night sky over the Pferdskopf near Treisberg in the Hochtaunus district of Hesse, Germany, early Saturday, May 11, 2024. (Lando Hass/dpa via AP)

Snap a picture of the sky and “there might be actually a nice little treat there for you,” said Mike Bettwy, operations chief for the prediction center.

The most intense solar storm in recorded history, in 1859, prompted auroras in central America and possibly even Hawaii. “We are not anticipating that” but it could come close, NOAA space weather forecaster Shawn Dahl said.

Northern lights appear in the night sky over the Pferdskopf near Treisberg in the Hochtaunus district of Hesse, Germany, early Saturday, May 11, 2024. (Lando Hass/dpa via AP)

This storm poses a risk for high-voltage transmission lines for power grids, not the electrical lines ordinarily found in people’s homes, Dahl told reporters. Satellites also could be affected, which in turn could disrupt navigation and communication services here on Earth.

An extreme geomagnetic storm in 2003, for example, took out power in Sweden and damaged power transformers in South Africa.

Northern lights glow in the night sky above the village of Daillens, Switzerland, early Saturday, May 11, 2024. (Laurent Gillieron/Keystone via AP)

Even when the storm is over, signals between GPS satellites and ground receivers could be scrambled or lost, according to NOAA. But there are so many navigation satellites that any outages should not last long, Steenburgh noted.

The sun has produced strong solar flares since Wednesday, resulting in at least seven outbursts of plasma. Each eruption, known as a coronal mass ejection, can contain billions of tons of plasma and magnetic field from the sun’s outer atmosphere, or corona.

Northern lights glow in the sky near Kroschel, Minn., late Friday, May 10, 2024. (Owen Caputo Sullivan via AP)

The flares seem to be associated with a sunspot that’s 16 times the diameter of Earth, NOAA said. It is all part of the solar activity ramping up as the sun approaches the peak of its 11-year cycle.

NASA said the storm posed no serious threat to the seven astronauts aboard the International Space Station. The biggest concern is the increased radiation levels, and the crew could move to a better shielded part of the station if necessary, according to Steenburgh.

The northern lights glow in the sky over St. Croix State Forest near Markville, Minn., late Friday, May 10, 2024. (AP Photo/Mark Vancleave)

Increased radiation also could threaten some of NASA’s science satellites. Extremely sensitive instruments will be turned off, if necessary, to avoid damage, said Antti Pulkkinen, director of the space agency’s heliophysics science division.

Several sun-focused spacecraft are monitoring all the action.

“This is exactly the kinds of things we want to observe,” Pulkkinen said.

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