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Geomagnetic Storm

All articles tagged with #geomagnetic storm

Tiny Solar Storm, Big Starlink Loss: 40 Satellites Burn Up
science18 days ago

Tiny Solar Storm, Big Starlink Loss: 40 Satellites Burn Up

A February 2022 G1 geomagnetic storm briefly thickened Earth's thermosphere, increasing drag at the 210 km deployment altitude and causing 40 of 49 Starlink satellites from a single launch to reenter and burn up within days. The event prompted SpaceX to adjust deployment and attitude strategies, pushed space-weather forecasting to the forefront of risk planning for LEO assets, and led insurers to reassess satellite risk under variable solar activity.

via Space Daily|
#drag#geomagnetic-storm#low-earth-orbit
The 90-Second Sunstorm That Plunged Quebec Into Darkness—and Redefined Grid Risk
space18 days ago

The 90-Second Sunstorm That Plunged Quebec Into Darkness—and Redefined Grid Risk

On March 13, 1989, a solar coronal mass ejection induced currents that collapsed Quebec's Hydro-Québec grid in 90 seconds, leaving 6 million people without power for hours; the event exposed vulnerabilities of long-distance transmission to space weather and spurred major investments in grid protection and real-time solar forecasting across North America.

via Space Daily|
#coronal-mass-ejection#geomagnetic-storm#grid-resilience
Solar storms turn long metal into giant antennas, threatening grids and the internet
science19 days ago

Solar storms turn long metal into giant antennas, threatening grids and the internet

Geomagnetic storms induce voltages along the Earth’s longest conductors—power lines, pipelines, and undersea fiber cables—creating currents that can saturate transformers, cause outages, and disrupt global communications for weeks. The 1989 Hydro-Québec blackout is a key example, and a Carrington-class event could cripple continents if multiple transformers and shore-end equipment fail. Forewarning is limited (CME travel 1–3 days; ground-based signals give hours of lead time), while grid-hardening and monitoring efforts (including blocking certain DC paths and studying bedrock conductivity) are underway in places like New Zealand and Alaska to reduce risk. The Sun itself isn’t striking people; its magnetic field is coupling with long metal structures to carry the threat into modern life.

via Space Daily|
#geomagnetic-storm#infrastructure#power-grid
Solar storm could turn the night sky into a canvas across parts of the U.S.
space1 month ago

Solar storm could turn the night sky into a canvas across parts of the U.S.

An incoming coronal mass ejection could hit Earth's magnetic field today, possibly triggering geomagnetic storms from G1 to G3 and boosting auroras into mid-latitudes across the northern U.S.; the strongest activity is expected 11 a.m.–2 p.m. EDT, with elevated chances into the evening, and auroras could be visible as far south as northern Michigan, Maine, New York, Idaho, Illinois, and Oregon depending on conditions. NOAA has issued a G3 watch for June 8 and a G2 watch for June 9.

via Space|
#aurora#cme#geomagnetic-storm
Aurora could light Washington skies as strong solar storm arrives
weather1 month ago

Aurora could light Washington skies as strong solar storm arrives

NOAA has issued a G3 strong geomagnetic storm watch for Thursday night, with a chance of reaching G4, which could bring the northern lights to Washington. The display is tied to coronal mass ejections from the sun on June 3; viewing is best outside city lights between about 10 p.m. and 2 a.m., though an 82%-lit waning moon could hinder visibility. The aurora is expected to fade by Friday night.

via MyNorthwest.com|
#aurora-borealis#coronal-mass-ejections#geomagnetic-storm
Earth‑bound cannibal CME from rare anti‑Hale sunspot sparks auroras across 23 states
space1 month ago

Earth‑bound cannibal CME from rare anti‑Hale sunspot sparks auroras across 23 states

A cannibal coronal mass ejection from sunspot 4455—a rare anti‑Hale sunspot—is expected to slam into Earth this afternoon, likely triggering strong geomagnetic storms (G3–G4) and widespread auroras visible as far south as 23 U.S. states, with NOAA projecting mid‑afternoon arrival and skywatchers from the Pacific Northwest to the Northeast potentially seeing the lights.

via Live Science|
#auroras#coronal-mass-ejection#geomagnetic-storm
Aurora Alert: Northern Lights Possible Across 10 U.S. States Tonight
science1 month ago

Aurora Alert: Northern Lights Possible Across 10 U.S. States Tonight

NOAA expects a minor G1 geomagnetic storm from a fast solar wind that could bring the northern lights to parts of the northern U.S. tonight into early Saturday, best seen after dusk in dark, rural areas. Potential viewing spans Alaska and northern states including Washington, Idaho, Montana, North Dakota, South Dakota, Minnesota, Wisconsin, Michigan, and Maine, aided by a new moon that darkens the skies. Auroras occur when solar wind energizes atmospheric gases.

via The Daily Galaxy|
#aurora-borealis#geomagnetic-storm#noaa