Tag

Geomagnetic Storm

All articles tagged with #geomagnetic storm

space3 days ago•121 min saved

NOAA Warns of G2 Geomagnetic Storm as CME Arrives Oct 9

NOAA has issued a G2 geomagnetic storm watch for October 9, following a coronal mass ejection (CME) launched by the Sun on October 6. The CME, traveling at approximately 560 km/s, is expected to reach Earth in the early hours of October 9, potentially triggering visible auroras as far south as Idaho and New York. This event follows an M1.4-class solar flare from sunspot region AR4549, which is currently positioned near the center of the Earth-facing side of the Sun. While exact arrival timing remains uncertain, forecasters anticipate moderate geomagnetic activity that could enhance northern lights visibility across the northern United States.

via Space|

#aurora-borealis #coronal-mass-ejection #geomagnetic-storm

science-and-weather16 days ago

Michigan Aurora Forecast: Geomagnetic Storms Clash with Rain and Clouds

NOAA predicts a minor geomagnetic storm could allow northern lights to appear in Michigan's Upper Peninsula and northern regions on September 16, but local weather forecasts indicate rain and overcast skies may block visibility. A subsequent solar wind event from a coronal hole is expected to enhance aurora activity later in the week, though recent data suggests calm conditions for the start of the new workweek.

via Detroit Free Press|

#geomagnetic-storm #michigan-weather #noaa-forecast

science1 month ago•21 min saved

Astral Tempest Scrambles GPS Across the U.S., Revealing a New Positioning Vulnerability

During a severe geomagnetic storm on November 11, 2025, GPS positions across much of the continental United States drifted by as much as 10 meters (33 feet) for hours, as an unusually far south auroral oval and a broad band of ionospheric disturbance triggered widespread scintillation—exposing a previously underappreciated vulnerability in systems that rely on ultra-precise positioning and raising questions about prediction.

via ZME Science|

#auroral-oval #geomagnetic-storm #gps

science1 month ago•7 min saved

Unprecedented US GPS Glitch Traced to November 2025 Solar Storm

A November 2025 solar superstorm triggered coast-to-coast ionospheric disturbances across the continental US, producing amplitude scintillation that degraded GPS accuracy by more than 10 meters (about 33 feet) in some areas and threatening precision agriculture and autonomous systems; the mid-latitude disturbances spanned from West to East Coast in a scale never before seen, and researchers say better space-weather prediction and modeling are needed to mitigate future disruptions. The findings appear in Geophysical Research Letters, based on GNSS and aurora observations led by Endawoke Yizengaw.

via ScienceAlert|

#amplitude-scintillation #geomagnetic-storm #gps

science1 month ago•2 min saved

Michigan could witness vivid aurora Friday as space weather flares up

NOAA's Space Weather Prediction Center issued a G1 geomagnetic storm watch for Friday night in Michigan, with the Kp index possibly rising to about 5.7, potentially producing strong aurora borealis across the state (especially the Upper Peninsula). For best viewing, seek dark, clear skies away from city lights; there is a chance of clouds or rain in parts of northern Michigan, and the trend could intensify to a G2 storm into Saturday.

via Detroit Free Press|

#aurora-borealis #geomagnetic-storm #kp-index

local1 month ago•30 min saved

Auroras light up the night as a partial lunar eclipse dazzles tonight

Forecasters expect to glimpse the Northern Lights tonight (and again Friday) as a partial lunar eclipse unfolds, with geomagnetic activity likely to heighten the aurora display and NOAA monitoring the event.

via WWMT|

#aurora-borealis #geomagnetic-storm #local

science1 month ago•2 min saved

Michigan set for auroras and a partial lunar eclipse amid solar storm

A solar flare could spark visible northern lights in Michigan on Aug. 27–28 as NOAA issues G1 and then G2 geomagnetic storm watches due to CMEs from Aug. 25. The partial lunar eclipse adds viewing opportunities, with the eclipse visible statewide (9:23 p.m. Aug. 27–3:01 a.m. Aug. 28) and a peak around 12:12 a.m. in many areas; a Kp index up to 5 signals potentially strong aurora, weather permitting.

via Detroit Free Press|

#aurora #geomagnetic-storm #kp-index

science1 month ago•50 min saved

Solar Storm Could Paint Northern Lights Across US Skies This Week

A powerful M6.9 solar flare and its coronal mass ejection could deliver a glancing blow to Earth later this week, raising the odds of visible Northern Lights across Alaska, Canada, and parts of the northern United States on clear, dark nights as NOAA forecasts a potential G1–G2 geomagnetic storm; viewing will depend on how the CME interacts with Earth's magnetic field and local light pollution.

via Yahoo|

#aurora-borealis #cme #geomagnetic-storm

science1 month ago•11 min saved

Sun-sparked currents and a dawn-dark sky: the 1859 Carrington Event

The Carrington Event of 1859 unleashed a solar storm that drove geomagnetic currents along long telegraph lines, causing outages and fires while auroras lit skies as far apart as Cuba and Hawaii, demonstrating the vulnerability of modern infrastructure to space weather and spurring ongoing research into forecasting and mitigation for the electric grid.

via Space Daily|

#aurora #carrington-event #geomagnetic-storm

space1 month ago•159 min saved

Auroras During the Aug. 12 Eclipse: Possible, but Extremely Rare

Experts say it’s physically possible to see the northern lights during the Aug. 12, 2026 total solar eclipse, but the odds are very low. A strong geomagnetic storm (G4–G5) would need to align with the eclipse so daytime auroral activity appears in the sky near totality, and even then the sun’s corona during totality would typically outshine auroras near the Sun. Greenland or Iceland offer the best near-eclipse viewing, but overall it remains a rare coincidence; a pre-eclipse CME or the Perseid meteor shower could raise the odds, but expect it to be a rare sight if space weather cooperates at all.

via Space|

#auroras #eclipse #geomagnetic-storm

space-weather2 months ago•30 min saved

Earthward CME from M1.9 flare prompts August 2 geomagnetic watch

A long-duration M1.9 solar flare from Active Region 4492 on July 30, with an associated filament eruption, produced an Earth-directed partial-halo CME and a minor solar radiation storm. WSA-Enlil model runs place the CME’s arrival at Earth around August 2, with NOAA’s Space Weather Prediction Center forecasting G1–G2 (Minor–Moderate) geomagnetic storm conditions. Solar wind parameters have been mostly nominal, but disturbances from July 26–27 CMEs and the July 30 CME could arrive; increased drag, potential voltage alarms on power systems, spacecraft orientation corrections, and radio fade are possible, with auroras potentially visible as far south as New York and Idaho under favorable conditions.

via The Watchers - Watching the world evolve and transform|

#aurora #coronal-mass-ejection #geomagnetic-storm

science2 months ago•7 min saved

New Study Suggests Extreme Solar Storms Could Hit Harder Than Previously Thought

A WIRED study argues that Earth's magnetic response to solar wind may not have a true upper limit. By accounting for timing delays and variability in solar wind measurements, the apparent saturation disappears and the response appears linear, implying Carrington-scale storms could be about twice as damaging as older models predicted.

via WIRED|

#geomagnetic-storm #measurement-bias #regression-toward-the-mean

science3 months ago•15 min saved

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

space3 months ago•15 min saved

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

science3 months ago•14 min saved

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