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Minor geomagnetic storms are common. According to NASA , nearly 40 CMEs occurred last week, but most did not cause space weather impacts on Earth. This photo shows a vivid northern lights display ...
A "severe" solar storm could make the northern lights visible in the U.S. farther south than usual while also posing the potential to disrupt modern technology, according to the National Oceanic ...
While most of this week’s disturbances are expected to have little to no impact, there is a chance that the expected storm could reach a level of 3 out of 5 on the geomagnetic storm severity scale.
A geomagnetic storm, also known as a magnetic storm, is a temporary disturbance of the Earth's magnetosphere caused by a solar wind shock wave. The disturbance that drives the magnetic storm may be a solar coronal mass ejection (CME) or (much less severely) a corotating interaction region (CIR), a high-speed stream of solar wind originating ...
This is the third geomagnetic storm to reach G4 status during the current 11-year solar cycle, which began in 2019, officials said.
The 2003 Halloween solar storms had a peak Dst index of −383 nT, although a second storm on 20 November 2003 reached −422 nT while not reaching G5-class. [16] [17] The March 1989 geomagnetic storm had a peak Dst index of −589 nT, [18] while the May 1921 geomagnetic storm has been estimated to have had a peak Dst index of −907 ± 132 nT.
The official planetary K p-index is derived by calculating a weighted average of K-indices from a network of 13 geomagnetic observatories at mid-latitude locations.Since these observatories do not report their data in real-time, various operations centers around the globe estimate the index based on data available from their local network of observatories.
Programming note: Tune in to CNN NewsNight: Solar Storm, hosted by Abby Phillip and Bill Weir, tonight from 10 p.m. to 12 a.m. ET. For the latest on the massive solar storm, head over to CNN’s ...