Rare ‘Severe’ Geomagnetic Storm is Hitting Earth Right Now


SEVERE GEOMAGNETIC STORM: Arriving earlier than expected, a CME hit Earth’s magnetic field on Sept. 7th at ~2300 UT. This is, essentially, debris from Wednesday’s decade-class X9 solar flare. A rare severe G4-class geomagnetic storm is in progress as our planet’s magnetic field reverberates from the impact. Auroras have been spotted as far south as Arkansas in the United States! http://www.spaceweather.com/ Rare Severe Geomagnetic Storm A coronal mass ejection (CME) propelled into space by an X9.3 solar flare on Thursday reached our planet a little earlier than expected and helped to generate a Severe (G4) level geomagnetic storm. The solar wind climbed to above 700 km/s and the Bz component of the interplanetary magnetic field (IMF) pointed sharply south (-32nT) following the shock passage. Visual aurora is being reported across many locations at middle to high latitudes. http://www.solarham.net/

UPDATE: S1-S2 WARNING EXTENDED TO 8 SEPTEMBER/2359 UTC The S1-S2 (Minor-Moderate) solar radiation storm warning for the 10 MeV protons was extended and is now in effect until 8 September at 2359 UTC (8/1959 ET). http://www.swpc.noaa.gov/

UPDATE: CONTINUED G4 (SEVERE) GEOMAGNETIC STORMING OBSERVED G4 (Severe) geomagnetic storm levels were observed at 2350 UTC (1950 Eastern) on 07 September and again at 0151 UTC (2151 Eastern) on 08 September due to effects from a coronal mass ejection. A G3 (Strong) or greater warning continues to be in effects until 0600 UTC (02:00 Eastern) on 08 September. G4 (Severe) Geomagnetic Storm Impacts Power systems: Possible widespread voltage control problems and some protective systems will mistakenly trip out key assets from the grid. Spacecraft operations: May experience surface charging and tracking problems, corrections may be needed for orientation problems. Other systems: Induced pipeline currents affect preventive measures, HF radio propagation sporadic, satellite navigation degraded for hours, low-frequency radio navigation disrupted, and aurora has been seen as low as Alabama and northern California (typically 45° geomagnetic lat.). S2 (Moderate) Solar Radiation Storm Impacts Biological: Passengers and crew in high-flying aircraft at high latitudes may be exposed to elevated radiation risk. Satellite operations: Infrequent single-event upsets possible. Other systems: Small effects on HF propagation through the polar regions and navigation at polar cap locations possibly affected. http://www.swpc.noaa.gov/

Clips, images credit: NOAA/SWPC, NASA/SDO, ESA/HUBBLE & ESO Music credit: YouTube Audio Library Epic Unease by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/…)

Source: http://incompetech.com/music/royalty-… Artist: http://incompetech.com/

Medusa by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/…) Source: http://incompetech.com/music/royalty-… Artist: http://incompetech.com/

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