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ALERT: Geomagnetic K-index of 6 -- Threshold Reached: 2012 Sep 031500 UTC
Space Weather Message Code: ALTK06
Serial Number: 291 Issue Time: 2012 Sep 03 1503 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2012 Sep 03 1500 UTC Synoptic Period: 1200-1500 UTC Active Warning: Yes NOAA Scale: G2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/NOAAscales Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio - HF (high frequency) radio propagation can fade at higher latitudes. Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state. |
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ALERT: Geomagnetic K-index of 6 -- Threshold Reached: 2012 Sep03 1500 UTC
On 03/09/2012 16:07, Sam Wormley wrote:
Space Weather Message Code: ALTK06 Serial Number: 291 Issue Time: 2012 Sep 03 1503 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2012 Sep 03 1500 UTC Synoptic Period: 1200-1500 UTC Active Warning: Yes NOAA Scale: G2 - Moderate NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/NOAAscales Potential Impacts: Area of impact primarily poleward of 55 degrees Geomagnetic Latitude. Induced Currents - Power grid fluctuations can occur. High-latitude power systems may experience voltage alarms. Spacecraft - Satellite orientation irregularities may occur; increased drag on low Earth-orbit satellites is possible. Radio - HF (high frequency) radio propagation can fade at higher latitudes. Aurora - Aurora may be seen as low as New York to Wisconsin to Washington state. Is this a real one or has the warning system gone berserk again? -- Regards, Martin Brown |
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ALERT: Geomagnetic K-index of 6 -- Threshold Reached: 2012 Sep03 1500 UTC
The alert comes 2-3 days after:
Space Weather News for Sept. 1, 2012 http://spaceweather.com MAGNIFICENT ERUPTION: On August 31st, a magnetic filament on the sun erupted in spectacular fashion, producing a long-duration solar flare, a coronal mass ejection (CME) and one of the most beautiful movies of an explosion ever recorded by NASA's Solar Dynamics Observatory. The CME propelled by the blast might deliver a glancing blow to Earth's magnetic field in the days ahead. Check http://spaceweather.com for movies, forecasts and updates. |
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ALERT: Geomagnetic K-index of 6 -- Threshold Reached: 2012 Sep03 1500 UTC
On 9/3/12 10:28 AM, Martin Brown wrote:
Is this a real one or has the warning system gone berserk again? -- Regards, Martin Brown This one is the real thing! See: http://www.swpc.noaa.gov CME IMPACT, GEOMAGNETIC STORM: As expected, a coronal mass ejection hit Earth on Sept. 3rd at approximately 1200 UT (5 am PDT). The impact induced significant ground currents in the soil of northern Scandinavia and sparked bright auroras around the Arctic Circle. A moderate geomagnetic storm is underway. See: http://spaceweather.com Regards, -Sam |
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ALERT: Geomagnetic K-index of 6 -- Threshold Reached: 2012 Sep 031500 UTC
On Sep 3, 5:07*pm, Sam Wormley wrote:
Space Weather Message Code: ALTK06 Serial Number: 291 Issue Time: 2012 Sep 03 1503 UTC ALERT: Geomagnetic K-index of 6 Threshold Reached: 2012 Sep 03 1500 UTC Synoptic Period: 1200-1500 UTC Active Warning: Yes NOAA Scale: G2 - Moderate NOAA Space Weather Scale descriptions can be found atwww.swpc.noaa.gov/NOAAscales Potential Impacts: It is wonderful being an astronomer and being capable of looking at these CME's in an impromptu manner and the potential impacts it has for studying the internal dynamics of the Earth and especially the high probability of latitudinal differential rotation common to all rotating celestial objects with exposed viscous compositions.I believe people find it easier to talk about imaginative forces and celestial objects then work through the intricate and technical details of complex systems such as planetary shape,geological evolution,the magnetic field and all other topics tied to a rotating planet. I do not know what empiricists see when CME's produce effects on a planet's magnetic field but I see the astronomical equivalent of scattering iron filings on a paper covering a magnet.It takes a while to become accustomed to the cross referencing between dynamics, their effects and especially planetary comparisons but again,once a person develops familiarity to the few principles,the topics become enjoyable,productive and everything astronomy should be. Again,it takes an astronomer and you should try it sometime. |
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