An unusually long-lived solar flare occurred Monday and an associated geomagnetic storm could produce the northern lights.
auroras could appear down to the mid-latitudes. For a moderate geomagnetic storm, the dancing lights could be seen in the Northeast, northern and central Great Plains and northern Rockies. If the geomagnetic storm ends up on the stronger side of predictions, the curtains of light could appear further south.
The recent activity began with a solar flare starting Monday evening. A solar flare is caused when the magnetic field lines near sunspots tangle, cross and reorganize, causing a sudden explosion of energy, . The flare can be intense and release a lot of radiation into space, which can disrupt radio communications on Earth. Monday evening’s flare lasted eight hours.“What really made it interesting is how long that went on,” said Bill Murtagh, program coordinator for the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center. “A big prolonged event like that is indicative of the total energy of the eruption.
The M5.7 solar flare from AR3363 was highly eruptive and caused the first moderate S2 solar radiation storm of SC25. The resulting CME is impressive but we think the probability of it arriving at Earth is low due to the partial halo outline and location of the eruption.
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