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06/23/2015 | Geomagnetic Storming Reaches Severe Level
Geomagnetic storming reached the G4 — severe — level at 0513 UTC on June 23.
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10/25/2013 | Solar Activity is “High and Intensifying,” NOAA Says
NOAA reports radio blackouts have occurred over the past 24 hours.
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03/06/2012 | Active Sunspot Region 1429 Produces Solar Flares, Coronal Mass Ejections
An X-1.1 class solar flare erupted from the Sun on Sunday, March 4 at 11:13 PM EST (0413 UTC March 5), sending an explosion of plasma and charged particles -- a coronal mass ejection (CME) -- hurtling through space. Forecasters at NOAA’s Space Weather Pre
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06/30/2011 | Space Weather Prediction Center to Continue Broadcasts on WWV and WWVH
In April 2011, the Space Weather Prediction Center (SWPC) informed the public that as of September 6, 2011, it would no longer broadcast its geophysical alert message on WWV and WWVH. The ARRL has now learned that the SWPC has changed its mind and will ke
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Feature
12/08/2009 | Amateur Radio Quiz: From One End to the OtherAt the bottom of the solar cycle during the month of the winter solstice, there are two contests that span the limits of our MF/HF spectrum. The ARRL 160 Meter Contest ran last weekend and conditions were expected to be excellent. The other is the AR
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![Scientists predict that Solar Cycle 24 will peak in May 2013 with 90 sunspots per day on average. [Graph courtesy of Space Weather Prediction Center]](/img/122x89/News/nms_889.gif)
05/11/2009 | Scientists Predict Solar Cycle 24 to Peak in 2013
At the annual Space Weather Workshop held in Boulder, Colorado last month, an international panel of experts led by NOAA's Space Weather Prediction Center (SWPC) predicted that Solar Cycle 24 will peak in May 2013 with 90 sunspots per day on average. If t
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