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02/21/2014 | The K7RA Solar Update
Geomagnetic activity has been high, and it likely to continue to be above normal
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12/17/2013 | Solar Scientists Say Cycle 24 is the Weakest in More than a Century
Scientists say Cycle 24 is the weakest in more than 100 years.
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10/26/2013 | NOAA Forecasts 70 Percent Chance of M-Class Solar Flares
High solar activity continues, with the possibility of some radio blackouts.
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04/19/2013 | The K7RA Solar Update
While solar activity weakened this past week, geomagnetic conditions were stable. The geomagnetic storm predicted for last weekend did not happen, and both the planetary and mid-latitude A index only rose to 10 on April 14 in response to a glancing blow f
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11/26/2012 | The K7RA Solar Update
In November 16 edition of the Solar Update, we reported that the average daily sunspot number on November 8-14 was 104.9. In the next seven day reporting period -- November 15-21 -- the average was 126.9, making for a nice increase; with solar flux, the a
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04/01/2012 | ARRL in Action: What Have We Been Up to Lately?
This feature -- including convenient Web links to useful information -- is a concise monthly update of some of the things ARRL is doing on behalf of its members. This installment covers the month of March.
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03/09/2012 | The K7RA Solar Update
This has been quite a week for dramatic solar activity. The average daily sunspot number was up nearly 26 points to 69.4, while the average daily solar flux rose nearly 17 points to 121.9 for the period March 1-7. Sunspot numbers for March 1-7 were 24, 24
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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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