A G1 (Minor) geomagnetic storm watch has been issued for 12 January (UTC day) due to a recurrent, negative polarity, coronal hole high speed stream. Whenever we have high speed solar wind stream features that have been observed consistently for several rotations, it is more likely that isolated minor geomagnetic activity will occur. The image is a composite of several different wavelengths from NASA’s Solar Dynamics Observatory. The outline indicates the coronal hole we are tracking.
Episode 182: World’s Best Hobby – Dave Bell W6AQ on HamRadioNow “Until the Internet age, Dave Bell W6AQ was the most prolific producer of television programs about Amateur Radio, most of them aimed at a general audience on... Read more