|
Posted by John, W1TAG on June 22, 2015 at 22:34:58.
|
We had a double solar whammy this afternoon. An expected CME arrived around 1800Z, and pushed the solar wind speed over 700 km/sec, leading to a >Kp=5 event (now Kp=8 as I write this). As this was starting up, sunspot region AR2371 produced an M6.5 flare, which led to an HF radio blackout. Unaware of this, I started monitoring the Hifer "watering hole" at 1858Z, and saw no signals. I let the captures run while I checked the various web sites to see what was going on. Signals gradually began to show up in the 1900Z hour. But there was an interesting "bell-ringing" sort of event that started at 2020Z. See this clip of USC:
http://www.w1tag.com/files/USC.jpg The next capture shows the ringing effect on the rest of the visible signals.
http://www.w1tag.com/files/All.jpg
The copy of WM on the bottom of the screen is almost unrecognizable. The last of the unusual effects ended by 2050Z. John, W1TAG
|
Follow Ups:
|