Space weather has been a bit like our terrestrial weather this week. We have had sunspots, some C-class solar flares, some coronal mass ejections and a large coronal hole – unsettled, you could say! Luckily, the coronal mass ejections were not Earth-directed, but the Kp index did rise to 5 on the 15 July and […]

Last week was characterised by settled geomagnetic conditions, but a relatively low solar flux index. The Kp index hit 5.33 on the 6 and 7 July but was otherwise around 1 or 2 for the rest of the week. These settled conditions were helpful to HF propagation, although the maximum usable frequency over a 3,000km […]

It looks like the Space Weather Prediction Centre, which supplies the forecasts for NOAA, were overly cautious last week. Despite predicting geomagnetic disturbances, we had quite a calm week. The Kp index rose to 3.33 on a few occasions, but that was it. We ended up with settled geomagnetic conditions and a solar flux index […]

The last week was good from a geomagnetic disturbance point of view. Up until Wednesday, the 25th, the Kp index had not been higher than 3.67, and had mostly been in the ones and twos. This helped HF propagation to a great extent. Sunspots have been present with the solar flux index sitting at 120 […]