High-speed solar wind from a recurrent coronal hole has sparked another round of geomagnetic storming on Earth. The solar wind environment is expected to remain elevated but steady through the rest of the UTC day before becoming further enhanced on September 28 and…
During the past 24 hours, solar wind parameters transitioned from near background conditions to an enhanced state, causing G1 – Minor geomagnetic storming on Earth. This was most likely caused by the onset of co-rotating interaction region (CIR) ahead of a negative…
Earth is under continued influence of a positive polarity coronal hole high speed stream (CH HSS), which is now causing geomagnetic storms at high latitudes. K-index of 5 (G1 – Minor geomagnetic storm) threshold was reached at 08:59 UTC on September 1, 2016. …
A geomagnetic storm reaching G1 – Minor levels is currently in progress following the early arrival of July 17th Coronal Mass Ejection (CME). The interplanetary shockwave produced by the long duration C1 flare on July 17, initially expected to arrive early on July…
Solar wind parameters reflected a brief enhancement associated with the arrival of a co-rotating interaction region (CIR) and subsequent negative polarity coronal hole high speed stream (CH HSS) late June 22, 2016. A gradual increase in solar wind speeds began after…
A recurrent, negative polarity coronal hole high speed stream (CH HSS) has hit Earth's magnetic field causing geomagnetic storms on June 5, 2016. A G2 (Moderate) geomagnetic storm watch is currently in effect. This same CH HSS has affected Earth on May 8 with…
Earth is under the influence of negative polarity coronal hole high speed stream (CH HSS) since late April 12, 2016. This is causing isolated periods of G1 – Minor geomagnetic storming. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was first…
A geomagnetic storm reaching G1 – Minor levels is currently in progress as Earth enters a stream of positive polarity high-speed solar wind. Geomagnetic K-index of 5 (G1 – Minor geomagnetic storm) threshold was reached at 20:40 UTC on April 7: Space Weather Message…
Our planet is passing through a stream of fast-moving, negative polarity solar wind. Geomagnetic storming reached G1 – Minor levels at 17:24 UTC. A G2 – Moderate warning is in effect for the rest of the UTC day. This is a recurrent CH HSS, responsible for G3 -…
A new round of geomagnetic storming is in progress on March 15, 2016. Solar wind parameters are enhanced since late March 14 due to the onset of a negative polarity coronal hole high speed stream (CH HSS) and are expected to remain like that through March 16….
