Earth is passing through a stream of high speed solar wind produced by a recurrent, polar connected, positive polarity coronal hole. This is causing isolated periods of G1 class geomagnetic storming. G2 – Moderate geomagnetic storm watch is in effect for October…
A filament in Sun's northeast quadrant erupted between 15:00 and 17:00 UTC on Saturday, October 8, 2016, producing an asymmetric, partial-halo CME. The CME, although faint, was first observed in LASCO C2 imagery beginning 00:48 UTC on October 9. It reached ACE…
Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS) for several days now. Enhanced solar wind parameters are expected to continue through October 1, with G3 – Strong geomagnetic storm levels possible today. G2 – Moderate…
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 co-rotating interaction region (CIR) – the transition zone between slow- and fast-moving streams of solar wind – has hit Earth's magnetic field on June 14, 2016, sparking geomagnetic storms. As of 19:55 UTC, a G2 – Moderate geomagnetic storm is in progress and…
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…
