Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm

Negative polarity CH HSS sparks G2 – Moderate geomagnetic storm

Earth is under the influence of a negative polarity coronal hole high speed stream (CH HSS) on March 1, 2021, sparking G1 – Minor and G2 – Moderate geomagnetic storming. Solar wind speed started increasing late February 28, from 369 km/s at 22:00 UTC to 521 km/s at…

Slow-moving transient sparks vivid auroras around the Arctic circle

Slow-moving transient sparks vivid auroras around the Arctic circle

Solar wind parameters reflected the arrival of a slow-moving transient at approximately 08:23 UTC on January 11, 2021. At this time, density, temperature, and wind speed increased, sparking vivid auroras around the Arctic circle. The cause of the shock wave might…

G1 – Minor geomagnetic storm watch in effect for December 23 and 24

G1 – Minor geomagnetic storm watch in effect for December 23 and 24

A series of positive polarity, polar connected, coronal hole high speed streams (CH HSS) are expected to affect our planet in the days ahead, resulting in G1 – Minor geomagnetic storming. The area of impact is primarily poleward of 60 degrees Geomagnetic Latitude….

CH HSS sparks G1 – Minor geomagnetic storm, G2 – Moderate warning

CH HSS sparks G1 – Minor geomagnetic storm, G2 – Moderate warning

A recurrent, positive polarity coronal hole high speed stream (CH HSS) is affecting our planet since September 23, sparking active to G1 – Minor geomagnetic storm conditions. A G2 – Moderate geomagnetic storm warning was issued at 08:07 UTC today. In 24 hours to…

Series of coronal holes spark G1 – Minor geomagnetic storming

Series of coronal holes spark G1 – Minor geomagnetic storming

Our planet is under the influence of a series of coronal holes since August 25, 2020, sparking unsettled to G1 – Minor geomagnetic storm conditions. The effect is expected to continue through at least September 2. G1 – Minor geomagnetic storm threshold was first…

G1 – Minor geomagnetic storm in progress

G1 – Minor geomagnetic storm in progress

A negative polarity, southern crown coronal hole extension has moved into a geoeffective position enhancing the solar wind environment. Unsettled levels are expected on April 21 as high speed stream (HSS) effects persist. By late April 22 (UTC), a positive polarity…

Rare, vivid blue auroras seen over Norway’s Lofoten Islands

Rare, vivid blue auroras seen over Norway’s Lofoten Islands

Rare, vivid blue auroras were seen over the night sky of Norway's Lofoten Islands on Tuesday, February 18, 2020. Photographer Matthew Steinberg captured the majestic view, which he was able to finally witness after an entire day of snow, sleet, and heavy winds….