A G2 - Moderate geomagnetic storm threshold was reached at 08:25 UTC on April 20, 2018 and G2 warning is in now in effect until 12:00 UTC. An interplanetary shock wave hit Earth's magnetic field around 23:50 UTC on April 19, Dr. Tony Phillips of SpaceWeather.com...
April 20, 2018
A persistent negative polarity coronal hole high speed stream (CH HSS) sparked G2 - Moderate geomagnetic storm on March 18, 2018. A gradual return to background levels is expected on March 19 as CH HSS influence subsides. However, enhanced solar wind parameters are...
March 19, 2018
Geomagnetic storms caused by negative polarity, south polar coronal hole high speed stream (CH HSS) reached G1 - Minor levels early Tuesday, February 27, 2018. Solar wind parameters are expected to further increase today and a G2 - Moderate geomagnetic storm warning...
February 27, 2018
An isolated interval of G1 - Minor geomagnetic storm conditions was observed early February 19, 2018, due to the influence of negative polarity coronal hole high speed stream (CH HSS). Solar activity over the past 24 hours was at very low levels. Earth-facing side...
February 19, 2018
A long-duration C1.5 solar flare erupted from geoeffective Active Region 2699 on February 12, 2018. The event started at 00:15, peaked at 01:35 and ended at 03:21 UTC. A G1 - Minor geomagnetic storm watch is in effect for February 15. This event produced an...
February 13, 2018
According to the Laboratory for X-ray Solar Astronomy of the PN Lebedev Physical Institute in Russia, the solar activity cycle has, by all indications, practically reached its minimum 1.5 years ahead of expected time. Given that the previous solar maximum in 2012...
December 20, 2017
A 13-degree long plasma filament eruption was observed in SDO/AIA 304 imagery starting at 12:29 UTC on December 15, 2017. A glancing blow is expected late December 19, in combination with a recurrent, positive polarity CH HSS. Meanwhile, solar activity is at very...
December 17, 2017
A high-speed solar wind stream is affecting our planet today, causing geomagnetic storming. G2 - Moderate geomagnetic storm watch is in effect. Solar wind parameters indicated the onset of a Co-Rotating Interaction Region (CIR) in advance of a polar-connected,...
December 05, 2017
A solar filament was observed lifting off the Sun's northeastern quadrant beginning at approximately 04:45 UTC on November 25, 2017. An associated weak Coronal Mass Ejection (CME) was observed in SOHO/LASCO C2 and C3 imagery and the analysis shows a potential...
November 26, 2017
Over the past couple winters, big displays of pink and white auroras have coincided with spotless suns. The sight is often big enough to make observers wonder if there is a connection, SpaceWeather reports. The most recent remarkable outburst of pink auroras was...
November 25, 2017
A Co-Rotating Interaction Region (CIR) ahead of isolated positive polarity Coronal Hole High Speed Stream (CH HSS) is affecting our planet today, causing geomagnetic storming. G1 - Minor geomagnetic storm threshold was reached 05:30 UTC. Over the past 24 hours,...
November 21, 2017
Earth is again under the influence of a recurrent, positive polarity, northern extension Coronal Hole High Speed Stream (CH HSS). G1 - Minor geomagnetic storm level threshold was reached at 11:55 UTC, followed by G2 - Moderate at 19:21 UTC. Over the past 24 hours,...
November 07, 2017
Our planet is again under the influence of a recurring, positive polarity Coronal Hole High Speed Stream (CH HSS), which is causing isolated periods of G1 - Minor geomagnetic storming. Over the past 24 hours, solar wind parameters were indicative of the arrival of a...
October 25, 2017
A moderately strong solar flare measuring M1.1 at its peak erupted at 23:28 UTC on October 20, 2017 from the vicinity of old Region 2682, numbered 2673 two rotations ago. Radio signatures suggested and coronagraph imagery confirmed, a Coronal Mass Ejection (CME) was...
October 21, 2017
A powerful double solar flare eruption took place beyond the Sun's east limb early October 18, 2017. The responsible region is now rotating into Earth view and will be visible in a couple of days. The eruption was associated with a Type II (estimated velocity 1...
October 18, 2017
Our planet is under the influence of coronal hole high speed stream (CH HSS) for the third day in a row. The geomagnetic field was unstable, with isolated periods of G1 - Minor storm levels during the past two days and then increased to G2 - Moderate levels at 14:59...
October 13, 2017
Geomagnetic storming reaching G1 - Minor levels is underway as our planet moves through a stream of high-speed solar wind. At the same time, solar activity is at very low levels with no flare activity and a spotless Sun on its Earth-facing side. Over the past 24...
October 12, 2017