An impulsive solar flare measuring C5.6 at its peak time erupted from AR 2736, the source of yesterday's C4.8 and associated asymmetric full-halo CME, at 03:12 UTC on March 21, 2019. The event started at 03:08 and ended at 03:15 UTC. There were no radio...
March 21, 2019
A solar flare measuring C4.8 at its peak erupted from newly-emerged AR 2736 on March 20, 2019. The eruption started at 10:35, peaked at 11:18 and ended at 11:34 UTC. The region was also responsible for several B-class flares over the past 7 hours. The flare was...
March 20, 2019
A long-duration solar flare measuring C1.3 at its peak erupted from Region 2734 (Alpha) at 03:19 UTC on March 8, 2019. The event started at 03:07, peaked at 03:19 and ended at 03:58 UTC. This event was associated with a Type II Radio Emission registered at 03:15 UTC...
March 08, 2019
An isolated, negative polarity Coronal Hole High Speed Stream (CH HSS) is affecting our planet on February 27 and 28, 2019, causing isolated periods of geomagnetic storming. Solar winds over the past 24 hours were indicative of an anticipated Solar Sector Boundary...
February 28, 2019
Cosmic rays in Earth's atmosphere are intensifying for the 4th year in a row as the 11-year solar cycle plunges into one of the deepest minima of the Space Age. The finding comes from a campaign of almost weekly high-altitude balloon launches conducted by the...
February 27, 2019
A weak solar flare measuring C5.0 at its peak erupted from Active Region 2733 at 13:22 UTC on January 26, 2019. The eruption started at 13:12 and ended at 13:34 UTC. This was the strongest solar flare since February 18, 2018. It was preceded by B1.5 at 03:49 UTC,...
January 26, 2019
A large negative polarity coronal hole is affecting our planet, causing G1 - Minor geomagnetic storming. Geomagnetic K-index of 5 (G1 - Minor geomagnetic storm) threshold was reached at 01:37 UTC, January 5, 2019. Solar wind parameters, as measured by the DSCOVR...
January 05, 2019
A positive polarity coronal hole high speed stream (CH HSS) is affecting our planet since late December 27, sparking G1 - Minor geomagnetic storm. Periods of active conditions are likely through December 29 followed by quiet to unsettled activity on December 30...
December 28, 2018
Our planet is under the influence of a positive polarity Coronal Hole High Speed Stream (CH HSS) over the past 24 hours. Geomagnetic storms reaching G2 - Moderate levels were registered November 5. Solar wind parameters reflected the passage of a Solar Sector...
November 05, 2018
Earth is under the influence of a positive polarity coronal hole high speed stream (CH HSS) on October 7 and 8, 2018. G1 - Minor geomagnetic storm conditions were observed at 16:22 UTC and 20:42 UTC on October 7, 2018. A G2 warning has been issued and is valid until...
October 08, 2018
A G2 - Moderate geomagnetic storm watch has been issued for September 11, 2018 due to the onset of positive polarity coronal hole high speed stream. Solar wind parameters over the past 24 hours were descriptive of the passage of Co-rotating Interaction Region (CIR)...
September 11, 2018
G3 Strong geomagnetic storm levels associated with the passage of slow-moving August 20th Coronal Mass Ejection were observed early August 26, 2018. A faint and slow-moving CME was first seen in LASCO coronagraph imagery at approximately 22:00 UTC on August 20. The...
August 26, 2018
Two plasma filament eruptions were detected on the Sun on July 5, 2018, and it seems at least one weak Earth-directed Coronal Mass Ejection (CME) was produced; ETA July 9 or 10. In addition, a relatively strong farside eruption took place on July 5 and its CME (not...
July 06, 2018
A weak positive polarity Coronal Hole High Speed Stream (CH HSS) affecting our planet since late June 17, 2018, sparked a G1 - Minor geomagnetic storm at 02:56 UTC on June 18. Solar wind parameters, as measured by the DSCOVR spacecraft located at the L1 point, were...
June 18, 2018
A negative polarity Coronal Hole High Speed Stream (CH HSS) is affecting our planet today, sparking G1 - Minor geomagnetic storming. G1 threshold was reached at 13:29 UTC on June 1, 2018. Solar wind parameters became enhanced over the past 24 hours due to the effect...
June 01, 2018
G2 - Moderate geomagnetic conditions were observed on May 6, 2018 in response to the influence of a negative polarity coronal hole high speed solar wind stream. G1 - Minor geomagnetic storm conditions were first observed at 17:59 UTC on May 5, followed by G2 at...
May 06, 2018
Current solar cycle 24 is declining more quickly than forecast, NOAA's Space Weather Prediction Center (SWPC) reports. The smoothed, predicted sunspot number for April to May 2018 is about 15. However, the actual monthly values have been lower, they say. Will...
April 27, 2018