Space weather

pink aurora markus varik january 11 2021 f

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...

January 12, 2021

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Unsettled to active geomagnetic field levels expected, G1 geomagnetic storm watch in effect

Unsettled to active geomagnetic field levels are possible on January 5, 2021, due to the onset of an anticipated Solar Sector Boundary Crossing (SSBC) followed by coronal hole influence late in the day. G1 - Minor geomagnetic storm conditions are likely on January 6...

January 05, 2021

solstice aurora by alan c tough scotland via spaceweather f

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....

December 22, 2020

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CME impact detected, G3 - Strong geomagnetic storm watch remains but confidence diminishing

A geomagnetic sudden impulse -- CME produced by a long-duration C7.4 solar flare on December 7, was observed at DSCOVR satellite at the L1 point at 01:32 UTC on December 10. The total field reached 16 nT while wind speeds topped out near 571 km/s, producing a period...

December 10, 2020

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Long-duration C7.4 solar flare produces asymmetric full halo CME, impact expected on December 9

A long-duration solar flare measuring C7.4 at its peak erupted from Active Region 2790 -- positioned in Earth-striking zone -- at 16:32 UTC on December 7, 2020. The event started at 15:46, peaked at 16:32, and ended at 17:33 UTC. An asymmetric full halo coronal mass...

December 08, 2020

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Moderately strong M4.4 solar flare erupts, CME produced

A moderately strong solar flare measuring M4.4 at its peak erupted at 13:11 UTC on November 29, 2020, from a region about to rotate into Earth view. The event started at 12:34 and ended at 13:41 UTC. This is the strongest solar flare in more than 3 years. A Type II...

November 29, 2020

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Biggest sunspot in years producing multiple B- and C-class solar flares

Although solar activity remains at low levels, Active Region 2786 -- the biggest sunspot in years -- has produced multiple C- and B-class flares since November 25. Coronal Mass Ejections (CMEs) were also observed, but none was Earth-directed. While we are still...

November 28, 2020

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Glancing blow CME possible on November 1

A Coronal Mass Ejection (CME) produced by a C4.3 flare at 06:16 UTC on October 27, 2020, was analyzed by the SWPC and determined to be a possible glancing blow on November 1. The source of the flare was a large AR 2778 which produced multiple B- and C-class flares...

October 28, 2020

red auroras oct 13 2020 ft img

'Extremely rare' red auroras seen for two nights in a row over Finland

Extremely rare red auroras were seen over Utsjoki, Finland, on Monday and Tuesday, October 12 and 13, 2020. These natural light display, also referred to as northern lights, are normally green. However, for some reason, the solar wind on Monday excited oxygen at...

October 14, 2020

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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...

September 24, 2020

cme aug 31 2012

SC25 Prediction Panel announces the start of a new solar cycle, expects continued below-average strength

Solar minimum occurred in December 2019, marking the start of a new solar cycle, the Solar Cycle 25 Prediction Panel, an international group of experts co-sponsored by NASA and NOAA, announced on September 15, 2020. The solar minimum between Solar Cycle 24 and 25 -...

September 15, 2020

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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...

August 31, 2020

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Glancing-blow expected after weak B1.2 solar flare

A weak solar flare measuring B1.2 at its peak erupted on August 16, 2020, producing a coronal mass ejection (CME). Consensus model results suggest an arriving glancing blow on August 20 -- producing unsettled to active geomagnetic field conditions, with a chance for...

August 18, 2020

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Study finds correlation between solar activity and large earthquakes worldwide

A new study published in the Nature Scientific Reports on July 13 suggests that powerful eruptions on the Sun can trigger large earthquakes on Earth. In the paper, the authors analyzed 20 years of proton density and velocity data, as recorded by the SOHO satellite,...

July 16, 2020

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Solar storm hits Earth, sparking active geomagnetic conditions

Our Sun launched two solar storms this week, one of which was Earth-directed, Space Weather Physicist Dr. Tamitha Skov reports in her latest space weather forecast released July 14, 2020. The storm has hit, right on time, and all through the night people have been...

July 15, 2020

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First M-class solar flare of Solar Cycle 25 - Impulsive M1.1 at 07:24 UTC on May 29

A moderately strong solar flare measuring M1.1 erupted at 07:24 UTC on May 29, 2020. This is the first M-class solar flare of the new solar cycle -- Solar Cycle 25. The event started at 07:13, peaked at 07:24, and ended at 07:28 UTC. The eruption took place on the...

May 29, 2020

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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...

April 20, 2020