What is G3 strong geomagnetic storm?
A G3 (Strong) Geomagnetic Storm Watch is in effect for 30 – 31 October, 2021, following a significant solar flare and Coronal Mass Ejection (CME) from the sun that occurred around 11:35 a.m. EDT on Oct. 28.
What is a G3 warning?
A G3 (Strong) Warning is in effect until 26/1200 UTC due to persistent activity caused by the 20 August coronal mass ejection.
What are the classes of geomagnetic storms?
The size of a geomagnetic storm is classified as moderate (−50 nT > minimum of Dst > −100 nT), intense (−100 nT > minimum Dst > −250 nT) or super-storm (minimum of Dst < −250 nT).
What is the geomagnetic scale?
The NOAA Geomagnetic Storm Scale indicates the severity of geomagnetic storms. It is denoted by a G followed by a number from 1 to 5, with 1 being a minor event, and 5 being an extreme event.
What can a G3 storm do?
The category G3 storm could cause some satellite navigation problems, and auroras as far south as Washington state. “Impacts to our technology from a G3 storm are generally nominal. However, a G3 storm has the potential to drive the aurora further away from its normal polar residence,” the SWPC wrote.
What would a G5 geomagnetic storm do?
The worst case for a G5-class geomagnetic storm is that electrical grid lines could be affected, burning out transformers on Earth and triggering power outages (as happened in Quebec in 1989). Satellite navigation systems might short out in space, and Northern Lights might be seen as far south as Texas and Florida.
What is a G5 storm?
Lastly, a G5 is an extreme geomagnetic storm that deals with major power grid & satellite failures & blackouts. A G5 storm will produce auroras visible towards Florida & southern Texas with the recent sightings dating back in 2003 & 1989.
When was the last G3 geomagnetic storm?
Space weather facts
| Last X-flare | 2021/10/28 | X1.0 |
|---|---|---|
| Last M-flare | 2022/01/01 | M1.1 |
| Last geomagnetic storm | 2022/01/08 | Kp5 (G1) |
What is strong geomagnetic storm?
A geomagnetic storm is a major disturbance of Earth’s magnetosphere that occurs when there is a very efficient exchange of energy from the solar wind into the space environment surrounding Earth. This condition is effective for transferring energy from the solar wind into Earth’s magnetosphere.
What is a G1 geomagnetic storm?
A coronal mass ejection, or CME for short, can create a Geomagnetic Storm on the Earth. Geomagnetic storms are rated on a 1-5 scale, with 1 being the weakest and 5 having the most potential for damage. Even a G1 geomagnetic storm could create issues: there could be weak power grid fluctuations and minor impacts on satellite operations.
What would happen if a G5 class geomagnetic storm hit Earth?
G5 class geomagnetic storms are rare with the last one occurring in 1859. If such a storm were to hit today with modern life’s dependency on electricity and electronics, it would be extremely catastrophic.
What are the space weather scales?
These scales are useful to users of our products and those who are interested in space weather effects. The scales describe the environmental disturbances for three event types: geomagnetic storms, solar radiation storms, and radio blackouts.