Sun is again getting active with the sunspot that spewed a strong solar flare. Here is what NOAA forecasters have said.
Potential G2-Class Geomagnetic Storm on May 31: Solar Flares and CMEs Impact Earth’s Space Weather
The fear of solar storms is again revolving around our heads. The old sunspot AR3664, which had unleashed a powerful solar flare impacting Earth with the strongest auroras in the last two decades, is still active. NOAA experts have confirmed that on May 29th, it produced an X1.4-class solar flare.
NOAA forecasters have highlighted the possibility of G2-class geomagnetic storms on May 31 due to a Coronal Mass Ejection (CME) propelled into space by a recent X-flare. The CME is expected to graze Earth’s magnetic field, causing geomagnetic disturbances. However, the forecast remains uncertain with NOAA predicting a significant impact, while NASA models suggest the CME may narrowly miss Earth.
NOAA has further confirmed in its forecast that “G1-G2 (Minor-Moderate) geomagnetic storming is likely to commence by late 31 May and continue into 01 Jun due to flanking CME effects from the aforementioned X1.4 flare and subsequent CME eruption of 29 May.”
This intense burst of solar radiation resulted in a deep shortwave radio blackout across the Americas, impacting ham radio operators who likely experienced signal loss at frequencies below 30 MHz for 60 to 90 minutes following the flare onset.
Implications of Geomagnetic StormsGeomagnetic storms, such as the potential G2-class event forecasted, can have significant effects on Earth. These storms result from interactions between CMEs and Earth’s magnetic field, leading to disturbances that can impact satellite operations, communication systems, and navigation technologies. Moreover, they can enhance auroras, making them visible at lower latitudes than usual.
The upcoming storm may provide an opportunity for skywatchers to witness spectacular auroras, especially in regions closer to the poles. However, operators of communication and navigation systems need to prepare for possible disruptions.
Shambhu Kumar is a science communicator, making complex scientific topics accessible to all. His articles explore breakthroughs in various scientific disciplines, from space exploration to cutting-edge research.
