Northern Lights to Appear in Some Northern States This Week, Say Forecasters
Aurora enthusiasts in the lower 48 states may be treated to a spectacular display of the northern lights this Thursday night, according to forecasters at the National Oceanic and Atmospheric Administration (NOAA). The agency's three-day forecast warns that lingering solar winds will continue to impact Earth's magnetic field, potentially triggering geomagnetic storms.
The Kp index, a measure of auroral activity, is expected to reach 3 out of 9 on Thursday night, suggesting that the lights could appear brighter and more dynamic, with increased movement and formations. This level of activity typically results in minor to moderate geomagnetic storms, which can cause the aurora to appear more intense and visible further south.
In terms of the source of these solar winds, forecasters point to a coronal hole on the sun, a region that appears darker in photographs due to its cooler and less dense nature. These open magnetic fields allow solar winds to escape at high speeds, which can then interact with Earth's magnetic field, triggering geomagnetic storms.
According to NOAA's scale, these storms are only expected to be G2 out of five in intensity, but even at this level, they can cause the aurora to appear more vibrant and visible. While the displays are unlikely to reach extreme levels, forecasters say that some northern states may still experience spectacular views of the northern lights on Thursday night.
Aurora enthusiasts in the lower 48 states may be treated to a spectacular display of the northern lights this Thursday night, according to forecasters at the National Oceanic and Atmospheric Administration (NOAA). The agency's three-day forecast warns that lingering solar winds will continue to impact Earth's magnetic field, potentially triggering geomagnetic storms.
The Kp index, a measure of auroral activity, is expected to reach 3 out of 9 on Thursday night, suggesting that the lights could appear brighter and more dynamic, with increased movement and formations. This level of activity typically results in minor to moderate geomagnetic storms, which can cause the aurora to appear more intense and visible further south.
In terms of the source of these solar winds, forecasters point to a coronal hole on the sun, a region that appears darker in photographs due to its cooler and less dense nature. These open magnetic fields allow solar winds to escape at high speeds, which can then interact with Earth's magnetic field, triggering geomagnetic storms.
According to NOAA's scale, these storms are only expected to be G2 out of five in intensity, but even at this level, they can cause the aurora to appear more vibrant and visible. While the displays are unlikely to reach extreme levels, forecasters say that some northern states may still experience spectacular views of the northern lights on Thursday night.