NOAA Issues G4 Watch as Severe Geomagnetic Storm Threatens Earth Wednesday
As the geomagnetic storm approaches, NOAA has issued a G4 (Severe) Watch for November 12th. This alert indicates a heightened potential for significant geomagnetic activity.
Understanding the Geomagnetic Threat
A coronal mass ejection (CME) plays a crucial role in this phenomenon. When solar material and magnetic fields are expelled from the sun, they can impact Earth and lead to geomagnetic storms. According to the NOAA/NWS Space Weather Prediction Center (SWPC), the CME is expected to reach Earth around mid-day on November 12.
Potential Impacts of the G4 Storm
- Increased Aurora Borealis Visibility: The storm may enhance the viewing conditions for the Northern Lights, potentially visible in regions as far south as northern California.
- Cloud Cover Challenges: Cloudy conditions in parts of the Pacific Northwest may hinder visibility.
- Storm Intensity Monitoring: The true intensity of the CME will be confirmed approximately 1 million miles from Earth.
SWPC officials emphasize that the ultimate impact and intensity of the geomagnetic storm depend on the orientation of the CME’s embedded magnetic field. As the storm system approaches, forecasters will make more informed decisions regarding necessary warnings.
Viewing the Northern Lights
While the potential for stunning displays of the Northern Lights exists, local weather conditions will influence visibility. Predictions indicate that cloud cover may impede views on the west side of the Cascades, but they remain optimistic about sightings.
This situation remains fluid, and updates will be provided as more information becomes available.
