Moderate Geomagnetic Storm Alert Issued for Taiwan, Disruptions Expected

Taiwan's Central Weather Administration has issued a space weather warning, anticipating a moderate geomagnetic storm that could disrupt communications and navigation systems. The storm is expected to commence Monday afternoon at 5 PM and persist for approximately 21 hours.

The geomagnetic disturbance is attributed to a significant coronal mass ejection (CME) event associated with an active region on the sun's surface. This solar activity is predicted to pass through near-Earth space, leading to a notable increase in the density and speed of the solar wind. The administration's analysis, based on NOAA WSA-Enlil model data, suggests the geomagnetic disturbance could briefly reach a moderate storm level (Kp=7, G3).

During the storm's duration, temporary interruptions are anticipated for satellite navigation systems, as well as low and high-frequency radio communications. The storm may also trigger false alarms in some power system protection devices, requiring voltage adjustments. Additionally, operations of spacecraft could be affected, with potential for charge accumulation on satellite components and increased drag for low-orbit satellites, necessitating attitude corrections.

While the primary impacts are on technology and infrastructure, the geomagnetic storm may also enhance auroral activity, potentially visible at magnetic latitudes as low as 50 degrees. The alert serves as a precautionary measure for sectors reliant on stable satellite and radio communications, as well as power grid operators.