Moderate Geomagnetic Storm to Affect Earth for 21 Hours from Evening; Navigation and Communications May Be Temporarily Disrupted

(Central News Agency, reporter Zhang Xiongfeng, Taipei, 8th) The Central Weather Administration (CWA) issued a moderate geomagnetic storm warning at 9 a.m. today. It is estimated that geomagnetic disturbance will significantly strengthen from 5 p.m. today, with the impact expected to last approximately 21 hours, and the maximum scale may briefly reach the level of a moderate geomagnetic storm.

The CWA's Space Weather Operations Office issued a space weather warning today. An M-class long-duration solar flare occurred on June 6 in an active region on the sun's surface, accompanied by a significant coronal mass ejection (CME) event. This CME is expected to pass through the near-Earth space environment on the evening of the 8th, causing a significant increase in solar wind density and speed in interplanetary space. Geomagnetic disturbance is predicted to strengthen significantly and last for about 21 hours, with the maximum scale potentially briefly reaching the level of a moderate geomagnetic storm.

The CWA warns that satellite navigation, as well as low-frequency and high-frequency radio communications, may experience temporary interruptions. Aurora activity may be observable at latitudes as low as 50 degrees geomagnetic latitude.

Additionally, some protective devices may trigger false alarms and require voltage correction. Some components on artificial satellites may experience charge accumulation, and the atmospheric drag on low-Earth orbit satellites will increase, requiring attitude corrections. (Editor: Li Shuhua) 1150608