G3 – Strong Geomagnetic Storm Watch cancelled for June 8, 2026

A G3 – Strong Geomagnetic Storm Watch originally issued for June 8, 2026, has been cancelled. Additionally, the G2 – Moderate Geomagnetic Storm Watch for June 9, 2026, has also been cancelled. These updates were issued by the NOAA Space Weather Prediction Center at 21:17 UTC on June 8, 2026.

The cancellations were made due to current space weather conditions that no longer reflect any influence from a Coronal Mass Ejection (CME). As a result, the anticipated geomagnetic storm activity is not expected to reach G3 – Strong or G2 – Moderate levels during this timeframe. G3 storm conditions, when observed, can impact high-latitude power systems and spacecraft operations, while G2 activity can cause moderate fluctuations in power grids and increase auroral activity at lower latitudes. However, neither level of storming is expected based on the latest measurements and modeling.

According to the latest forecast discussion, no new Earth-directed CMEs have been seen in available imagery. Recent solar activity has consisted mainly of lower-level C-class flares. While a CME that left the Sun on June 6, 2026, was previously anticipated to cause disturbed geomagnetic conditions on Earth, updated observations showed the bulk of the material moved mostly south and east of the Sun-Earth line. The solar wind environment remains enhanced, but is no longer expected to result in geomagnetic storming reaching G3 or G2 levels.