G1 – Minor Geomagnetic Storm Watch issued for October 19 and 20, 2026
A G1 – Minor Geomagnetic Storm Watch is in effect for October 19 and 20, 2026, with impacts mainly at high geomagnetic latitudes.
Geomagnetic storms
G1 – Minor Geomagnetic Storm Watch issued for October 20, 2026
A G1 – Minor Geomagnetic Storm Watch is in effect for October 20, 2026. Minor impacts may be observed at high latitudes.
ALERT: Geomagnetic K-index of 4 – Geomagnetic Storm Alert issued on October 16
A Geomagnetic K-index of 4 Alert was issued on October 16, 2026, valid for the synoptic period 18:00–21:00 UTC.
G1 – Minor Geomagnetic Storm Watch issued for October 13, 2026
A G1 – Minor Geomagnetic Storm Watch is in effect for October 13, 2026. The Watch is valid for minor geomagnetic storm conditions on this date.
G2 – Moderate Geomagnetic Storm Watch issued for October 11
A G2 – Moderate Geomagnetic Storm Watch was issued for October 11, 2026, but has been cancelled as conditions no longer warrant a G2 Watch.
G1 – Minor Geomagnetic Storm Alert issued on October 10
A G1 – Minor Geomagnetic Storm Alert was issued on October 10, 2026, valid from 21:00 to 24:00 UTC.
G3 – Strong Geomagnetic Storm Alert issued on October 10
A G3 – Strong Geomagnetic Storm Alert was issued on October 10, 2026. The alert is valid for the synoptic period 18:00 to 21:00 UTC.
G2 – Moderate Geomagnetic Storm Alert issued on October 10
A G2 – Moderate Geomagnetic Storm Alert was issued for October 10, 2026, with the alert valid from 18:00 UTC to 21:00 UTC.
G1 – Minor Geomagnetic Storm Alert issued on October 10
A G1 – Minor Geomagnetic Storm Alert was issued on October 10, 2026 from 18:00 UTC to 21:00 UTC. Active Warning.
G3 – Strong Geomagnetic Storm Alert issued on October 10
A G3 – Strong Geomagnetic Storm Alert was issued at 17:58 UTC on October 10, 2026. The Alert is active for the 15:00-18:00 UTC synoptic period.
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