G1 – Minor Geomagnetic Storm Alert issued on May 5, 2026
A G1 – Minor Geomagnetic Storm Alert was issued on May 5, 2026. The alert is active from 00:00 UTC to 03:00 UTC.
Geomagnetic storms
G1 – Minor Geomagnetic Storm Alert issued on May 4, 2026
A G1 – Minor Geomagnetic Storm Alert was issued on May 4, 2026. The alert is valid for the synoptic period from 21:00 to 24:00 UTC.
G2 – Moderate Geomagnetic Storm Alert issued on May 4
A G2 – Moderate Geomagnetic Storm Alert was issued on May 4, 2026. The alert is valid for the 1800–2100 UTC synoptic period.
G1 – Minor Geomagnetic Storm Alert issued on May 4, 2026
A G1 – Minor Geomagnetic Storm Alert was issued on May 4, 2026, valid from 18:00 UTC to 21:00 UTC, with impacts primarily at high latitudes.
ALERT: Geomagnetic K-index of 4 Alert issued on May 4
A Geomagnetic K-index of 4 Alert was issued on May 4, 2026, valid from 15:00 to 18:00 UTC. Minor geomagnetic activity is expected.
G1 – Minor Geomagnetic Storm Alert issued on April 30
A G1 – Minor Geomagnetic Storm Alert was issued for April 30, 2026, after the K-index reached 5 during 21:00–24:00 UTC.
Alert – Geomagnetic K-index of 4 Alert issued on April 30
A Geomagnetic K-index of 4 Alert was issued for April 30, 2026. The Alert is valid for the synoptic period 18:00–21:00 UTC.
ALERT: Geomagnetic K-index of 4 Alert issued on April 26
A Geomagnetic K-index of 4 Alert was issued on April 26, 2026, valid from 03:00 UTC to 06:00 UTC.
G1 – Minor Geomagnetic Storm Watch issued for April 25 and 26, 2026
A G1 – Minor Geomagnetic Storm Watch is in effect for April 25 and 26, 2026, with storming possible late on April 25 into early April 26.
G1 – Minor Geomagnetic Storm Alert issued on April 21, 2026
A G1 – Minor Geomagnetic Storm Alert was issued for April 21, 2026 after K-index reached 5 at 01:48 UTC. The alert is valid during 00:00–03:00 UTC.
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