G1 – Minor Geomagnetic Storm Alert issued on July 13
A G1 – Minor Geomagnetic Storm Alert was issued for July 13, 2025. The alert was triggered at 04:33 UTC and is active during 03:00–06:00 UTC.
Geomagnetic storms
ALERT: Geomagnetic K-index of 4 Alert issued on July 11
A Geomagnetic K-index of 4 Alert was issued on July 11, 2025. The alert is valid from 09:00 UTC to 12:00 UTC.
ALERT: Geomagnetic K-index of 4 Alert issued on July 8
A Geomagnetic K-index of 4 Alert was issued on July 8, 2025. The alert is valid for the synoptic period 03:00–06:00 UTC.
G1 – Minor Geomagnetic Storm Alert issued on July 7, 2025
A G1 – Minor Geomagnetic Storm Alert was issued for July 7, 2025, with active conditions from 00:00 to 03:00 UTC.
G1 – Minor Geomagnetic Storm Alert issued on July 6
A G1 – Minor Geomagnetic Storm Alert was issued on July 6, 2025. The Alert is active for the 2100–2400 UTC synoptic period.
G1 – Minor Geomagnetic Storm Alert issued on July 6
A G1 – Minor Geomagnetic Storm Alert was issued on July 6, 2025. The alert is valid from 03:00 UTC to 06:00 UTC.
ALERT: Geomagnetic K-index of 4 Alert issued on July 4
A Geomagnetic K-index of 4 Alert has been issued for July 4, 2025. The threshold was reached at 22:48 UTC during the 21:00–24:00 UTC synoptic period.
K-index of 4 – Geomagnetic Storm Alert issued on July 3
An ALERT: Geomagnetic K-index of 4 was issued on July 3, 2025. The alert is valid for the synoptic period 1200–1500 UTC.
G1 – Minor Geomagnetic Storm Alert issued on June 27
A G1 – Minor Geomagnetic Storm Alert was issued on June 27, 2025. The alert is active for the synoptic period 00:00–03:00 UTC.
G1 – Minor Geomagnetic Storm Alert issued on June 26
A G1 – Minor Geomagnetic Storm Alert was issued on June 26, 2025. The alert is active for the period 21:00 to 24:00 UTC.
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