G2 – Moderate Geomagnetic Storm Watch issued for September 9, 2026
A G2 – Moderate Geomagnetic Storm Watch is in effect for September 9, 2026. The Watch was issued at 21:01 UTC.
Geomagnetic storms
G1 – Minor Geomagnetic Storm Alert issued on September 8
A G1 – Minor Geomagnetic Storm Alert was issued on September 8, 2026. The alert is valid for the synoptic period 15:00–18:00 UTC.
G2 – Moderate Geomagnetic Storm Watch issued for September 9, 2026
A G2 – Moderate Geomagnetic Storm Watch is in effect for September 9, 2026. G1 – Minor storm conditions are expected on September 8.
ALERT: G1 – Minor Geomagnetic Storm Alert issued on September 8
A G1 – Minor Geomagnetic Storm Alert was issued on September 8, 2026. The Alert is valid from 06:00 UTC to 09:00 UTC.
G1 – Minor Geomagnetic Storm Watch issued for September 8 and 9, 2026
A G1 – Minor Geomagnetic Storm Watch is in effect for September 8 and 9, 2026. The Watch was issued at 16:35 UTC on September 7, 2026.
ALERT: Geomagnetic K-index of 4 Alert issued on September 7
A Geomagnetic K-index of 4 Alert was issued on September 7, 2026. The alert is valid for the synoptic period 09:00 UTC to 12:00 UTC.
G1 – Minor Geomagnetic Storm Watch issued for September 8, 2026
A G1 – Minor Geomagnetic Storm Watch is in effect for September 8, 2026. The Watch highlights a potential G1 event on this date.
ALERT: Geomagnetic K-index of 4 Alert issued on August 28
A Geomagnetic K-index of 4 Alert was issued for August 28, 2026, valid from 15:00 UTC to 18:00 UTC.
G2 – Moderate Geomagnetic Storm Watch issued for August 28, 2026
A G2 – Moderate Geomagnetic Storm Watch is in effect for August 28 and August 29, 2026. The watch was issued at 16:36 UTC on August 26.
G2 – Moderate Geomagnetic Storm Watch issued for August 28, 2026
A G2 – Moderate Geomagnetic Storm Watch is in effect for August 28, 2026. The highest storm level is expected on this date.
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