2026-05-18
Historical snapshot — data recorded on 2026-08-12, not live
Space weather — 2026-05-18
Daily Statistics Brief
On 2026-05-18, the planetary Kp index peaked at 5.6 (G2 moderate). solar wind speed reached 736 km/s and Bz dipped to -16 nT. Auroral hemispheric power was 218 GW. The Dst index reached -84 nT.
Aurora Oval — Peak Kp 5.6
Active storm — aurora oval expanded equatorward.
Auroral power: 218 GW
Kp max5.6Kp now5.6Wind736 km/sBz-16 nTAurora218 GWDst-84 nTFlare—NEAs0