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G3Peak 12 May 2021 at 12:00 UTC

Northern Lights on 12 May 2021 (Kp 7): Where They Were Visible

Kp reached 7. At that level the edge of the auroral oval reaches about 52.5° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 48.0°. Activity stayed at storm level (Kp 5 or more) for 6 hours.

03579 G1 G3 Tue 11 May 12:00 UTC · Kp 0.33 Tue 11 May 15:00 UTC · Kp 0.00 Tue 11 May 18:00 UTC · Kp 0.33 Tue 11 May 21:00 UTC · Kp 0.33 Wed 12 May 00:00 UTC · Kp 1.00 Wed 12 May 03:00 UTC · Kp 1.00 Wed 12 May 06:00 UTC · Kp 4.00 Wed 12 May 09:00 UTC · Kp 4.33 Wed 12 May 12:00 UTC · Kp 7.00 Wed 12 May 15:00 UTC · Kp 6.67 Wed 12 May 18:00 UTC · Kp 2.00 Wed 12 May 21:00 UTC · Kp 3.00 Thu 13 May 00:00 UTC · Kp 2.00 Thu 13 May 03:00 UTC · Kp 1.67 Thu 13 May 06:00 UTC · Kp 1.67 Thu 13 May 09:00 UTC · Kp 1.33 Thu 13 May 12:00 UTC · Kp 2.00 Thu 13 May 15:00 UTC · Kp 1.00 Wed 12 MayThu 13 May
Kp 0–3 Kp 4 Kp 5–6 (G1–G2) Kp 7+ (G3+) Times in UTC; faded bars are forecasts.

Three-hourly Kp from GFZ, one day either side of the storm.

Where the aurora could be seen

35 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
New Zealand 18 Christchurch, Dunedin, Invercargill, Rolleston Greymouth
Australia 15 Melbourne, Geelong, Hobart, Ballarat Ballarat
China 1 Mohe Mohe
Kazakhstan 1 Kokshetau Kokshetau
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Whether the aurora was actually seen also depended on the weather. Use this as a guide to where it was possible.

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