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G3Peak 15 July 2012 at 18:00 UTC

Northern Lights on 15 July 2012 (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 42 hours.

03579 G1 G3 Fri 13 Jul 18:00 UTC · Kp 0.33 Fri 13 Jul 21:00 UTC · Kp 0.33 Sat 14 Jul 00:00 UTC · Kp 0.33 Sat 14 Jul 03:00 UTC · Kp 0.67 Sat 14 Jul 06:00 UTC · Kp 0.67 Sat 14 Jul 09:00 UTC · Kp 1.00 Sat 14 Jul 12:00 UTC · Kp 2.33 Sat 14 Jul 15:00 UTC · Kp 3.00 Sat 14 Jul 18:00 UTC · Kp 5.67 Sat 14 Jul 21:00 UTC · Kp 5.00 Sun 15 Jul 00:00 UTC · Kp 4.33 Sun 15 Jul 03:00 UTC · Kp 5.33 Sun 15 Jul 06:00 UTC · Kp 6.67 Sun 15 Jul 09:00 UTC · Kp 6.00 Sun 15 Jul 12:00 UTC · Kp 5.33 Sun 15 Jul 15:00 UTC · Kp 6.00 Sun 15 Jul 18:00 UTC · Kp 7.00 Sun 15 Jul 21:00 UTC · Kp 6.00 Mon 16 Jul 00:00 UTC · Kp 6.33 Mon 16 Jul 03:00 UTC · Kp 5.33 Mon 16 Jul 06:00 UTC · Kp 4.67 Mon 16 Jul 09:00 UTC · Kp 4.33 Mon 16 Jul 12:00 UTC · Kp 5.00 Mon 16 Jul 15:00 UTC · Kp 4.67 Mon 16 Jul 18:00 UTC · Kp 2.67 Mon 16 Jul 21:00 UTC · Kp 3.00 Tue 17 Jul 00:00 UTC · Kp 3.67 Tue 17 Jul 03:00 UTC · Kp 4.67 Tue 17 Jul 06:00 UTC · Kp 4.33 Tue 17 Jul 09:00 UTC · Kp 1.67 Tue 17 Jul 12:00 UTC · Kp 2.00 Tue 17 Jul 15:00 UTC · Kp 2.67 Sat 14 JulSun 15 JulMon 16 JulTue 17 Jul
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

2,585 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 1,201 Chicago, Seattle, Boston, Portland Pittsburgh
United Kingdom 412 Glasgow, Manchester, Sheffield, Leeds Nottingham
Canada 402 Toronto, Montreal, Calgary, Ottawa Eastern Passage
Sweden 120 Stockholm, Gothenburg, Malmö, Uppsala Trelleborg
Denmark 94 Copenhagen, Aarhus, Odense, Aalborg Nykøbing Falster
Germany 84 Hamburg, Bremen, Kiel, Lübeck Bremen
Poland 73 Gdańsk, Szczecin, Gdynia, Olsztyn Pyrzyce
Ireland 49 Dublin, Limerick, Galway, Tallaght Kilkenny
Latvia 39 Riga, Daugavpils, Liepāja, Jelgava Daugavpils
Lithuania 31 Vilnius, Kaunas, Klaipeda City Municipality, Šiauliai Druskininkai
Estonia 21 Tallinn, Tartu, Narva, Pärnu Võru
New Zealand 17 Christchurch, Dunedin, Invercargill, Rolleston Rangiora
Australia 15 Melbourne, Geelong, Hobart, Ballarat Ballarat
Norway 14 Kristiansand, Fredrikstad, Sandefjord, Sarpsborg Mandal
Netherlands 7 Groningen, Leeuwarden, Drachten, Sneek Drachten
Kazakhstan 4 Astana, Kostanay, Petropavl, Kokshetau Astana
Finland 2 Raseborg, Ekenäs Raseborg
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

2,920 more towns could have caught a faint red or green glow low on the horizon with a phone or camera.

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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