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G3Peak 2 September 2005 at 18:00 UTC

Northern Lights on 2 September 2005 (Kp 6.7): Where They Were Visible

Kp reached 6.7. At that level the edge of the auroral oval reaches about 53.2° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 48.7°. Activity stayed at storm level (Kp 5 or more) for 12 hours.

03579 G1 G3 Thu 1 Sept 15:00 UTC · Kp 1.00 Thu 1 Sept 18:00 UTC · Kp 1.00 Thu 1 Sept 21:00 UTC · Kp 2.67 Fri 2 Sept 00:00 UTC · Kp 2.67 Fri 2 Sept 03:00 UTC · Kp 3.33 Fri 2 Sept 06:00 UTC · Kp 4.00 Fri 2 Sept 09:00 UTC · Kp 3.33 Fri 2 Sept 12:00 UTC · Kp 4.33 Fri 2 Sept 15:00 UTC · Kp 5.67 Fri 2 Sept 18:00 UTC · Kp 6.67 Fri 2 Sept 21:00 UTC · Kp 4.00 Sat 3 Sept 00:00 UTC · Kp 5.33 Sat 3 Sept 03:00 UTC · Kp 5.00 Sat 3 Sept 06:00 UTC · Kp 4.33 Sat 3 Sept 09:00 UTC · Kp 4.33 Sat 3 Sept 12:00 UTC · Kp 3.67 Sat 3 Sept 15:00 UTC · Kp 1.67 Sat 3 Sept 18:00 UTC · Kp 1.67 Sat 3 Sept 21:00 UTC · Kp 3.00 Sun 4 Sept 00:00 UTC · Kp 3.67 Sun 4 Sept 03:00 UTC · Kp 4.00 Fri 2 SeptSat 3 SeptSun 4 Sept
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

1,876 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 557 Seattle, Detroit, Milwaukee, Minneapolis Cedar Rapids
Canada 387 Toronto, Montreal, Calgary, Ottawa LaSalle
United Kingdom 169 Glasgow, Edinburgh, Belfast, Newcastle upon Tyne Middlesbrough
Sweden 148 Stockholm, Gothenburg, Malmö, Uppsala Trelleborg
Finland 123 Helsinki, Espoon keskus, Tampere urban area, Vantaa Raseborg
Denmark 94 Copenhagen, Aarhus, Odense, Aalborg Nykøbing Falster
Poland 90 Gdańsk, Szczecin, Bydgoszcz, Białystok Bydgoszcz
Germany 84 Hamburg, Bremen, Kiel, Lübeck Bremen
Norway 77 Oslo, Bergen, Trondheim, Stavanger Mandal
Latvia 39 Riga, Daugavpils, Liepāja, Jelgava Daugavpils
Lithuania 31 Vilnius, Kaunas, Klaipeda City Municipality, Šiauliai Druskininkai
Estonia 21 Tallinn, Tartu, Narva, Pärnu Võru
Iceland 18 Reykjavík, Kópavogur, Hafnarfjörður, Reykjanesbær Vík í Mýrdal
New Zealand 9 Dunedin, Invercargill, Mosgiel, Wānaka Wānaka
Australia 7 Hobart, Launceston, Devonport, Burnie Burnie
Netherlands 7 Groningen, Leeuwarden, Drachten, Sneek Drachten
Greenland 6 Nuuk, Sisimiut, Ilulissat, Qaqortoq Qaqortoq
Faroe Islands 4 Tórshavn, Klaksvík, Fuglafjørður, Miðvágur Tórshavn
Kazakhstan 3 Kostanay, Petropavl, Kokshetau Kostanay
Ireland 2 Letterkenny, Sligo Sligo
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

3,174 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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