AuroraMeteo
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G3Peak 25 September 2001 at 21:00 UTC

Northern Lights on 25 September 2001 (Kp 7.3): Where They Were Visible

Kp reached 7.3. At that level the edge of the auroral oval reaches about 51.8° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 47.3°. Activity stayed at storm level (Kp 5 or more) for 15 hours.

03579 G1 G3 Mon 24 Sept 18:00 UTC · Kp 1.67 Mon 24 Sept 21:00 UTC · Kp 0.67 Tue 25 Sept 00:00 UTC · Kp 0.67 Tue 25 Sept 03:00 UTC · Kp 2.00 Tue 25 Sept 06:00 UTC · Kp 2.00 Tue 25 Sept 09:00 UTC · Kp 1.00 Tue 25 Sept 12:00 UTC · Kp 1.00 Tue 25 Sept 15:00 UTC · Kp 0.67 Tue 25 Sept 18:00 UTC · Kp 6.00 Tue 25 Sept 21:00 UTC · Kp 7.33 Wed 26 Sept 00:00 UTC · Kp 5.67 Wed 26 Sept 03:00 UTC · Kp 4.00 Wed 26 Sept 06:00 UTC · Kp 5.00 Wed 26 Sept 09:00 UTC · Kp 4.67 Wed 26 Sept 12:00 UTC · Kp 1.67 Wed 26 Sept 15:00 UTC · Kp 2.00 Wed 26 Sept 18:00 UTC · Kp 2.00 Wed 26 Sept 21:00 UTC · Kp 2.00 Thu 27 Sept 00:00 UTC · Kp 1.33 Thu 27 Sept 03:00 UTC · Kp 1.67 Thu 27 Sept 06:00 UTC · Kp 1.33 Thu 27 Sept 09:00 UTC · Kp 2.67 Tue 25 SeptWed 26 SeptThu 27 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

6,230 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 1,487 Seattle, Detroit, Milwaukee, Minneapolis Cedar Rapids
United Kingdom 1,097 London, Birmingham, Glasgow, Manchester Basingstoke
Canada 908 Toronto, Montreal, Calgary, Ottawa Goulds
Sweden 474 Stockholm, Gothenburg, Malmö, Uppsala Trelleborg
Finland 454 Helsinki, Espoon keskus, Tampere urban area, Vantaa Hanko
Germany 406 Berlin, Hamburg, Essen, Dortmund Leipzig
Poland 299 Warsaw, Łódź, Poznań, Gdańsk Lublin
Norway 276 Oslo, Bergen, Trondheim, Stavanger Mandal
Denmark 260 Copenhagen, Aarhus, Odense, Aalborg Alholm
Netherlands 140 Rotterdam, Amsterdam, The Hague, Utrecht Venlo
Ireland 126 Dublin, Cork, Limerick, Galway Cork
Latvia 76 Riga, Daugavpils, Liepāja, Jelgava Daugavpils
Lithuania 73 Vilnius, Kaunas, Klaipeda City Municipality, Šiauliai Druskininkai
Estonia 65 Tallinn, Tartu, Narva, Pärnu Võru
Iceland 37 Reykjavík, Kópavogur, Hafnarfjörður, Reykjanesbær Vík í Mýrdal
Greenland 14 Nuuk, Sisimiut, Ilulissat, Qaqortoq Nanortalik
New Zealand 14 Dunedin, Invercargill, Mosgiel, Gore Oamaru
Faroe Islands 11 Tórshavn, Klaksvík, Hoyvík, Argir Argir
Australia 5 Hobart, Bellerive, Margate, Bruny Island (Alonnah) Hobart
Kazakhstan 4 Astana, Kostanay, Petropavl, Kokshetau Astana
Belgium 3 Turnhout, Knokke-Heist, Kapellen Turnhout
Svalbard & Jan Mayen 1 Longyearbyen Longyearbyen
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

4,173 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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