AuroraMeteo
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G2Peak 25 September 1991 at 21:00 UTC

Northern Lights on 25 September 1991 (Kp 6.3): Where They Were Visible

Kp reached 6.3. At that level the edge of the auroral oval reaches about 53.8° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 49.3°. Activity stayed at storm level (Kp 5 or more) for 48 hours.

03579 G1 G3 Tue 24 Sept 12:00 UTC · Kp 1.67 Tue 24 Sept 15:00 UTC · Kp 1.67 Tue 24 Sept 18:00 UTC · Kp 1.67 Tue 24 Sept 21:00 UTC · Kp 2.67 Wed 25 Sept 00:00 UTC · Kp 4.00 Wed 25 Sept 03:00 UTC · Kp 4.67 Wed 25 Sept 06:00 UTC · Kp 3.67 Wed 25 Sept 09:00 UTC · Kp 3.67 Wed 25 Sept 12:00 UTC · Kp 5.00 Wed 25 Sept 15:00 UTC · Kp 6.00 Wed 25 Sept 18:00 UTC · Kp 5.67 Wed 25 Sept 21:00 UTC · Kp 6.33 Thu 26 Sept 00:00 UTC · Kp 5.00 Thu 26 Sept 03:00 UTC · Kp 4.33 Thu 26 Sept 06:00 UTC · Kp 4.67 Thu 26 Sept 09:00 UTC · Kp 4.67 Thu 26 Sept 12:00 UTC · Kp 4.67 Thu 26 Sept 15:00 UTC · Kp 4.00 Thu 26 Sept 18:00 UTC · Kp 4.67 Thu 26 Sept 21:00 UTC · Kp 4.33 Fri 27 Sept 00:00 UTC · Kp 5.00 Fri 27 Sept 03:00 UTC · Kp 5.67 Fri 27 Sept 06:00 UTC · Kp 5.00 Fri 27 Sept 09:00 UTC · Kp 5.00 Fri 27 Sept 12:00 UTC · Kp 5.00 Fri 27 Sept 15:00 UTC · Kp 5.33 Fri 27 Sept 18:00 UTC · Kp 5.00 Fri 27 Sept 21:00 UTC · Kp 3.33 Sat 28 Sept 00:00 UTC · Kp 4.33 Sat 28 Sept 03:00 UTC · Kp 5.00 Sat 28 Sept 06:00 UTC · Kp 4.00 Sat 28 Sept 09:00 UTC · Kp 4.67 Sat 28 Sept 12:00 UTC · Kp 5.00 Sat 28 Sept 15:00 UTC · Kp 3.67 Sat 28 Sept 18:00 UTC · Kp 5.67 Wed 25 SeptThu 26 SeptFri 27 SeptSat 28 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

2,202 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 578 Seattle, Detroit, Milwaukee, Minneapolis Cedar Rapids
United Kingdom 414 Glasgow, Manchester, Sheffield, Leeds Nottingham
Canada 392 Toronto, Montreal, Calgary, Ottawa St. John's
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
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
Iceland 18 Reykjavík, Kópavogur, Hafnarfjörður, Reykjanesbær Vík í Mýrdal
New Zealand 16 Christchurch, Dunedin, Invercargill, Rolleston Christchurch
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
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

3,103 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.

← 9 September 1991 · 28 September 1991 →