AuroraMeteo
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G3Peak 1 October 1991 at 21:00 UTC

Northern Lights on 1 October 1991 at 21:00 UTC (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 24 hours.

03579 G1 G3 Mon 30 Sept 18:00 UTC · Kp 4.33 Mon 30 Sept 21:00 UTC · Kp 3.67 Tue 1 Oct 00:00 UTC · Kp 3.33 Tue 1 Oct 03:00 UTC · Kp 3.67 Tue 1 Oct 06:00 UTC · Kp 5.00 Tue 1 Oct 09:00 UTC · Kp 3.33 Tue 1 Oct 12:00 UTC · Kp 3.67 Tue 1 Oct 15:00 UTC · Kp 3.33 Tue 1 Oct 18:00 UTC · Kp 7.00 Tue 1 Oct 21:00 UTC · Kp 7.33 Wed 2 Oct 00:00 UTC · Kp 6.00 Wed 2 Oct 03:00 UTC · Kp 6.33 Wed 2 Oct 06:00 UTC · Kp 5.67 Wed 2 Oct 09:00 UTC · Kp 5.67 Wed 2 Oct 12:00 UTC · Kp 6.33 Wed 2 Oct 15:00 UTC · Kp 6.00 Wed 2 Oct 18:00 UTC · Kp 4.00 Wed 2 Oct 21:00 UTC · Kp 4.00 Thu 3 Oct 00:00 UTC · Kp 3.33 Thu 3 Oct 03:00 UTC · Kp 3.67 Thu 3 Oct 06:00 UTC · Kp 4.00 Thu 3 Oct 09:00 UTC · Kp 3.67 Thu 3 Oct 12:00 UTC · Kp 3.33 Thu 3 Oct 15:00 UTC · Kp 2.33 Tue 1 OctWed 2 OctThu 3 Oct
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

7,673 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 2,838 Chicago, Seattle, Boston, Portland Pittsburgh
United Kingdom 1,097 London, Birmingham, Glasgow, Manchester Basingstoke
Canada 957 Toronto, Montreal, Calgary, Ottawa Yarmouth
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
New Zealand 40 Christchurch, Dunedin, Invercargill, Rolleston Rangiora
Iceland 37 Reykjavík, Kópavogur, Hafnarfjörður, Reykjanesbær Vík í Mýrdal
Australia 21 Hobart, Launceston, Devonport, Mount Gambier Mount Gambier
Greenland 14 Nuuk, Sisimiut, Ilulissat, Qaqortoq Nanortalik
Faroe Islands 11 Tórshavn, Klaksvík, Hoyvík, Argir Argir
Kazakhstan 4 Astana, Kostanay, Petropavl, Kokshetau Astana
Belgium 3 Turnhout, Knokke-Heist, Kapellen Turnhout
China 1 Mohe Mohe
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

3,544 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.

← 1 October 1991 · 4 October 1991 →