AuroraMeteo
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G4Peak 13 July 1991 at 15:00 UTC

Northern Lights on 13 July 1991 (Kp 8.7): Where They Were Visible

Kp reached 8.7. At that level the edge of the auroral oval reaches about 49.2° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 44.7°. Activity stayed at storm level (Kp 5 or more) for 42 hours.

03579 G1 G3 Fri 12 Jul 00:00 UTC · Kp 3.00 Fri 12 Jul 03:00 UTC · Kp 3.00 Fri 12 Jul 06:00 UTC · Kp 3.33 Fri 12 Jul 09:00 UTC · Kp 5.67 Fri 12 Jul 12:00 UTC · Kp 4.67 Fri 12 Jul 15:00 UTC · Kp 3.67 Fri 12 Jul 18:00 UTC · Kp 3.33 Fri 12 Jul 21:00 UTC · Kp 4.00 Sat 13 Jul 00:00 UTC · Kp 4.67 Sat 13 Jul 03:00 UTC · Kp 5.00 Sat 13 Jul 06:00 UTC · Kp 6.67 Sat 13 Jul 09:00 UTC · Kp 7.00 Sat 13 Jul 12:00 UTC · Kp 8.00 Sat 13 Jul 15:00 UTC · Kp 8.67 Sat 13 Jul 18:00 UTC · Kp 6.00 Sat 13 Jul 21:00 UTC · Kp 7.33 Sun 14 Jul 00:00 UTC · Kp 6.67 Sun 14 Jul 03:00 UTC · Kp 6.33 Sun 14 Jul 06:00 UTC · Kp 6.67 Sun 14 Jul 09:00 UTC · Kp 6.00 Sun 14 Jul 12:00 UTC · Kp 6.33 Sun 14 Jul 15:00 UTC · Kp 4.33 Sun 14 Jul 18:00 UTC · Kp 5.33 Sun 14 Jul 21:00 UTC · Kp 3.67 Mon 15 Jul 00:00 UTC · Kp 4.33 Mon 15 Jul 03:00 UTC · Kp 3.33 Mon 15 Jul 06:00 UTC · Kp 2.33 Mon 15 Jul 09:00 UTC · Kp 2.67 Mon 15 Jul 12:00 UTC · Kp 1.67 Mon 15 Jul 15:00 UTC · Kp 1.33 Mon 15 Jul 18:00 UTC · Kp 2.33 Fri 12 JulSat 13 JulSun 14 JulMon 15 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

6,719 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 2,829 Chicago, Seattle, Boston, Portland Thornton
United Kingdom 1,093 London, Birmingham, Glasgow, Manchester Basingstoke
Canada 929 Toronto, Montreal, Calgary, Ottawa Yarmouth
Germany 406 Berlin, Hamburg, Essen, Dortmund Leipzig
Sweden 301 Stockholm, Gothenburg, Malmö, Linköping Trelleborg
Poland 299 Warsaw, Łódź, Poznań, Gdańsk Lublin
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 54 Christchurch, Wellington, Dunedin, Lower Hutt Whanganui
Australia 37 Melbourne, Adelaide, Geelong, Hobart Tuggeranong
Norway 18 Kristiansand, Arendal, Grimstad, Vennesla Mandal
China 7 Daxing’anling, Jiagedaqi District, Genhe, Oroqen Zizhiqi Jiagedaqi District
Belgium 3 Turnhout, Knokke-Heist, Kapellen Turnhout
Kazakhstan 3 Kostanay, Petropavl, Kokshetau Kostanay
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

3,616 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.

← 12 July 1991 · 17 July 1991 →