AuroraMeteo
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G4Peak 28 July 1990 at 18:00 UTC

Northern Lights on 28 July 1990 (Kp 7.7): Where They Were Visible

Kp reached 7.7. At that level the edge of the auroral oval reaches about 51.2° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 46.7°. Activity stayed at storm level (Kp 5 or more) for 39 hours.

03579 G1 G3 Fri 27 Jul 03:00 UTC · Kp 2.33 Fri 27 Jul 06:00 UTC · Kp 2.00 Fri 27 Jul 09:00 UTC · Kp 2.67 Fri 27 Jul 12:00 UTC · Kp 1.67 Fri 27 Jul 15:00 UTC · Kp 2.33 Fri 27 Jul 18:00 UTC · Kp 3.00 Fri 27 Jul 21:00 UTC · Kp 2.33 Sat 28 Jul 00:00 UTC · Kp 3.00 Sat 28 Jul 03:00 UTC · Kp 4.67 Sat 28 Jul 06:00 UTC · Kp 6.33 Sat 28 Jul 09:00 UTC · Kp 5.00 Sat 28 Jul 12:00 UTC · Kp 6.67 Sat 28 Jul 15:00 UTC · Kp 7.33 Sat 28 Jul 18:00 UTC · Kp 7.67 Sat 28 Jul 21:00 UTC · Kp 7.67 Sun 29 Jul 00:00 UTC · Kp 7.00 Sun 29 Jul 03:00 UTC · Kp 7.00 Sun 29 Jul 06:00 UTC · Kp 6.33 Sun 29 Jul 09:00 UTC · Kp 5.67 Sun 29 Jul 12:00 UTC · Kp 6.00 Sun 29 Jul 15:00 UTC · Kp 4.67 Sun 29 Jul 18:00 UTC · Kp 4.00 Sun 29 Jul 21:00 UTC · Kp 4.33 Mon 30 Jul 00:00 UTC · Kp 2.00 Mon 30 Jul 03:00 UTC · Kp 2.33 Mon 30 Jul 06:00 UTC · Kp 3.00 Mon 30 Jul 09:00 UTC · Kp 3.00 Mon 30 Jul 12:00 UTC · Kp 1.67 Mon 30 Jul 15:00 UTC · Kp 1.67 Sat 28 JulSun 29 JulMon 30 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

7,645 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 3,257 New York City, Brooklyn, Chicago, Queens St. Louis
United Kingdom 1,097 London, Birmingham, Glasgow, Manchester Basingstoke
Canada 940 Toronto, Montreal, Calgary, Ottawa Yarmouth
Germany 406 Berlin, Hamburg, Essen, Dortmund Leipzig
Sweden 379 Stockholm, Gothenburg, Malmö, Uppsala Trelleborg
Poland 299 Warsaw, Łódź, Poznań, Gdańsk Lublin
Finland 281 Helsinki, Espoon keskus, Tampere urban area, Vantaa Hanko
Denmark 260 Copenhagen, Aarhus, Odense, Aalborg Alholm
Norway 159 Oslo, Bergen, Stavanger, Kristiansand Mandal
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 46 Christchurch, Wellington, Dunedin, Invercargill Wellington
Australia 28 Melbourne, Geelong, Hobart, Ballarat Ballarat
Kazakhstan 4 Astana, Kostanay, Petropavl, Kokshetau Astana
Belgium 3 Turnhout, Knokke-Heist, Kapellen Turnhout
China 3 Daxing’anling, Tahe Town, Mohe Daxing’anling
Greenland 3 Qaqortoq, Narsaq, Nanortalik Nanortalik
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

3,361 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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