AuroraMeteo
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G4Peak 25 July 2004 at 15:00 UTC

Northern Lights on 25 July 2004 (Kp 8): Where They Were Visible

Kp reached 8. At that level the edge of the auroral oval reaches about 50.5° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 46.0°. Activity stayed at storm level (Kp 5 or more) for 36 hours.

03579 G1 G3 Fri 23 Jul 12:00 UTC · Kp 5.33 Fri 23 Jul 15:00 UTC · Kp 5.67 Fri 23 Jul 18:00 UTC · Kp 3.00 Fri 23 Jul 21:00 UTC · Kp 1.33 Sat 24 Jul 00:00 UTC · Kp 2.67 Sat 24 Jul 03:00 UTC · Kp 2.67 Sat 24 Jul 06:00 UTC · Kp 4.33 Sat 24 Jul 09:00 UTC · Kp 3.00 Sat 24 Jul 12:00 UTC · Kp 6.00 Sat 24 Jul 15:00 UTC · Kp 5.00 Sat 24 Jul 18:00 UTC · Kp 4.00 Sat 24 Jul 21:00 UTC · Kp 5.67 Sun 25 Jul 00:00 UTC · Kp 7.00 Sun 25 Jul 03:00 UTC · Kp 7.33 Sun 25 Jul 06:00 UTC · Kp 6.33 Sun 25 Jul 09:00 UTC · Kp 7.67 Sun 25 Jul 12:00 UTC · Kp 7.33 Sun 25 Jul 15:00 UTC · Kp 8.00 Sun 25 Jul 18:00 UTC · Kp 7.33 Sun 25 Jul 21:00 UTC · Kp 7.33 Mon 26 Jul 00:00 UTC · Kp 7.33 Mon 26 Jul 03:00 UTC · Kp 3.67 Mon 26 Jul 06:00 UTC · Kp 1.67 Mon 26 Jul 09:00 UTC · Kp 2.00 Mon 26 Jul 12:00 UTC · Kp 1.33 Mon 26 Jul 15:00 UTC · Kp 2.00 Mon 26 Jul 18:00 UTC · Kp 3.67 Mon 26 Jul 21:00 UTC · Kp 7.33 Tue 27 Jul 00:00 UTC · Kp 8.33 Sat 24 JulSun 25 JulMon 26 JulTue 27 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

3,901 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 1,692 New York City, Brooklyn, Chicago, Queens Lexington
United Kingdom 657 London, Birmingham, Glasgow, Manchester Basingstoke
Canada 402 Toronto, Montreal, Calgary, Ottawa Eastern Passage
Germany 261 Berlin, Hamburg, Essen, Dortmund Leipzig
Poland 196 Warsaw, Łódź, Poznań, Gdańsk Lublin
Netherlands 138 Rotterdam, Amsterdam, The Hague, Utrecht Venlo
Sweden 133 Stockholm, Gothenburg, Malmö, Uppsala Trelleborg
Denmark 94 Copenhagen, Aarhus, Odense, Aalborg Nykøbing Falster
Finland 73 Helsinki, Espoon keskus, Tampere urban area, Vantaa Raseborg
Ireland 55 Dublin, Cork, Limerick, Galway Cork
Norway 49 Oslo, Bergen, Stavanger, Kristiansand Mandal
Latvia 39 Riga, Daugavpils, Liepāja, Jelgava Daugavpils
Lithuania 31 Vilnius, Kaunas, Klaipeda City Municipality, Šiauliai Druskininkai
New Zealand 29 Christchurch, Wellington, Dunedin, Lower Hutt Palmerston North
Estonia 21 Tallinn, Tartu, Narva, Pärnu Võru
Australia 20 Melbourne, Geelong, Hobart, Ballarat Wodonga
China 4 Daxing’anling, Genhe, Tahe Town, Mohe Genhe
Kazakhstan 4 Astana, Kostanay, Petropavl, Kokshetau Astana
Belgium 3 Turnhout, Knokke-Heist, Kapellen Turnhout
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

2,504 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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