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G1Peak 24 October 1990 at 00:00 UTC

Northern Lights on 24 October 1990 (Kp 5): Where They Were Visible

Kp reached 5. At that level the edge of the auroral oval reaches about 56.5° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 52.0°. Activity stayed at storm level (Kp 5 or more) for 3 hours.

03579 G1 G3 Tue 23 Oct 00:00 UTC · Kp 1.33 Tue 23 Oct 03:00 UTC · Kp 1.33 Tue 23 Oct 06:00 UTC · Kp 1.67 Tue 23 Oct 09:00 UTC · Kp 1.67 Tue 23 Oct 12:00 UTC · Kp 1.33 Tue 23 Oct 15:00 UTC · Kp 1.33 Tue 23 Oct 18:00 UTC · Kp 3.33 Tue 23 Oct 21:00 UTC · Kp 4.00 Wed 24 Oct 00:00 UTC · Kp 5.00 Wed 24 Oct 03:00 UTC · Kp 4.33 Wed 24 Oct 06:00 UTC · Kp 4.00 Wed 24 Oct 09:00 UTC · Kp 3.67 Wed 24 Oct 12:00 UTC · Kp 4.00 Wed 24 Oct 15:00 UTC · Kp 3.33 Wed 24 Oct 18:00 UTC · Kp 3.33 Wed 24 Oct 21:00 UTC · Kp 1.67 Thu 25 Oct 00:00 UTC · Kp 3.33 Tue 23 OctWed 24 OctThu 25 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

1,259 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
Canada 352 Toronto, Montreal, Calgary, Ottawa Hamilton
United States 276 Milwaukee, Minneapolis, Saint Paul, Anchorage Racine
Sweden 145 Stockholm, Gothenburg, Malmö, Uppsala Oxie
Finland 123 Helsinki, Espoon keskus, Tampere urban area, Vantaa Raseborg
United Kingdom 103 Glasgow, Edinburgh, Aberdeen, Dundee Ashington
Norway 77 Oslo, Bergen, Trondheim, Stavanger Mandal
Denmark 75 Copenhagen, Aarhus, Aalborg, Frederiksberg Esbjerg
Latvia 39 Riga, Daugavpils, Liepāja, Jelgava Daugavpils
Estonia 21 Tallinn, Tartu, Narva, Pärnu Võru
Iceland 18 Reykjavík, Kópavogur, Hafnarfjörður, Reykjanesbær Vík í Mýrdal
Lithuania 18 Klaipeda City Municipality, Šiauliai, Panevėžys, Mažeikiai Utena
Greenland 6 Nuuk, Sisimiut, Ilulissat, Qaqortoq Qaqortoq
Faroe Islands 4 Tórshavn, Klaksvík, Fuglafjørður, Miðvágur Tórshavn
Ireland 1 Letterkenny Letterkenny
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

1,831 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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