AuroraMeteo
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G1Peak 23 October 1991 at 21:00 UTC

Northern Lights on 23 October 1991 (Kp 5.3): Where They Were Visible

Kp reached 5.3. At that level the edge of the auroral oval reaches about 55.8° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 51.3°. Activity stayed at storm level (Kp 5 or more) for 9 hours.

03579 G1 G3 Tue 22 Oct 18:00 UTC · Kp 3.00 Tue 22 Oct 21:00 UTC · Kp 2.00 Wed 23 Oct 00:00 UTC · Kp 3.00 Wed 23 Oct 03:00 UTC · Kp 3.00 Wed 23 Oct 06:00 UTC · Kp 3.33 Wed 23 Oct 09:00 UTC · Kp 2.67 Wed 23 Oct 12:00 UTC · Kp 1.33 Wed 23 Oct 15:00 UTC · Kp 2.67 Wed 23 Oct 18:00 UTC · Kp 4.67 Wed 23 Oct 21:00 UTC · Kp 5.33 Thu 24 Oct 00:00 UTC · Kp 4.67 Thu 24 Oct 03:00 UTC · Kp 3.67 Thu 24 Oct 06:00 UTC · Kp 3.67 Thu 24 Oct 09:00 UTC · Kp 3.33 Thu 24 Oct 12:00 UTC · Kp 3.00 Thu 24 Oct 15:00 UTC · Kp 3.33 Thu 24 Oct 18:00 UTC · Kp 3.67 Thu 24 Oct 21:00 UTC · Kp 4.00 Fri 25 Oct 00:00 UTC · Kp 4.67 Wed 23 OctThu 24 OctFri 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

1,127 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
Canada 240 Montreal, Calgary, Ottawa, Edmonton Sydney Mines
United Kingdom 169 Glasgow, Edinburgh, Belfast, Newcastle upon Tyne Middlesbrough
United States 159 Minneapolis, Saint Paul, Anchorage, Fargo Bar Harbor
Sweden 148 Stockholm, Gothenburg, Malmö, Uppsala Trelleborg
Finland 123 Helsinki, Espoon keskus, Tampere urban area, Vantaa Raseborg
Denmark 93 Copenhagen, Aarhus, Odense, Aalborg Nakskov
Norway 77 Oslo, Bergen, Trondheim, Stavanger Mandal
Latvia 39 Riga, Daugavpils, Liepāja, Jelgava Daugavpils
Lithuania 25 Kaunas, Klaipeda City Municipality, Šiauliai, Panevėžys Kaunas
Estonia 21 Tallinn, Tartu, Narva, Pärnu Võru
Iceland 18 Reykjavík, Kópavogur, Hafnarfjörður, Reykjanesbær Vík í Mýrdal
Greenland 6 Nuuk, Sisimiut, Ilulissat, Qaqortoq Qaqortoq
Faroe Islands 4 Tórshavn, Klaksvík, Fuglafjørður, Miðvágur Tórshavn
Ireland 2 Letterkenny, Sligo Sligo
Germany 1 Westerland Westerland
Kazakhstan 1 Petropavl Petropavl
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

1,794 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.

← 21 October 1991 · 25 October 1991 →