AuroraMeteo
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G1Peak 12 October 1999 at 12:00 UTC

Northern Lights on 12 October 1999 (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 27 hours.

03579 G1 G3 Sun 10 Oct 15:00 UTC · Kp 5.67 Sun 10 Oct 18:00 UTC · Kp 4.00 Sun 10 Oct 21:00 UTC · Kp 3.00 Mon 11 Oct 00:00 UTC · Kp 4.33 Mon 11 Oct 03:00 UTC · Kp 3.33 Mon 11 Oct 06:00 UTC · Kp 4.67 Mon 11 Oct 09:00 UTC · Kp 3.67 Mon 11 Oct 12:00 UTC · Kp 3.33 Mon 11 Oct 15:00 UTC · Kp 4.67 Mon 11 Oct 18:00 UTC · Kp 3.33 Mon 11 Oct 21:00 UTC · Kp 5.00 Tue 12 Oct 00:00 UTC · Kp 5.00 Tue 12 Oct 03:00 UTC · Kp 5.00 Tue 12 Oct 06:00 UTC · Kp 3.67 Tue 12 Oct 09:00 UTC · Kp 5.00 Tue 12 Oct 12:00 UTC · Kp 5.33 Tue 12 Oct 15:00 UTC · Kp 5.33 Tue 12 Oct 18:00 UTC · Kp 5.33 Tue 12 Oct 21:00 UTC · Kp 4.33 Wed 13 Oct 00:00 UTC · Kp 4.67 Wed 13 Oct 03:00 UTC · Kp 3.00 Wed 13 Oct 06:00 UTC · Kp 4.00 Wed 13 Oct 09:00 UTC · Kp 2.67 Wed 13 Oct 12:00 UTC · Kp 3.67 Wed 13 Oct 15:00 UTC · Kp 4.00 Wed 13 Oct 18:00 UTC · Kp 4.00 Wed 13 Oct 21:00 UTC · Kp 3.33 Thu 14 Oct 00:00 UTC · Kp 3.33 Mon 11 OctTue 12 OctWed 13 OctThu 14 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

1,476 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 372 Seattle, Milwaukee, Minneapolis, Saint Paul Centralia
Canada 360 Toronto, Montreal, Calgary, Ottawa Hamilton
United Kingdom 169 Glasgow, Edinburgh, Belfast, Newcastle upon Tyne Middlesbrough
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
New Zealand 9 Dunedin, Invercargill, Mosgiel, Wānaka Wānaka
Australia 7 Hobart, Launceston, Devonport, Burnie Burnie
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

1,898 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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