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G2Peak 16 May 2005 at 03:00 UTC

Northern Lights on 16 May 2005 (Kp 6.3): Where They Were Visible

Kp reached 6.3. At that level the edge of the auroral oval reaches about 53.8° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 49.3°. Activity stayed at storm level (Kp 5 or more) for 18 hours.

03579 G1 G3 Sat 14 May 18:00 UTC · Kp 2.33 Sat 14 May 21:00 UTC · Kp 0.67 Sun 15 May 00:00 UTC · Kp 5.67 Sun 15 May 03:00 UTC · Kp 5.67 Sun 15 May 06:00 UTC · Kp 8.33 Sun 15 May 09:00 UTC · Kp 7.67 Sun 15 May 12:00 UTC · Kp 4.00 Sun 15 May 15:00 UTC · Kp 4.00 Sun 15 May 18:00 UTC · Kp 5.00 Sun 15 May 21:00 UTC · Kp 5.00 Mon 16 May 00:00 UTC · Kp 4.00 Mon 16 May 03:00 UTC · Kp 6.33 Mon 16 May 06:00 UTC · Kp 6.00 Mon 16 May 09:00 UTC · Kp 4.00 Mon 16 May 12:00 UTC · Kp 5.00 Mon 16 May 15:00 UTC · Kp 4.67 Mon 16 May 18:00 UTC · Kp 1.67 Mon 16 May 21:00 UTC · Kp 2.33 Tue 17 May 00:00 UTC · Kp 3.33 Tue 17 May 03:00 UTC · Kp 4.33 Tue 17 May 06:00 UTC · Kp 3.67 Tue 17 May 09:00 UTC · Kp 2.33 Tue 17 May 12:00 UTC · Kp 2.00 Tue 17 May 15:00 UTC · Kp 3.67 Sun 15 MayMon 16 MayTue 17 May
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

5,253 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 2,817 Chicago, Seattle, Boston, Portland Pittsburgh
Canada 935 Toronto, Montreal, Calgary, Ottawa Yarmouth
Sweden 373 Stockholm, Gothenburg, Malmö, Uppsala Oxie
United Kingdom 278 Glasgow, Edinburgh, Aberdeen, Dundee Ashington
Finland 265 Helsinki, Espoon keskus, Tampere urban area, Vantaa Hanko
Denmark 204 Copenhagen, Aarhus, Aalborg, Frederiksberg Esbjerg
Norway 161 Oslo, Bergen, Stavanger, Kristiansand Mandal
Latvia 76 Riga, Daugavpils, Liepāja, Jelgava Daugavpils
Estonia 65 Tallinn, Tartu, Narva, Pärnu Võru
New Zealand 37 Christchurch, Dunedin, Invercargill, Rolleston Christchurch
Lithuania 29 Klaipeda City Municipality, Šiauliai, Panevėžys, Mažeikiai Utena
Australia 9 Hobart, Launceston, New Norfolk, Bellerive Launceston
Ireland 3 Letterkenny, Buncrana, Gweedore Letterkenny
Greenland 1 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

3,519 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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