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G4Peak 30 May 2005 at 15:00 UTC

Northern Lights on 30 May 2005 (Kp 7.7): Where They Were Visible

Kp reached 7.7. At that level the edge of the auroral oval reaches about 51.2° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 46.7°. Activity stayed at storm level (Kp 5 or more) for 18 hours.

03579 G1 G3 Sun 29 May 06:00 UTC · Kp 3.00 Sun 29 May 09:00 UTC · Kp 3.00 Sun 29 May 12:00 UTC · Kp 1.33 Sun 29 May 15:00 UTC · Kp 3.00 Sun 29 May 18:00 UTC · Kp 3.00 Sun 29 May 21:00 UTC · Kp 5.67 Mon 30 May 00:00 UTC · Kp 4.00 Mon 30 May 03:00 UTC · Kp 3.33 Mon 30 May 06:00 UTC · Kp 6.33 Mon 30 May 09:00 UTC · Kp 6.33 Mon 30 May 12:00 UTC · Kp 7.33 Mon 30 May 15:00 UTC · Kp 7.67 Mon 30 May 18:00 UTC · Kp 6.67 Mon 30 May 21:00 UTC · Kp 4.67 Tue 31 May 00:00 UTC · Kp 3.33 Tue 31 May 03:00 UTC · Kp 3.67 Tue 31 May 06:00 UTC · Kp 2.67 Tue 31 May 09:00 UTC · Kp 2.67 Tue 31 May 12:00 UTC · Kp 3.33 Tue 31 May 15:00 UTC · Kp 2.00 Tue 31 May 18:00 UTC · Kp 2.00 Tue 31 May 21:00 UTC · Kp 2.67 Mon 30 MayTue 31 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

4,114 towns on our list had enough activity while it was dark there. Cloud cover is not included.

CountryPlacesExamplesFurthest from the pole
United States 2,785 Chicago, Seattle, Boston, Portland Pittsburgh
Canada 860 Toronto, Montreal, Calgary, Ottawa Yarmouth
Sweden 208 Stockholm, Gothenburg, Linköping, Örebro Halmstad
Estonia 57 Tallinn, Tartu, Pärnu, Kohtla-Järve Võru
Latvia 49 Riga, Jelgava, Jūrmala, Ventspils Jelgava
New Zealand 46 Christchurch, Wellington, Dunedin, Invercargill Wellington
Denmark 32 Aalborg, Hjørring, Nørresundby, Frederikshavn Skive
Australia 28 Melbourne, Geelong, Hobart, Ballarat Ballarat
United Kingdom 24 Dundee, Perth, Arbroath, Isle of Lewis Dunblane
Norway 18 Kristiansand, Arendal, Grimstad, Vennesla Mandal
Kazakhstan 4 Astana, Kostanay, Petropavl, Kokshetau Astana
China 3 Daxing’anling, Tahe Town, Mohe Daxing’anling
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

3,781 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.

← 29 May 2005 · 4 June 2005 →