G1Peak 13 April 2005 at 15:00 UTC

Northern Lights on 13 April 2005 (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 6 hours.

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

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

Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.
Country	Places	Examples	Furthest from the pole
Sweden	125	Stockholm, Gothenburg, Uppsala, Linköping	Halmstad
Finland	123	Helsinki, Espoon keskus, Tampere urban area, Vantaa	Raseborg
Norway	77	Oslo, Bergen, Trondheim, Stavanger	Mandal
Latvia	27	Riga, Jelgava, Jūrmala, Ventspils	Jelgava
United Kingdom	24	Aberdeen, Dundee, Inverness, Perth	St Andrews
Canada	21	Greater Sudbury, Saguenay, Sault Ste. Marie, Rimouski	Greater Sudbury
Estonia	21	Tallinn, Tartu, Narva, Pärnu	Võru
Iceland	18	Reykjavík, Kópavogur, Hafnarfjörður, Reykjanesbær	Vík í Mýrdal
Denmark	8	Aalborg, Hjørring, Nørresundby, Frederikshavn	Skive
New Zealand	7	Dunedin, Invercargill, Mosgiel, Gore	Oamaru
Greenland	6	Nuuk, Sisimiut, Ilulissat, Qaqortoq	Qaqortoq
Australia	5	Hobart, Launceston, Bruny Island (Alonnah), Southport / Cockle Creek	Launceston
Faroe Islands	4	Tórshavn, Klaksvík, Fuglafjørður, Miðvágur	Tórshavn
United States	3	Marquette, Sault Ste. Marie, Copper Harbor	Sault Ste. Marie

Only in photos

980 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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