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G2Peak 17 July 2004 at 00:00 UTC

Northern Lights on 17 July 2004 (Kp 6): Where They Were Visible

Kp reached 6. At that level the edge of the auroral oval reaches about 54.5° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 50.0°. Activity stayed at storm level (Kp 5 or more) for 3 hours.

03579 G1 G3 Fri 16 Jul 00:00 UTC · Kp 1.00 Fri 16 Jul 03:00 UTC · Kp 0.67 Fri 16 Jul 06:00 UTC · Kp 1.33 Fri 16 Jul 09:00 UTC · Kp 1.33 Fri 16 Jul 12:00 UTC · Kp 2.33 Fri 16 Jul 15:00 UTC · Kp 2.00 Fri 16 Jul 18:00 UTC · Kp 2.00 Fri 16 Jul 21:00 UTC · Kp 4.33 Sat 17 Jul 00:00 UTC · Kp 6.00 Sat 17 Jul 03:00 UTC · Kp 4.00 Sat 17 Jul 06:00 UTC · Kp 4.33 Sat 17 Jul 09:00 UTC · Kp 2.33 Sat 17 Jul 12:00 UTC · Kp 2.00 Sat 17 Jul 15:00 UTC · Kp 1.00 Sat 17 Jul 18:00 UTC · Kp 1.33 Sat 17 Jul 21:00 UTC · Kp 1.67 Sun 18 Jul 00:00 UTC · Kp 1.33 Fri 16 JulSat 17 JulSun 18 Jul
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

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

CountryPlacesExamplesFurthest from the pole
United Kingdom 343 Glasgow, Manchester, Leeds, Edinburgh Manchester
United States 200 Minneapolis, Saint Paul, Fargo, Lowell Beverly
Canada 102 Winnipeg, Quebec City, Halifax, Regina Eastern Passage
Germany 56 Kiel, Lübeck, Rostock, Flensburg Norderstedt
Ireland 37 Dublin, Galway, Tallaght, Drogheda Dublin
Denmark 26 Odense, Esbjerg, Kolding, Horsens Nykøbing Falster
Poland 4 Świnoujście, Gryfice, Świdwin, Wolin Świdwin
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

2,709 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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