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G2Peak 16 September 2003 at 12:00 UTC

Northern Lights on 16 September 2003 (Kp 5.7): Where They Were Visible

Kp reached 5.7. At that level the edge of the auroral oval reaches about 55.2° magnetic latitude, so the aurora could be seen low on the horizon down to roughly 50.7°. Activity stayed at storm level (Kp 5 or more) for 3 hours.

03579 G1 G3 Mon 15 Sept 12:00 UTC · Kp 0.33 Mon 15 Sept 15:00 UTC · Kp 0.67 Mon 15 Sept 18:00 UTC · Kp 2.00 Mon 15 Sept 21:00 UTC · Kp 3.00 Tue 16 Sept 00:00 UTC · Kp 4.67 Tue 16 Sept 03:00 UTC · Kp 4.00 Tue 16 Sept 06:00 UTC · Kp 4.33 Tue 16 Sept 09:00 UTC · Kp 4.00 Tue 16 Sept 12:00 UTC · Kp 5.67 Tue 16 Sept 15:00 UTC · Kp 4.33 Tue 16 Sept 18:00 UTC · Kp 4.33 Tue 16 Sept 21:00 UTC · Kp 3.00 Wed 17 Sept 00:00 UTC · Kp 5.33 Wed 17 Sept 03:00 UTC · Kp 5.33 Wed 17 Sept 06:00 UTC · Kp 5.00 Wed 17 Sept 09:00 UTC · Kp 6.33 Wed 17 Sept 12:00 UTC · Kp 7.00 Tue 16 SeptWed 17 Sept
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

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

CountryPlacesExamplesFurthest from the pole
New Zealand 9 Dunedin, Invercargill, Mosgiel, Wānaka Wānaka
United States 9 Anchorage, Fairbanks, Eagle River, Badger Anchorage
Australia 7 Hobart, Launceston, Devonport, Burnie Burnie
Based on each place's Kp threshold (terrain included) and the Sun's position during each 3-hour Kp block.

Only in photos

93 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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