AuroraMeteo
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G2Peak 12 July 1991 at 09:00 UTC

Northern Lights on 12 July 1991 (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 6 hours.

03579 G1 G3 Thu 11 Jul 09:00 UTC · Kp 5.00 Thu 11 Jul 12:00 UTC · Kp 3.67 Thu 11 Jul 15:00 UTC · Kp 3.33 Thu 11 Jul 18:00 UTC · Kp 2.33 Thu 11 Jul 21:00 UTC · Kp 3.33 Fri 12 Jul 00:00 UTC · Kp 3.00 Fri 12 Jul 03:00 UTC · Kp 3.00 Fri 12 Jul 06:00 UTC · Kp 3.33 Fri 12 Jul 09:00 UTC · Kp 5.67 Fri 12 Jul 12:00 UTC · Kp 4.67 Fri 12 Jul 15:00 UTC · Kp 3.67 Fri 12 Jul 18:00 UTC · Kp 3.33 Fri 12 Jul 21:00 UTC · Kp 4.00 Sat 13 Jul 00:00 UTC · Kp 4.67 Sat 13 Jul 03:00 UTC · Kp 5.00 Sat 13 Jul 06:00 UTC · Kp 6.67 Sat 13 Jul 09:00 UTC · Kp 7.00 Sat 13 Jul 12:00 UTC · Kp 8.00 Fri 12 JulSat 13 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

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

CountryPlacesExamplesFurthest from the pole
United States 127 Seattle, Tri-Cities, Spokane, Tacoma Pendleton
Canada 66 Vancouver, Surrey, Victoria, Burnaby Sooke
New Zealand 9 Dunedin, Invercargill, Mosgiel, Wānaka Wānaka
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

374 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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