One geomagnetic storm through six quiet, moving pictures — where the lights fall on the globe, whether you can see them tonight, where they're likely, from above, how far south they reach, and how they've moved. (The why — what drives it all — lives in about.)
The auroral oval wrapped on the turning Earth — drag activity from quiet to storm and watch the ring sweep south, city by city.
→ 02 Tonight · can I see itA straight answer for your location — with the numbers, cloud and moon, and the best odds elsewhere.
→ 03 The map · whereThe northern auroral zone unrolled by longitude, brightening city by city.
→ 04 From above · whereLooking straight down at the pole — each spoke a region of the world.
→ 05 The reach · how farA curtain hanging from the pole, dropping over the cities it can be seen from.
→ 06 The record · latelyThree days of readings flowing through now into the three-day forecast — the whole arc on one line.
→Real space-weather driving a piece of generative art — no charts, no numbers, just the sky moving.
→Built on live NOAA / SWPC open data — the OVATION aurora model, the planetary Kp index, real-time solar wind, and the 3-day forecast. If the feed is ever briefly unreachable, each picture falls back to a clearly-marked illustrative pattern.