Event details

Aurora Watch Window

Aurora can appear as northern sky glow, pillars, or moving curtains during geomagnetic activity.

When to look: Late night if geomagnetic activity rises

Where visible: Northern tier states

How to watch: No telescope required. A phone or camera can reveal color before your eyes do.

What can ruin visibility

Check these before travel

Clouds, city glow, weak geomagnetic activity, and a blocked northern horizon can ruin visibility.

  • Check geomagnetic activity
  • Find a clear northern horizon
  • Avoid city light domes
  • Recheck clouds before driving

Event timing source

Date guard and local forecast handoff

Calendar status: Date to confirm

Date guard: Past event windows are not promoted as current events on the event hub or astronomy calendar.

Forecast dataset: 2026-07-13

Use this event page for the sky-window baseline, then use the map or tonight forecast for clouds, moonlight, darkness, and the best local viewing window.

Best northern starting locations

Prioritize northern latitude, low clouds, and an open northern horizon

North Region North Dakota

State: North Dakota

Score: 91 (Great)

Best window: Tuesday 12:00 AM-3:00 AM CDT

Main factor: Northern horizon and cloud risk

North Region Pennsylvania

State: Pennsylvania

Score: 90 (Great)

Best window: Monday 11:00 PM-1:00 AM EDT

Main factor: Northern horizon and cloud risk

North Region Wisconsin

State: Wisconsin

Score: 90 (Great)

Best window: Monday 11:00 PM-2:00 AM CDT

Main factor: Northern horizon and cloud risk

North Region Wyoming

State: Wyoming

Score: 90 (Great)

Best window: Monday 11:00 PM-2:00 AM MDT

Main factor: Northern horizon and cloud risk

Check activity and northern horizon

Simple field check

Aurora trips depend on geomagnetic activity and cloud cover. Confirm activity is elevated and choose a site with a clear northern horizon before driving.

Watch after dark when activity is elevated and clouds are low.

Recheck local sky conditions before long travel, especially if the event depends on a short viewing window.