Aurora is visible from Iowa only during strong geomagnetic storms. In central Iowa the geomagnetic latitude is about 51°, so the northern lights usually need a Kp index of about 6.0 or higher to appear low on the northern horizon; the north of the state (around Hawkeye Point) needs about Kp 5.5.
Kp needed (center)
Kp 6.0
geomag. lat 51°
Kp needed (north)
Kp 5.5
Hawkeye Point
Kp needed (south)
Kp 6.5
Waubonsie State Park
Kp needed in Iowa cities
| City | Geomagnetic lat. | Kp needed | City sky |
|---|---|---|---|
| Des Moines | 50.1° | Kp 6.0 | 7 |
| Cedar Rapids | 50.6° | Kp 6.0 | 7 |
| Davenport | 50.2° | Kp 6.0 | 8 |
| Sioux City | 50.8° | Kp 6.0 | 7 |
| Iowa City | 50.3° | Kp 6.0 | 7 |
| Waterloo | 51.1° | Kp 5.5 | 7 |
| Ames | 50.5° | Kp 6.0 | 7 |
| West Des Moines | 50.1° | Kp 6.0 | 8 |
| Council Bluffs | 49.6° | Kp 6.5 | 8 |
| Dubuque | 51.2° | Kp 5.5 | 7 |
| Ankeny | 50.2° | Kp 6.0 | 7 |
| Urbandale | 50.1° | Kp 6.0 | 8 |
| Cedar Falls | 51.1° | Kp 5.5 | 7 |
| Marion | 50.7° | Kp 6.0 | 7 |
| Bettendorf | 50.2° | Kp 6.0 | 8 |
Approximate Kp for aurora low on the northern horizon (camera-visible). Higher Kp lets it climb higher and show color to the eye.
Dark, northern photo locations in Iowa
| Location | Type | County | Est. Bortle |
|---|---|---|---|
| Black Hawk State Park | State Park | Sac County | 2 |
| Chicken Ridge Scenic Overlook Park | Scenic Viewpoint | Clayton County | 2 |
| Hill Little Sioux Overlook | Scenic Viewpoint | O'Brien County | 2 |
| Backbone State Park | State Park | Delaware County | 2 |
| Cedar Rock State Park | State Park | Buchanan County | 3 |
| Bellevue State Park | State Park | Jackson County | 3 |
| Dolliver Memorial State Park | State Park | Webster County | 3 |
| Lewis and Clark State Park | State Park | Monona County | 3 |
| Pikes Peak State Park | State Park | Clayton County | 3 |
| Pilot Knob State Park | State Park | Winnebago County | 3 |
| Littleport | Ghost Town | Clayton County | 2 |
| Driftless Area National Wildlife Refuge | National Wildlife Refuge | Clayton County | 2 |
How to photograph the northern lights
- Watch the live Kp forecast above and NOAA's 30-minute aurora forecast; storms often peak between 10 p.m. and 2 a.m.
- Find an unobstructed view to the north — a lake, open field or ridge — away from town lights.
- Start at ISO 1600–3200, f/2.8 or faster, 5–15 seconds; shorter exposures keep fast-moving curtains sharp.
- Your camera sees aurora as green or red long before your eyes do — take test shots whenever Kp is near the threshold.
- Moonlight lights the foreground but washes out faint aurora; strong storms are still worth shooting under a bright moon.
FAQ
Can you see the northern lights in Iowa?
Yes, only during strong geomagnetic storms. Central Iowa usually needs about Kp 6.0; the north about Kp 5.5.
What Kp index do I need?
Roughly Kp 6.0+ for central Iowa. Kp is a 0–9 scale of geomagnetic activity; each step moves the aurora's southern edge a few degrees of latitude.
Where is the best place to see the aurora in Iowa?
Dark sites with a clear northern view, such as Black Hawk State Park, Chicken Ridge Scenic Overlook Park, Hill Little Sioux Overlook.