A pale moonbow arcing through mist below Cumberland Falls at night

Cumberland Falls Moonbow LiveSaturday, June 27

TOO EARLY TO CALL

5 live/model sources fresh

Estimated Moonbow Chance0%

Physical score 0/100

Best window: No viable window
Arrive by: Do not make the trip
Forecast confidence: LOW 44/100

The astronomy can be planned now, but reliable weather inputs are not available yet.

The Moon is 96% illuminated.
Primary-bow geometry misses the visible mist field.
Sky is not yet dark enough.
Weather and river conditions cannot override a failed physical Moon gate.

USGS 3DEP cached horizonnot live

USGS station 03404500updated 69 min ago

NWS forecast grid JKL 28,14updated 68 min ago

NOAA HRRR 3 km via Open-Meteoupdated now

Photo: Design219 / Wikimedia Commons · CC BY-SA 4.0

Interactive moonbow diorama

See why this time works

Scrub the evening, then tap a feature to understand the geometry.

Viewing time11:30 PM

Primary-bow geometry misses the visible mist fieldScrub the timeline to see what changes.

Moonbow zone

A primary moonbow appears roughly 40–42° from the anti-lunar point. The brighter this arc appears here, the better the modeled bow-to-mist alignment.

Explore the night5:00 PM → 6:00 AM

Moon altitude24.1°

Bow/mist error22.3°

Mist placement86/100

Cloud transmission16/100

Physical score0/100

This is an explanatory diorama, not a literal camera view. The engine itself uses topocentric Moon position, the 40–42° primary-bow geometry, the cached local skyline and a modeled mist volume at five-minute resolution.

Five-minute engine

Tonight timeline

Every interval is stopped by at least one physical or safety gate.

Checking the six conditions…

See why this time works

Tonight timeline

Moon + geometry

Moonlight path

River + mist

Why tonight

Falls Overlook

Forecast confidence

Next moonbow windows

Did you see the moonbow?