CaseLight1998

Grass Valley, CA, USA

Name: UFO sighting — Grass Valley, CA, USA
Start: 1998-07-31
Location: Grass Valley, CA, USA

Saw a light in sky. It did a strange turn. Heard a slow hum, not like airplane. Hum lasted for over half an hour. Light reappeared

Report quality: Moderate55/100

This score reflects report-quality signals on file — how complete, corroborated, and precisely located the report is — not a claim about whether the sighting was a real craft.

Duration parsed: 3600s, a plausible sighting length
Detailed witness text (130 characters)
Location geocoded exactly
No other reports from this city within 3 days

When: 1998-07-31
Where: Grass Valley, CA, USA
Shape: Light
Duration: 1 hour
Geo: 39.219, -121.061 · exact
Slug: light-over-grass-valley-ca-1998-be9a47

In context

This is one of 34 reports logged in Grass Valley, CA.
This case is one of 232 California reports filed in 1998.
Light craft made up 16.2% of 1990s reports, vs 20.3% across the whole archive.

Report

Full narrative lands with dossier import for famous cases, or the NUFORC free-text summary above for standard reports. This shell is SSR-ready: one D1 row (including connections_json) per page.