Guiyang forest destruction
Early on 1 December 1994 night guards near Guiyang reported fireballs, and dawn showed large tracts of pine snapped at the same height, with a truck factory damaged.
1994 CE · 26.68, 106.90 · status: disputed
The account
The Duxi forest farm became China's most famous 'UFO traces' case; in 2005 Guiyang even announced a UFO research base to study it.
The sceptical view
Meteorologists proposed a downburst or tornado-like wind, which snaps trees at similar heights; ball lightning was also suggested.
The researched reading
A real strip of devastated forest with fireballs seen at night. A downburst or tornado, with lightning or electrical flashes, accounts for the pattern far better than a craft.
| Explanation | Weight | Why |
|---|---|---|
| A known natural phenomenon | 50% | Pines snapped at similar heights across long strips, a moved railway car and a damaged factory are typical of a downburst or tornado in a convective storm; such winds produce narrow, sharply bounded swathes of damage and roaring noise. |
| A poorly understood natural phenomenon | 15% | Glowing balls reported by the guards may have been lightning, power-line flashes or the rarely documented ball lightning that sometimes accompanies severe storms. |
| Something known, misidentified | 10% | Lights could have been power-line arcing as trees fell, or factory and rail lights seen in the storm. |
| Undetermined | 10% | The share a generic explanation had beyond what has been shown for this case: it fits many cases like this one, but has not been demonstrated for this one. |
| Genuinely anomalous | 6% | The damage is real and was never formally explained in published meteorological analyses, which leaves a small gap, but its pattern looks like wind. |
| Perception, memory or mind | 5% | Night guards woken by a violent storm describe fireballs and roars, and the UFO framing came later in the press. |
| A hoax or fabrication | 2% | Hectares of snapped trees cannot be faked. |
| Secret human technology | 2% | No known military activity or aircraft accident fits the damage. |
Official position: Local experts at the time attributed the damage to violent airflow; the case was later promoted locally as a UFO site.