In a striking display of nature’s power, the western skies of Australia transformed into a dramatic blood-red spectacle as Tropical Cyclone Narelle approached the continent. The ominous hue prompted some witnesses to describe the scene as “apocalyptic.”

Shark Bay Caravan Park captured the unusual atmosphere in a Facebook post on Friday, noting, “It’s incredibly eerie outside, and everything is covered in dust. Not a lot of wind yet.” This visual phenomenon left many residents in awe as the cyclone’s presence loomed.

Elsewhere in the region, the sky took on a distinctive orange glow, presenting a less alarming but equally unusual sight. This shift in color was attributed to dust clouds stirred up by the cyclone’s forceful winds.

According to the FOX Forecast Center, the striking red hue results from the way different wavelengths of light scatter in the atmosphere. During sunrise or sunset, light travels through denser layers of the atmosphere. Shorter wavelengths, like blue, scatter more easily, leaving the longer red, orange, and pink wavelengths to dominate the sky.

Colors like blue have shorter wavelengths than red, orange and pink light, and when the sun rises or sets, the light it casts passes through thicker portions of the atmosphere.

This causes the blue wavelengths to scatter more readily, while the longer red and pink ones appear more prominent in the sky.

Some reports said strong winds kicked iron-rich soil into the atmosphere, which, combined with the diffused sunlight, created a sort of filter that muted most color wavelengths except red.

The park shared a follow-up video on Facebook Sunday showing the skies had returned to their usual azure.

“What a difference 48 hours makes. We are still clearing dust from everywhere,” they wrote.