In Western Australia, specifically over Shark Bay, the skies turned a striking red color as Tropical Cyclone Narelle approached. This atmospheric event, occurring before the cyclone's arrival, was due to the scattering of sunlight by particles in the atmosphere, a phenomenon amplified by weather systems like cyclones. Dust, salt, and other aerosols in the air selectively scatter light wavelengths, causing the sky to appear red, especially during sunrise and sunset. The intensity of the red color depends on the concentration and size of these particles and the sun's angle.