Experts at the local meteorology centre said sand from neighboring Mongolia was to blame for this unusual natural phenomenon. Before it arrived in Maritime, the cyclone passed Mongolia, where sand storms had been raging in the desert.
Reminds me of one of the few occasions it snowed in my home town of Bridgwater, England. When I got home from my walk in the snow, my socks had turned pink. Clearly also the result of Mongolian cyclones.