Abstract: In some implementations, a weather sensing device may include an optical sensor having an optical transmitter and an optical receiver disposed within a housing to sense atmospheric visibility. In addition, the device may include a first plate disposed on the housing in front of the optical transmitter and having a first aperture. The device may include a second plate disposed on the housing in front of the optical receiver and having a second aperture, where the first plate and second plate are arranged such that one of the plates is mounted on the housing above the other one of the plates edgewise in a vertical dimension. Moreover, the device may include a three dimensional corrugated structure disposed between the first and second apertures to reduce or eliminate optical coupling between the optical transmitter and the optical receiver.

Abstract: A modular weather sensing apparatus is disclosed that includes a cap module, at least one middle module, and a base module, each stacked adjacent to one another to form a sealed and integrated weather sensor assembly. The modules may be configured for detachable interconnection via one or more ring mechanisms that provide both mechanical coupling and electrical connectivity, enabling the assembly to provide power and facilitate data transfer among the modules. This architecture may allow independent sensor modules to be removed, swapped, reordered, or added according to desired configurations, enhancing versatility and ease of maintenance in weather parameter detection.