What effect does severe weather have on ground wave propagation?

Severe weather typically degrades ground wave propagation due to several factors associated with atmospheric conditions. Ground wave propagation relies on the interaction of radio waves with the ground and the atmosphere. Conditions such as heavy rainfall, thunderstorms, ice storms, or dense fog can introduce additional noise and absorption losses.

Rain, for example, can cause attenuation of radio signals, especially at higher frequencies, which may not penetrate well through moisture-laden air. Other severe weather conditions can disrupt the stability of the ionosphere, affecting how signals travel along the ground. Furthermore, strong winds can lead to fluctuations in the signal due to the movement of the terrain and vegetation.

Understanding these effects is important for effective communication, as operators must be aware that during severe weather, the reliability and range of their communication systems may be significantly reduced. Therefore, recognizing that ground wave propagation is impaired during severe weather helps in planning and making necessary adjustments for reliable communication.