Doppler Effect - Full explanation The Doppler Effect is the change in the frequency or wavelength of a wave as observed by someone moving relative to the source of the wave. In Simple Terms: When a source of sound (or light) moves towards you, the waves are compressed, you hear a higher pitch (higher frequency). When the source moves away, the waves are stretched, you hear a lower pitch (lower frequency). Common Example: Imagine an ambulance driving past you: • As it approaches, the siren sounds

Doppler Radar 1:45 PM// October 28th, 2025. Light to moderate rain has spread across the whole state this afternoon. Over time southwest Arkansas should clear out but north & central will likely see periods of rain through early tomorrow afternoon. Up to 1" - 2" inches is possible over parts of west-central, central, & eastern Arkansas through tomorrow. There has been talk of possible snow or sleet mixing with the rain tomorrow morning in northwest Arkansas but honestly this is just alot of nois