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

Here's your Doppler 12 and Futurecast update. Severe storms are still expected later tonight. Damaging wind is the primary threat. | KXII-TV

6.2K views · 28 reactions | 5:05 PM Friday 5/30/25...StormTracker 12 Doppler radar tracking several strong storms. no active warnings at this time but brief heavy rain gusty winds can be expected near the stronger cells ~ Justin Kiefer | WBOY - StormTracker 12 | Facebook