Weather Radar

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Weather radar uses pulsed microwave radiation pulses to detect various degrees and forms of precipitation including light rain, heavy rain, snow, and hailstones. In some cases, Doppler radar is also used to determine wind velocities and directions. For local and regional Doppler radar images, visit the National Weather Service Doppler Radar page.

United States Radar Weather Map

This USA (lower 48 states) weather radar map
is updated about every 30 minutes.
Click on the map for more details.