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How does WSR-88D work?

How does WSR-88D work?

The WSR-88D obtains weather information (precipitation and wind) based upon returned energy generated and received at the Radar Data Aquisition (RDA) unit (see animated diagram below). The radar emits a burst of energy (green), from a 28 foot diameter antenna inside the radome (the white, soccer ball covering).

Who makes the WSR-88D?


NEXRAD Radar at the WSR-88D Radar Operations Center.
Country of origin United States
Introduced 1988
No. built 160 in the US, some around the world
Type Weather radar

What is the wavelength of the WSR-88D?

approximately 10.7 cm
The WSR-88D’s wavelength is approximately 10.7 cm, so Rayleigh scattering occurs with targets whose diameters are less than or equal to about 7 mm or ~0.4 inch….

dBZ Rain Rate (in/hr)
60 8.00
55 4.00
52 2.50
47 1.25

Which radar is the most accurate?

AccuWeather gathers the best and most comprehensive weather data to deliver forecasts with Superior Accuracy. Forecasts are pinpointed for every location on Earth and extend further ahead than any other source.

What does WSR-88D stand for?

Weather Surveillance Radar-1988 Doppler
Radar stands for Radio, Detection, and Ranging, and has been used to detect precipitation since the 1940’s, with most of the technology coming from the military. The radar used by the NWS is called the WSR-88D, which stands for Weather Surveillance Radar-1988 Doppler (1988 is when the radar was first built).

How many WSR-88D Doppler radars are in operation?

160 WSR-88D radars
The Weather Surveillance Radar, 1988 Doppler (WSR-88D), also known as NEXRAD, is the most advanced operational weather radar in the world. The fleet of 160 WSR-88D radars operate 24/7 to support the weather warning and forecast missions of the National Weather Service, FAA and DoD.

What is the beam width of WSR-88D?

The beam width for the WSR-88D is 0.96 resulting in a beam diameter of about 2 nmi at 124 nmi from the radar (not that much).

How fast does the fastest radar update?

Radar Observations Doppler radar has two operational modes: clear air and precipitation. In clear air mode, the radar is in its most sensitive operational mode because a slow antenna rotation allows the radar to sample the atmosphere longer. Images are updated about every 10 minutes in this mode.

What radar do storm chasers use?

RadarScope, the Best Radar for Storm Chasing Out of many, RadarScope is the best radar so far. Many professional meteorologists, news reporters, and even pilots use it for storm chasing.

Is Radarscope free?

Unfortunately, Radarscope isn’t free—it costs $9.99—but it’s worth it if you’re serious about wanting to stay ahead of storms heading your way.

How far can an ATC radar see?

The accuracy of the distance measurement are not so much affected by the range, and varies from about 5 meters to 300 meters.

How do storm chasers get internet?

Laptop computer – With a cell phone, a laptop can maintain a continuous Internet connection, allowing for constantly updated weather data, including weather maps and other details that a weather radio can’t provide.