159 in the US, Puerto Rico and Guam plus an additional 3 WSR-88Ds, one in Japan and two in South Korea that are not included in the network
Type
Weather radar
Frequency
2,700 to 3,000 MHz (S band)
PRF
320 to 1,300 Hz (according to VCP)
Beamwidth
0.96° with 2.7 GHz 0.88° with 3.0 GHz
Pulsewidth
1.57 to 4.57 μs (according to VCP)
RPM
3
Range
460 km for reflectivity 230 km for Doppler velocity
Diameter
8.54 m (28.0 ft)
Azimuth
0 to 360º
Elevation
-1° to +20° (operations) up to +60° (test)
Power
750 KW
Other Names
WSR-88D
NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS), an agency of the National Oceanic and Atmospheric Administration (NOAA) within the United States Department of Commerce, the Federal Aviation Administration (FAA) within the Department of Transportation, and the U.S. Air Force within the Department of Defense. Its technical name is WSR-88D (Weather Surveillance Radar, 1988, Doppler).
NEXRAD detects precipitation and atmospheric movement or wind. It returns data which when processed can be displayed in a mosaic map which shows patterns of precipitation and its movement. The radar system operates in two basic modes, selectable by the operator – a slow-scanning clear-air mode for analyzing air movements when there is little or no activity in the area, and a precipitation mode, with a faster scan for tracking active weather. NEXRAD has an increased emphasis on automation, including the use of algorithms and automated volume scans.
NEXRAD or Nexrad (Next-Generation Radar) is a network of 159 high-resolution S-band Doppler weather radars operated by the National Weather Service (NWS)...
that, the resolution is close to that of the NEXRAD. However, since August 2008, oversampling on NEXRAD has increased its resolution in lower elevations...
States, the construction of a network consisting of 10 cm radars, called NEXRAD or WSR-88D (Weather Surveillance Radar 1988 Doppler), was started in 1988...
contain hook echoes. The use of Doppler weather radar systems, such as NEXRAD, allows for the detection of strong, low-level mesocyclones that produce...
removed in 2016. NOAA and the FAA plan to eventually decommission their NEXRAD, TDWR and ASR radars in favor of several hundred phased array radars conceptually...
The last NEXRAD radar scans of Typhoon Mawar before the radar went out. The NEXRAD velocity (right side) had a max wind speed of 193 mph (311 km/h) about...
Depicts radar imagery (reflectivity) taken by the National Weather Service NEXRAD radar, KTLX, in Central Oklahoma during the May 1999 tornado outbreak. This...
lasted for three miles and ended up in Bolingbrook. The development of NEXRAD (Next Generation Radar) has contributed greatly to the ability of meteorologists...
of meteorological observation, and contributed to the development of the NEXRAD (WSR-88D). NSSL has a partnership with the Cooperative Institute for Severe...
emergencies were issued were within coverage “dead zones” in the radii of NEXRAD radars based in Little Rock, Springfield, Missouri, and Memphis, Tennessee;...
in both the X and Y dimensions and consequently have a higher gain. The NEXRAD Pulse-Doppler weather radar uses a symmetric antenna to perform detailed...
the maximum dBZ reflectivity from any of the reflectivity angles of the NEXRAD weather radar. In the Composite, the highest intensities amongst those available...
favor of ATD in 2016. Future radar networks – such as the successor to NEXRAD, and possibly across multiple disciplines external to meteorology, such...
1995 Mayfest Storm NEXRAD radar image of the hailstorm at 6:56 p.m. CST, 14 minutes before striking the Fort Worth Mayfest Type Hail storm, Flash flood...
Kingdom since 1974. Storm spotters are required because radar systems such as NEXRAD detect signatures that suggest the presence of tornadoes, rather than tornadoes...
relevant to the issues of climate change and ozone depletion. The NWS operates NEXRAD, a nationwide network of Doppler weather radars which can detect precipitation...
asynchronous training content. With the nationwide implementation of the NEXRAD program, NWS management formed a training group designed to create and teach...
transition period for the National Weather Service and proved the value of NEXRAD radars, which were utilized in Oklahoma to provide advanced warning to residents...
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