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Understanding NEXRAD Radar Coverage: Essential Tips for Accurate Weather Monitoring

June 18, 2026 · The Clime Team
Understanding NEXRAD Radar Coverage: Essential Tips for Accurate Weather Monitoring

The Next Generation Weather Radar (NEXRAD) system is a network of 160 high-resolution S-band Doppler weather radars jointly operated by the National Weather Service (NWS), the Federal Aviation Administration (FAA), and the U.S. Air Force. This system detects precipitation and wind, providing critical data for weather forecasting and monitoring. (ncei.noaa.gov)

How Does NEXRAD Coverage Work?

NEXRAD radars are strategically positioned across the United States to offer comprehensive coverage. Each radar has a specific range, typically up to 230 kilometers (125 nautical miles), and their beams are designed to detect precipitation and wind patterns. (weather.gov)

What Are the Limitations of NEXRAD Coverage?

Despite the extensive network, NEXRAD coverage has certain limitations:

  • Beam Height and Earth's Curvature: As the radar beam travels away from the source, it rises due to the Earth's curvature. This phenomenon can result in lower-level gaps in coverage, especially beyond approximately 10,000 feet. (ny1.com)

  • Terrain Obstructions: Mountains and other geographical features can block radar signals, leading to areas with reduced or no coverage. For instance, the Franklin Mountains can obstruct portions of El Paso and Hudspeth Counties. (weather.gov)

  • Maintenance and Technical Issues: Radars may undergo maintenance or experience technical problems, leading to temporary outages or reduced coverage.

How Can You Interpret Radar Data Effectively?

To make the most of NEXRAD data:

  • Understand Coverage Gaps: Be aware of potential coverage gaps in your area due to beam height and terrain.

  • Use Multiple Sources: Combine NEXRAD data with other weather information sources to get a more comprehensive view.

  • Stay Updated: Regularly check for updates on radar coverage and maintenance schedules to ensure accurate information.

How Does Clime Enhance Weather Monitoring?

Clime leverages the NEXRAD network to provide real-time, high-resolution weather data. By integrating NEXRAD data with advanced analytics, Clime offers users precise and timely weather information, ensuring informed decision-making.

Understanding NEXRAD radar coverage and its limitations is crucial for accurate weather monitoring. By staying informed and utilizing comprehensive data sources, you can enhance your weather forecasting capabilities.

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