Legal Definitions - National Weather Service

The National Weather Service is a federal agency within the National Oceanic and Atmospheric Administration (NOAA) responsible for providing weather forecasts, severe weather warnings, and other weather-related information for the United States and its territories. Its primary mission is to protect life and property and enhance the national economy through the dissemination of timely and accurate weather, water, and climate data.

Here are some examples illustrating the role of the National Weather Service:

• Example 1: Daily Planning and Public Safety
  A construction company planning to pour concrete for a new building project checks the National Weather Service's local forecast to ensure there will be no rain or freezing temperatures for the next 48 hours. If the forecast indicates clear, mild weather, they proceed with the pour. If rain or cold is predicted, they reschedule to prevent damage to the fresh concrete. This demonstrates how the National Weather Service's routine forecasts enable businesses and individuals to make informed decisions for safety and operational efficiency.

• Example 2: Severe Weather Warnings
  During a strong thunderstorm, the National Weather Service issues a tornado warning for a specific county, broadcasting the alert through television, radio, and emergency notification systems. Residents in the affected area receive the warning on their phones and immediately take shelter in their basements or designated safe rooms. This illustrates the critical role of the National Weather Service in detecting dangerous weather phenomena and issuing timely warnings that prompt life-saving actions.

• Example 3: Aviation and Marine Safety
  An airline pilot preparing for a cross-country flight reviews the National Weather Service's aviation forecasts, including wind speeds at various altitudes, potential turbulence, and expected visibility at the destination airport. Similarly, a commercial fishing vessel captain consults marine forecasts for wave heights, wind advisories, and potential storm systems before heading out to sea. These actions highlight how the National Weather Service provides specialized meteorological information crucial for the safe operation of air and sea transportation.