What is wx in aviation

Overview

In aviation, WX is the abbreviated term for weather, and it represents one of the most critical factors in flight planning and safety. Pilots must continuously monitor WX conditions before, during, and after flights. The Federal Aviation Administration (FAA) requires pilots to be familiar with WX briefings and to make decisions based on current and forecasted WX conditions.

WX Information for Pilots

Pilots receive WX information through several standardized formats. METARs (hourly weather reports) provide current WX conditions at specific airports, while TAFs (terminal aerodrome forecasts) predict WX conditions for the next 24-30 hours. Pilots also receive alerts for significant WX events such as thunderstorms, wind shear, icing conditions, and low visibility.

WX Impact on Flight Operations

WX significantly influences pilot decisions regarding flight routes, altitudes, and whether to fly at all. Severe WX such as thunderstorms or low visibility may result in flight delays, diversions, or cancellations. Pilots must understand how different WX conditions affect their aircraft's performance and handling characteristics.

WX Resources for Aviators

Pilots access WX information through multiple sources including Aviation Weather Center (AWC), Automated Flight Service Stations (AFSS), aviation weather apps, and onboard weather radar systems. Modern aircraft are increasingly equipped with real-time WX data systems that provide current conditions and alerts during flight.