Definition
Weather information specifically prepared and distributed for aviation use, covering current and forecast conditions that affect flight, including ceilings, visibility, winds, temperature, precipitation, icing, turbulence, and significant weather phenomena along a route or at airports of interest.
Plain English
The kind of weather information pilots need to plan and conduct a flight safely — not the general public forecast, but reports and forecasts focused on what matters in the air and at airports.
Context Anchor
Pilots encounter aviation weather when getting a briefing from a Flight Service Station, checking conditions before departure, or updating weather information while en route.
Derivation
Aviation comes from the Latin avis, meaning bird, through French aviation, meaning flying. Weather comes from Old English weder, meaning the state of the air. Together, aviation weather means the state of the air as it matters to flying.
Why Pilots Care
Aviation weather products are tailored to flight decisions — go/no-go, route selection, altitude choice, fuel planning, and alternate selection. General-public forecasts leave out details (like icing levels, turbulence reports, or runway visual range) that pilots are legally and operationally required to consider.
Intuition Check
Do not think of aviation weather as just a normal public weather report. It is weather information focused on how conditions affect aircraft, airports, routes, and pilot decisions.
Example Sentence 1
Before the cross-country, she called Flight Service for an aviation weather briefing covering current conditions, forecasts, and any hazards along the route.
Example Sentence 2
Updated aviation weather showed improving visibility along the route, so the flight continued.