Plain English Meaning
A record of what the weather is actually doing right now at a particular place, used by pilots to plan and fly safely.
Full Definition
Observed weather information gathered at specific locations and times, distributed through aviation channels to inform pilots of current conditions. Common examples include surface aviation observations (METARs), pilot reports (PIREPs), and radar weather reports. Weather reports describe what the weather is doing now, as opposed to forecasts, which predict what it will do later.
Context Anchor
Used during preflight planning, before departure, and whenever a pilot checks current conditions along a or .