Definition
A wind-sensing device located near the middle of an airport that reports wind speed and direction representative of conditions over the runway environment as a whole, rather than at a specific runway end. The reading is typically displayed to controllers and may be passed to pilots, especially when wind conditions differ between the threshold sensors and the centerfield sensor — a common indicator of wind shear or microburst activity on the field.
Plain English
A wind sensor in the middle of the airport that shows what the wind is doing across the field, not just at the ends of the runway. If its reading is very different from the wind at the runway threshold, that difference is a warning that the wind is changing sharply across the airport.
Context Anchor
Seen in wind shear and landing discussions when comparing reported airport wind with the actual wind a pilot may encounter near the runway.
Derivation
‘Centerfield’ simply means the central area of the airfield. The term is descriptive: a wind indicator placed at the centre of the field, as opposed to one at the runway threshold or departure end. Naming it this way matters because the location is the whole point — comparing centerfield wind to threshold wind is what reveals shear across the airport.
Why Pilots Care
Allows immediate visual confirmation of surface wind conditions and helps detect wind shear by revealing discrepancies with winds reported at the runway or aloft.
Intuition Check
Do not assume “centerfield” means the wind is the same everywhere on the airport. Here, it means the wind is being shown from one central location, which may not match the wind at the runway end.
Example Sentence 1
Tower reported the threshold wind as calm but the centerfield wind indicator showing 25 knots from the opposite direction, so we went around and held clear of the area.
Example Sentence 2
When the centerfield wind indicator showed a sudden shift compared to the tower's report, the crew suspected wind shear and executed a go-around.