LLWAS compares results over its operating area to determine whether calm, steady winds, wind shifts (in relation to runways), wind gusts, divergent winds, sustained divergent winds (indicative of shear), or strong and sustained divergent winds (indicative of microbursts) are observed. A LLWAS master station polls each remote station every system cycle (nominally every ten seconds) and provides prevailing airport wind averages, runway specific winds, gusts, may set new wind shear alerts or microburst alerts and reset countdown timers of elapsed time since the last alert.
LLWAS analyzes data within its coverage area to identify whether peaceful, steady winds, wind changes (in relation to runways), wind bursts, divergent breezes, sustained divergent breezes (indicating turbulence), or strong and sustained divergent breezes (indicating microbursts) are present. A LLWAS central station surveys each remote site every system cycle (typically every ten seconds) and provides average airport winds, runway-specific winds, gusts, may trigger new wind shear alerts or microburst alerts, and reset timers for the elapsed time since the last alert.