Source: wikibot/low-level-windshear-alert-system
= Low-level windshear alert system
{wiki=Low-level_windshear_alert_system}
A Low-Level Windshear Alert System (LLWAS) is a safety system used at airports to detect and provide alerts for windshear conditions in the vicinity of an airport. Windshear refers to sudden changes in wind speed or direction over a short distance, which can pose serious risks to aircraft during takeoff and landing phases.