A warning or alarm issued to alert people to danger or an impending disaster, e.g., via sirens, broadcasts, or emergency alerts.
台風の接近で自治体から大雨警報が出された。
A heavy rain warning was issued by the local government because of the approaching typhoon.
小学校で火災警報が鳴り、児童は速やかに避難した。
The fire alarm rang at the elementary school, and the students evacuated promptly.
スマホに緊急警報が届いて、避難所に向かった。
An emergency alert arrived on my phone, and I headed to the evacuation center.