22일 18시 인천광역시, 경기서부지역 황사경보, 창문을 닫아 황사유입 차단 실외활동 자제, 외출할때 마스크 착용
As of 6pm, February 22nd, a Yellow Dust warning is in effect for Incheon and western Gyeonggi-do. Close all windows, try not to go outside, and wear a mask if you do go out.
I quite like these public service messages. There are other kinds you can receive as well, and I talked about some of them here.