"It might sound like something small and insignificant, but amidst the chaos, and the terribleness of what is going on, it meant something."

Red alert sirens have sounded across Israel as the IDF warns a massive missile barrage has been launched by Iran

Sirens sounded in Jerusalem and the area following the launch of a missile from Yemen. IDF says the missile fell in the area of Hebron and no interceptors were launched.

Israel's Prime Minister Benjamin Netanyahu says his country will strike "every site and every target of the ayatollah regime" in Iran.

Larry Luxner, a former longtime Marylander who moved to Tel Aviv eight years ago, was awakened by the shrieking of sirens at 3 a.m. Friday. It was his first indication that the Israeli military

Across Europe, many countries have networks of bunkers that can hold millions of people and clearly publicised emergency procedures

Following the magnitude 7.8 Kaikōura earthquake in 2016, a communication breakdown meant Christchurch's sirens did not sound until two hours afterwards at 2am - an hour after Civil Defence issued an alert.

A man bounds through fallen debris next to the St. Louis Fire Department’s Engine House 28 shortly after a tornado hit in the 4800 block of Enright Avenue. A storm warning siren is seen at top center. In the days following the tornado, St. Louis Mayor Cara Spencer said the siren system didn’t properly activate before the tornado.

An emergency text alert about the storms was sent at 6:49 a.m., Washington County Judge-Executive Timothy Graves said during Friday's briefing. When asked why warning sirens weren't activated, Graves said there are "no sirens in this part of the county."

According to the NWS, scattered storms are expected Monday night through Tuesday morning, with mid-to-late week storm chances for the remainder of the week.

Residents complained that they received no prior alert from the Home Front Command’s advance-warning system and heard only the standard air-raid siren after the explosion.