The tornado that tore across the St. Louis area Friday reached EF3 intensity and a mile in width, the National Weather Service said after a damage survey.

Sen. Josh Hawley (R-MO) called on the Federal Emergency Management Agency to deliver critical assistance to St. Louis, which was devastated by an unprecedented tornado that killed more than a dozen people Friday.

The 23-mile-long twister claimed the lives of five people and caused over $1 billion in damages in the St. Louis region on Friday.

Mayor Cara Spencer late Tuesday night placed the head of the city's emergency management office on paid administrative leave, saying she wanted to provide accountability after tornado

On Tuesday afternoon, the City of St. Louis conducted a test of the emergency siren system, days after the sirens failed to go off in some areas before the May 16 tornado.

NWS survey crews surveyed damage from Monday night's storms. Here's how many tornadoes they've confirmed so far.

Before-and-after images highlight the damage to St. Louis, days after an EF-3 tornado tore through the city, leaving five people dead.