St. Louis County Office of Emergency Management

11/02/2026

Due to overcast weather conditions, St. Louis County’s monthly outdoor warning siren test scheduled for today has been canceled.

This does not mean the sirens are going untested! St. Louis County’s outdoor warning sirens undergo silent testing daily to help ensure the system remains operational. The monthly audible test is separate and will resume next month, weather permitting.

Remember, outdoor warning sirens are intended to alert people who are outdoors. Make sure you have multiple ways to receive weather alerts indoors, including a NOAA Weather Radio and trusted weather alert apps.

Stay weather-aware, St. Louis County!

10/05/2026

Today is the monthly outdoor warning siren test!

Reminder: The St. Louis County Outdoor Warning Siren System will be tested today, Monday, October 5, at 11:00 a.m.

Use today’s siren test as a reminder to take a few minutes to check your emergency preparedness. Is your emergency kit stocked and up to date? Does everyone in your household know what to do and where to go during an emergency?

Take this opportunity to review your emergency plan, check your emergency supplies, and make sure you have multiple ways to receive emergency alerts.

Remember, outdoor warning sirens are designed to alert people who are outdoors. For alerts indoors, consider using NOAA Weather Radio and St. Louis County RAVE Alerts.

To sign up for St. Louis County emergency alerts, text SLCOEM to 78015.

09/24/2026

Looking for a fun way to learn more about safety and connect with your community? Check out this upcoming Safety Day hosted by Metro West Fire Protection District, St. Louis County Missouri!

Stop by, meet local public safety partners, learn about valuable safety resources, and enjoy a great day with the community. We hope to see you there!

09/18/2026

September is National Preparedness Month!

Your emergency plan should probably be a little more detailed than “we’ll figure it out.”

Take some time this month to make a plan, build an emergency kit, sign up for alerts, and make sure you know where to get reliable information during an emergency.

A little preparation now can save you a lot of figuring-it-out later.

09/14/2026

SLCOEM Alert:

Heat Advisory issued September 14 at 11:30AM CDT until September 15 at 7:00PM CDT by NWS St Louis MO
http://www.weather.gov

09/10/2026

SLCOEM Alert:

Flood Advisory issued September 10 at 12:25AM CDT until September 10 at 3:30AM CDT by NWS St Louis MO
http://www.weather.gov

09/10/2026

SLCOEM Alert:

Severe Thunderstorm Warning
Severe Thunderstorm Warning issued September 9 at 11:37PM CDT until September 10 at 12:15AM CDT by NWS St Louis MO
http://www.weather.gov

09/03/2026

SLCOEM Alert:

Extreme Heat Warning
Extreme Heat Warning issued September 3 at 12:12AM CDT until September 5 at 8:00PM CDT by NWS St Louis MO
http://www.weather.gov

09/01/2026

September is National Preparedness Month!

Emergencies can happen when we least expect them, but taking a few simple steps now can make a big difference later.

This month, we’ll be sharing tips and resources to help you and your family prepare for whatever comes your way. Start today by making a plan, building your emergency kit, and staying informed.

A little preparation now can go a long way when it matters most.

📣 September is National Preparedness Month!

Join us throughout the month as we dive into Pennington County’s Ready, Set, Go! Evacuation Framework and the steps you can take now to be better prepared when an emergency happens.

We’ll be covering:
🔥 Different types of evacuation events - not just wildfires!
📱 Alerts and warnings
🐾 Preparing pets and livestock
🎒 Evacuation preparedness
🟢🟡🔴 And, of course, what it means to be READY, to get SET, to GO Now!

Follow along throughout September and make sure you and your household are prepared!

08/30/2026

SLCOEM Alert:

Extreme Heat Watch issued August 30 at 12:27PM CDT until September 4 at 8:00PM CDT by NWS St Louis MO
http://www.weather.gov