06/04/2026
Severe weather can happen at any time of the day or night, which is why we encourage everyone to have more than one way to receive weather alerts. Consider using:
✅ NotifyJoCo Alerts
✅ Wireless Emergency Alerts (WEA) on your cell phone
✅ NOAA Weather Radio
✅ Local television, radio, and news outlets
✅ Trusted weather apps
For NOAA Weather Radio users, there are specialized attachments available for those who are deaf or hard of hearing that can activate strobe lights and vibrate a pillow when an alert is received. To receive alerts specifically for Johnson County, enter county code 020091 when programming your weather radio.
🔊 A reminder about outdoor warning sirens:
Outdoor warning sirens are designed to be heard outdoors and are intended to alert people outside to seek shelter immediately and obtain additional information. If you hear them indoors, that's a bonus—not their primary purpose.
To help prevent over-warning, sirens are typically activated only within the area affected by a National Weather Service warning polygon, not throughout the entire county. In some situations, such as when a warning polygon is unavailable, sirens may need to be activated for a larger area than the actual threat.
📍 NotifyJoCo works differently. Alerts are sent based on the addresses you have registered in the system. If you have multiple locations listed (home, work, school, etc.), you may receive an alert for one of those locations even if you are not currently there.
Take a few minutes today to review your alerting methods. When severe weather strikes, having multiple ways to receive warnings can save lives.
